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Research article · 2025 · Full text

International Journal of Agriculture and Nutrition

Assessing the impact of sowing date on the growth attributes and yield components of various chickpea cultivars

Satyabrata MajhiRS ShaikhVR AwariMR PatilNS Kute

Volume 7(12) · Pages 27–33 · DOI: 10.33545/26646064.2025.v7.i12a.323 ↗

Research areasGenetic and Environmental Crop StudiesAgronomic Practices and Intercropping SystemsAgricultural pest management studies

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Abstract

Author-written

Chickpea (Cicer arietinum L.), a vital protein source in India, faces significant yield threats from climate change-induced temperature rise and suboptimal agronomic practices. Terminal heat stress, often caused by delayed sowing, severely impacts growth and productivity. Identifying resilient cultivars and optimal sowing windows is crucial for sustaining yield. A field experiment was conducted during the Rabi season of 2024-2025 in a semi-arid region. Ten chickpea cultivars were evaluated across three sowing dates (S1: last week of October, S2: third week of November, S3: second week of December) using a split-plot design. Growth parameters (Leaf Area Index, total dry matter content, Crop Growth Rate) and yield attributes were recorded and analyzed. Sowing date significantly influenced all measured parameters. Early sowing (S1) resulted in superior growth, with the highest Leaf Area Index (2.074 at 90 DAS), total dry matter accumulation (24.20 g plant⁻¹), and grain yield (27.68 q ha⁻¹). Among cultivars, 'Viswaraj' and 'Phule Vikram' demonstrated consistently high performance. Critically, significant interactions between sowing date and cultivar were observed for grain yield and key yield components, where 'Viswaraj' under S1 achieved the highest yield (31.33 q ha⁻¹).

Summary

Source-checked

Plain-language reading of the full paper, prepared with AI and checked against the text. Each point links to the authors' own words.

  1. Why it matters

    • Chickpea is a critical protein source in India, but its yield is threatened by suboptimal farming practices and rising temperatures caused by climate change. View evidence ↗

      Why it matters

      Chickpea is a critical protein source in India, but its yield is threatened by suboptimal farming practices and rising temperatures caused by climate change.

      In the paper's own words

      “Chickpea (Cicer arietinum L.), a vital protein source in India, faces significant yield threats from climate change-induced temperature rise and suboptimal agronomic practices.”

      Page 1

      Found in: Introduction

      Read it in the full textOpen PDF at page 1 ↗
    • Delayed sowing often leads to terminal heat stress, which severely reduces the growth and productivity of the crop. View evidence ↗

      Why it matters

      Delayed sowing often leads to terminal heat stress, which severely reduces the growth and productivity of the crop.

      In the paper's own words

      “Terminal heat stress, often caused by delayed sowing, severely impacts growth and productivity.”

      Page 1

      Found in: Introduction

      Read it in the full textOpen PDF at page 1 ↗
  2. The question

    • The study aims to identify the most resilient chickpea cultivars and the optimal sowing windows to sustain crop yields. View evidence ↗

      The question

      The study aims to identify the most resilient chickpea cultivars and the optimal sowing windows to sustain crop yields.

      In the paper's own words

      “Identifying resilient cultivars and optimal sowing windows is crucial for sustaining yield.”

      Page 1

      Found in: Introduction

      Read it in the full textOpen PDF at page 1 ↗
  3. What they did

    • The research was a field experiment conducted in a semi-arid tropical zone in Rahuri, Maharashtra, India, during the 2024-2025 Rabi season. View evidence ↗

      What they did

      The research was a field experiment conducted in a semi-arid tropical zone in Rahuri, Maharashtra, India, during the 2024-2025 Rabi season.

      In the paper's own words

      “A field experiment was conducted during the Rabi season of 2024-2025 at the Instructional Farm of the Department of Agricultural Botany, Mahatma Phule Krishi Vidyapeeth, Rahuri, Maharashtra, India, located in a semi-arid tropical (scarcity) zone.”

      Page 2

      Found in: Materials and Methods

      Read it in the full textOpen PDF at page 2 ↗
    • Using a split-plot design with three replications, the researchers tested ten chickpea cultivars across three sowing dates: late October (S1), mid-November (S2), and mid-December (S3). View evidence ↗

      What they did

      Using a split-plot design with three replications, the researchers tested ten chickpea cultivars across three sowing dates: late October (S1), mid-November (S2), and mid-December (S3).

      In the paper's own words

      “The study was laid out in a Split Plot Design with three replications. Ten chickpea (Cicer arietinum L.) cultivars... were assigned to sub-plots, while three sowing dates constituted the main plots: S1 (last week of October), S2 (third week of November), and S3 (second week of December).”

      Page 2

      Found in: Materials and Methods

      Read it in the full textOpen PDF at page 2 ↗
    • The researchers measured yield attributes and growth parameters, specifically the Crop Growth Rate, total dry matter content, and Leaf Area Index. View evidence ↗

      What they did

      The researchers measured yield attributes and growth parameters, specifically the Crop Growth Rate, total dry matter content, and Leaf Area Index.

      In the paper's own words

      “Growth parameters (Leaf Area Index, total dry matter content, Crop Growth Rate) and yield attributes were recorded and analyzed.”

      Page 1

      Found in: Growth Parameters Leaf area index (LAI)

      Read it in the full textOpen PDF at page 1 ↗
  4. What they found

    • Early sowing (S1) produced the highest Leaf Area Index (LAI) at all stages, peaking at 2.074, compared to S2 (peak 1.925) and S3 (peak 1.563). View evidence ↗

      What they found

      Early sowing (S1) produced the highest Leaf Area Index (LAI) at all stages, peaking at 2.074, compared to S2 (peak 1.925) and S3 (peak 1.563).

      In the paper's own words

      “The earliest sowing date (S1) consistently yielded the highest LAI values at all four stages (0.413, 1.283, 2.074, and 1.312), which were significantly greater than those of S2 (0.374, 1.201, 1.925, 1.135) and the lowest-performing S3 (0.306, 1.080, 1.563, 1.005).”

      Page 2

      Found in: Growth Parameters Leaf area index (LAI)

      Read it in the full textOpen PDF at page 2 ↗
    • Total dry weight was highest for early sowing (S1), reaching 24.20 g plant⁻¹ at maturity, while late sowing (S3) was the lowest at 20.24 g plant⁻¹. View evidence ↗

      What they found

      Total dry weight was highest for early sowing (S1), reaching 24.20 g plant⁻¹ at maturity, while late sowing (S3) was the lowest at 20.24 g plant⁻¹.

      In the paper's own words

      “the earliest sowing date (S1) resulted in a significantly higher total dry weight at all stages (0.68, 7.77, 16.98, and 24.20 g plant⁻¹ at 30, 60, 90 DAS, and maturity, respectively), which was superior to the intermediate S2 and the lowest-yielding S3 (0.46, 6.32, 14.12, and 20.24 g plant⁻¹).”

      Page 2

      Found in: Growth Parameters Leaf area index (LAI)

      Read it in the full textOpen PDF at page 2 ↗
    • Sowing date significantly affected plant height, with early sowing (S1) resulting in the tallest plants (49.99 cm) and late sowing (S3) the shortest (42.33 cm). View evidence ↗

      What they found

      Sowing date significantly affected plant height, with early sowing (S1) resulting in the tallest plants (49.99 cm) and late sowing (S3) the shortest (42.33 cm).

      In the paper's own words

      “the earliest sowing (S1) producing the tallest plants (49.99 cm) and the late sowing (S3) have shortest (42.33 cm).”

      Page 2

      Found in: Growth Parameters Leaf area index (LAI)

      Read it in the full textOpen PDF at page 2 ↗
    • Pod count was highest in early sowing (S1) at 74.41 pods plant⁻¹ and lowest in late sowing (S3) at 60.01 pods plant⁻¹. View evidence ↗

      What they found

      Pod count was highest in early sowing (S1) at 74.41 pods plant⁻¹ and lowest in late sowing (S3) at 60.01 pods plant⁻¹.

      In the paper's own words

      “the earliest sowing date (S1) yielded the significantly highest pod count (74.41 pods plant⁻¹), followed by S2 (67.99 pods plant⁻¹), while the late sowing (S3) resulted in the lowest pod number (60.01 pods plant⁻¹).”

      Page 3

      Found in: Number of pods plant -1

      Read it in the full textOpen PDF at page 3 ↗
    • Grain yield was significantly higher for early sowing (S1) at 27.68 q ha⁻¹ compared to S2 (24.78 q ha⁻¹) and S3 (17.53 q ha⁻¹). View evidence ↗

      What they found

      Grain yield was significantly higher for early sowing (S1) at 27.68 q ha⁻¹ compared to S2 (24.78 q ha⁻¹) and S3 (17.53 q ha⁻¹).

      In the paper's own words

      “The data revealed that the earliest sowing date (S1) produced the significantly highest grain yield (27.68 q ha⁻¹), outperforming S2 (24.78 q ha⁻¹) and the lowest-yielding S3 (17.53 q ha⁻¹)”

      Page 3

      Found in: Number of pods plant -1

      Read it in the full textOpen PDF at page 3 ↗
    • The combination of the 'Viswaraj' cultivar and early sowing (S1) produced the absolute highest grain yield of 31.33 q ha⁻¹. View evidence ↗

      What they found

      The combination of the 'Viswaraj' cultivar and early sowing (S1) produced the absolute highest grain yield of 31.33 q ha⁻¹.

      In the paper's own words

      “The absolute highest yield (31.33 q ha⁻¹) was achieved by growing Viswaraj under the early S1 sowing condition.”

      Page 3

      Found in: Number of pods plant -1

      Read it in the full textOpen PDF at page 3 ↗
    • The lowest grain yield (15.98 q ha⁻¹) occurred when the 'Phule G-1131-4' cultivar was sown late (S3). View evidence ↗

      What they found

      The lowest grain yield (15.98 q ha⁻¹) occurred when the 'Phule G-1131-4' cultivar was sown late (S3).

      In the paper's own words

      “Conversely, the lowest yield (15.98 q ha⁻¹) was recorded for Phule G-1131-4 under the late S3 sowing”

      Page 3

      Found in: Number of pods plant -1

      Read it in the full textOpen PDF at page 3 ↗
  5. What it means

    • The authors conclude that maximizing productivity requires combining early sowing dates with high-performing cultivars tailored to the local environment to avoid terminal heat stress. View evidence ↗

      What it means

      The authors conclude that maximizing productivity requires combining early sowing dates with high-performing cultivars tailored to the local environment to avoid terminal heat stress.

      In the paper's own words

      “the optimal strategy for maximizing chickpea productivity necessitates the integration of early sowing dates with carefully selected, high-performing cultivars suited to the local growing environment.”

      Page 6

      Found in: Conclusion

      Read it in the full textOpen PDF at page 6 ↗

Visual summary

1 visuals

Illustrations explain the paper; they do not show study data.

AI-generated illustration
AI-generated conceptual illustration (chickpea plants (Cicer arietinum)). It explains the idea and does not show study data.↗ Enlarge
Impact of Sowing Date and Cultivar on Yield
AI-generated conceptual illustration (chickpea plants (Cicer arietinum)). It explains the idea and does not show study data.

AI-generated conceptual illustration (chickpea plants (Cicer arietinum)). It explains the idea and does not show study data.

Open full-size image ↗

Impact of Sowing Date and Cultivar on Yield

AI-generated conceptual illustration (chickpea plants (Cicer arietinum)). It explains the idea and does not show study data.

View source evidence ↗

Figures & tables

From the original paper
Leaf area index as influenced by sowing dates, cultivars and their interaction in chickpeaTable 1Page 3Total dry matter content (g plant-1) as influenced by sowing dates, cultivars and their interaction in chickpeaTable 2Page 4Crop growth rate (g dm⁻² day⁻¹) as influenced by sowing dates, cultivars and their interaction in chickpeaTable 3Page 4Plant height (cm) and Number of pods plant-1 as influenced by sowing dates and their interaction in chickpeaTable 4Page 5Plant height (cm) at maturity as influenced by interaction between sowing dates and cultivarsTable 5Page 5Number of pods plant-1at maturity as influenced by interaction between sowing dates and cultivars.Table 6Page 5Number of primary branches plant-1 and Number of secondary branches plant-1 as influenced by sowing dates, cultivars and theirTable 7Page 6Grain yield (q ha-1) as influenced by sowing dates, cultivars and their interaction in chickpeaTable 8Page 6Grain yield (q ha-1) as influenced by interaction betweenTable 9Page 6
FULL TEXT Original article · reflowed for reading

Introduction

Chickpea (Cicer arietinum L.) is a critical cool-season legume and a vital source of dietary protein, particularly in vegetarian populations (Hulse, 1991) [11] . As the world's largest producer, India's pulse security is heavily reliant on chickpea, which accounts for approximately 40% of the nation's total pulse production (Anonymous, 2023). However, an alarming decline in per capita availability, from 69g in 1961 to 47g in 2023, underscores a major challenge in sustaining supply against a backdrop of rising population demands (Anonymous, 2022-23). A primary threat to chickpea productivity is climate change-induced temperature rise. Projections indicate a global temperature increase of 1.6 to 3.8°C by 2100 (Anonymous. 2007), with even a 1°C rise during critical growth periods capable of causing massive yield reductions (Lobell & Field, 2007) [15] . Chickpea is highly vulnerable to heat stress, with yields anticipated to decline by 10-15% for every degree centigrade above the optimum temperature (Devasirvatham et al., 2018) [7] . The physiological mechanisms behind this are well-documented, including impaired photosynthesis, loss of pollen viability, and increased ovule abortion, leading to poor seed set (Wahid et al., 2007; Zinn et al., 2010) [23,24] . Compounding this climatic threat are agronomic constraints, particularly sowing time. In major producing states like Maharashtra, sowing is often delayed due to the late harvest of preceding crops like sugarcane and cotton, pushing the critical pod-filling stage into periods of sharply rising temperatures from mid-February onward. This terminal heat stress severely hinders the plant's ability to reach full maturity and maximize yield. Conversely, early sowing risks exposure to low temperatures (<10 °C), which can cause excessive floral abortion and losses of 15-25% (Ali & Kumar, 2005; Bakht et al., 2006) [1,5] . While sowing time is recognized as a vital agronomic practice (Sekhar et al., 2015; Bazvand et al., 2015) [20,6] , the optimal window varies by genotype and environment, and research findings on its impact have given mixed results (Nanda & Saini, 1992; Dixit et al., 2019) [16,9] . Crucially, there remains a limited understanding of the physiological and biochemical mechanisms that enable certain cultivars to withstand these sowing date-induced stresses.

Materials and Methods

A field experiment was conducted during the Rabi season of 2024-2025 at the Instructional Farm of the Department of Agricultural Botany, Mahatma Phule Krishi Vidyapeeth, Rahuri, Maharashtra, India, located in a semi-arid tropical (scarcity) zone. The soil of the experimental plot was medium black with uniform fertility and good drainage. The study was laid out in a Split Plot Design with three replications. Ten chickpea (Cicer arietinum L.) cultivars, namely Phule Vikram, Vishal, Viswaraj, Vikrant, Digvijay, Phule G-1302-3-5, Phule G-1403-18-14, Phule G-1511-17-11, Vijay and Phule G-1131-4, were assigned to sub-plots, while three sowing dates constituted the main plots: S1 (last week of October), S2 (third week of November), and S3 (second week of December). The gross and net plot sizes were 3.0 m × 2.1 m and 2.8 m × 1.5 m, respectively, with a spacing of 30 cm × 10 cm. Field preparation involved one deep ploughing followed by two harrowings to obtain a fine tilth. Farmyard manure was applied at 5 t ha⁻¹ during land preparation, and a recommended fertilizer dose of 15 kg N, 40 kg P₂O₅, and 20 kg K₂O ha⁻¹ was applied at sowing using urea, single super phosphate, and muriate of potash. Seeds were dibbled with two seeds per hill. The mean maximum and minimum temperatures during the crop season ranged from 26.9 °C to 37.1 °C and 8.0 °C to 31.1 °C, respectively. The data collected for all parameters were subjected to Analysis of Variance (ANOVA) for a split-plot design as outlined by Panse and Sukhatme (1985) [17] . Treatment significance was tested at the 5% probability level, and the Critical Difference (C.D.) was calculated for comparing significant means.

Results and Discussion

Results and Discussion

Growth Parameters Leaf area index (LAI)

Based on the data, significant differences in Leaf Area Index (LAI) were observed for both sowing dates and cultivars, though their interaction was found to be non-significant. The earliest sowing date (S1) consistently yielded the highest LAI values at all four stages (0.413, 1.283, 2.074, and 1.312), which were significantly greater than those of S2 (0.374, 1.201, 1.925, 1.135) and the lowest-performing S3 (0.306, 1.080, 1.563, 1.005). Among the cultivars, Phule Vikram recorded the highest LAI at every stage, with values of 0.521 at 30 DAS, 1.278 at 60 DAS, 1.973 at 90 DAS, and 1.269 at maturity. Conversely, the lowest LAI values were generally observed in Phule G-1511-17-11 at 30 and 90 DAS (0.233 and 1.713), Vijay at 60 DAS (1.042) and Digvijay at maturity (1.052). This trend can be attributed to optimal temperature and photoperiod conditions during early sowing, promoting vigorous vegetative growth (Dutta et al., 2018) [10] .

The observed data indicated that the earliest sowing date (S1) resulted in a significantly higher total dry weight at all stages (0.68, 7.77, 16.98, and 24.20 g plant⁻¹ at 30, 60, 90 DAS, and maturity, respectively), which was superior to the intermediate S2 and the lowest-yielding S3 (0.46, 6.32, 14.12, and 20.24 g plant⁻¹). Among cultivars, Phule Vikram consistently recorded the highest or among the highest dry matter content, reaching 8.03 g plant⁻¹ at 60 DAS, 16.15 g plant⁻¹ at 90 DAS, and 23.28 g plant⁻¹ at maturity. The lowest values were generally observed in Phule G-1511-17-11 at 60 and 90 DAS (5.65 and 14.64 g plant⁻¹) and in Phule G-1403-18-14 at maturity (20.97 g plant⁻¹). The interaction between sowing dates and cultivars was found to be nonsignificant at all growth stages. The timing of sowing and temperature, particularly heat stress during the flowering stage, have a major impact on chickpea plant's capacity to develop and generate biomass. These results are in accordance with the findings of Kumar et al., 2019 [14] .

The data revealed that the earliest sowing date (S1) consistently yielded the highest crop growth rate (CGR) across all intervals (0.0082, 0.079, 0.102, and 0.084 g dm⁻² day⁻¹), with S2 (0.0061, 0.072, 0.090, 0.079 g dm⁻² day⁻¹)

performing intermediately and S3 (0.0051, 0.065, 0.087, 0.073 g dm⁻² day⁻¹) recording the lowest, a result of the longer, more favorable growing period from early sowing. Among cultivars, significant differences were found in the first three stages: Phule Vikram recorded the highest CGR at 0-30 DAS (0.0075 g dm⁻² day⁻¹) and 30-60 DAS (0.084 g dm⁻² day⁻¹), while Viswaraj was highest at 60-90 DAS (0.107 g dm⁻² day⁻¹); Vijay consistently showed the lowest values in the 0-30 DAS and 30-60 DAS (0.0056 and 0.057 g dm⁻² day⁻¹). No significant differences between cultivars were found from 90 DAS to maturity, and the interaction between sowing dates and cultivars was non-significant at all growth stages. Crop growth rate (CGR) varies among genotypes of chickpeas due to genetic diversity affecting important morphological and physiological characteristics. These characteristics impact a plant's growth and environmental response and are based on the distinct genetic composition of a genotype. Similar results have been observed by Kabir et al., 2009 [12] .

The data revealed that sowing date had a significant effect on plant height, with the earliest sowing (S1) producing the tallest plants (49.99 cm) and the late sowing (S3) have shortest (42.33 cm). Among cultivars, Phule Vikram recorded the significantly highest plant height (52.60 cm), which was statistically on par with Vikrant (50.18 cm), while Vijay was the shortest (39.48 cm). The interaction between sowing dates and cultivars for plant height was significant. The combination of the optimal sowing date and cultivar, S1 (early sowing) with Phule Vikram (V1), yielded the absolute highest plant height (53.96 cm). Several other combinations, including S1V4 (53.67 cm), S1V3 (52.88 cm), S1V2 (52.70 cm), S2V1 (52.20 cm), S3V1 (51.64 cm), and S1V5 (50.50 cm), were statistically on par with Phule Vikram under S1. Conversely, the worstperforming combination was Vijay under the late S3 sowing, which resulted in the significantly lowest plant height (33.30 cm).The superior performance of Phule Vikram across all sowing dates, especially when sown early (S1), highlights its genetic potential for vigorous vegetative growth. The drastic reduction in height for the late-sown Vijay (S3) underscores the severe negative impact of terminal heat stress on susceptible cultivars, as supported by the findings of Devasirvatham et al., (2020) [8] and Saxena et al., (2019) [19] .

Number of primary and secondary branches plant -1

Based on the data, significant differences were observed in the number of primary and secondary branches per plant due to sowing dates and cultivars, though their interactions were non-significant. For primary branches, the earliest sowing date (S1) resulted in the highest number (3.56), followed by S2 (2.58), with the late sowing (S3) producing the fewest (1.90). Among cultivars, Viswaraj recorded the most primary branches (3.45), which was statistically on par with Phule Vikram (3.19) and Vikrant (3.02), while Phule G-1511-17-11 had the fewest (1.88). These findings highlight the role of genetics in determining branching potential, as noted by Satish et al., (2006) [25] . For secondary branches, a similar trend was observed. Sowing date S1 yielded the highest number (10.02), statistically at par with S2 (9.56), while S3 resulted in the lowest (8.57). Among cultivars, Viswaraj had the most secondary branches (11.01), which was statistically at par with Phule Vikram (10.33), whereas Phule G-1511-17-11 again had the fewest (8.08). As documented by Tomar et al., (1991) [22] , this confirms that branching is influenced by both sowing time and genetic potential, directly impacting the plant's reproductive architecture and ultimate yield potential.

Number of pods plant -1

There were significant interaction between cultivars and the dates of sowing for number of pods plant⁻¹. The data revealed the earliest sowing date (S1) yielded the significantly highest pod count (74.41 pods plant⁻¹), followed by S2 (67.99 pods plant⁻¹), while the late sowing (S3) resulted in the lowest pod number (60.01 pods plant⁻¹). This decline is attributed to terminal heat stress impairing reproductive development as noted by Devasirvatham et al., 2020 [8] . Among cultivars, Viswaraj produced the highest pod number (76.86 pods plant⁻¹), which was statistically on par with Phule Vikram (73.38 pods plant⁻¹). In contrast, Phule G-1511-17-11 recorded the lowest pod count (55.94 pods plant⁻¹), highlighting genetic differences in pod-setting ability and stress tolerance. The combination of the optimal sowing date and cultivar, S1 (early sowing) with Viswaraj (V3), produced the absolute highest number of pods (86.28 pods plant⁻¹). This was statistically at par with the combination S1V6 (80.17 pods plant⁻¹). Conversely, the worst-performing combination was Phule G-1511-17-11 under the late S3 sowing, which yielded the lowest pod count (50.25 pods plant⁻¹). This interaction underscores that maximizing pod output requires both an high-performing cultivar and an appropriate sowing window, a finding consistent with Dixit et al., (2019) [9] .

The data revealed that the earliest sowing date (S1) produced the significantly highest grain yield (27.68 q ha⁻¹), outperforming S2 (24.78 q ha⁻¹) and the lowest-yielding S3 (17.53 q ha⁻¹), a reduction attributed to terminal heat stress during reproductive stages as documented by Kumar et al,.

(2013) [13] . Among cultivars, Viswaraj yielded the highest (25.57 q ha⁻¹) which was statistically at par with Phule Vikram (24.42 q ha -1 ), Digvijay (23.90 q ha -1 ) and Phule G-1302-3-5(23.78 q ha -1 ) while Phule G-1511-17-11 recorded the lowest (21.04 q ha⁻¹). A significant interaction between sowing dates and cultivars was found, indicating that the best yields are achieved by combining the optimal genotype with the correct sowing window. The absolute highest yield (31.33 q ha⁻¹) was achieved by growing Viswaraj under the early S1 sowing condition. This combination was followed by other S1 combinations: S1V6 (30.54 q ha⁻¹), S1V2 (28.84 q ha⁻¹), S1V5 (28.52 q ha⁻¹), and S1V1 (28.43 q ha⁻¹). Conversely, the lowest yield (15.98 q ha⁻¹) was recorded for Phule G-1131-4 under the late S3 sowing, highlighting the severe penalty of combining a susceptible cultivar with a stressful environment. Thudi et al. (2021) [21] emphasize the necessity of genotype-specific planting advice due to the noteworthy interplay between cultivars and Sowing dates. Same results were reported by Kumar et al. (2013) [13] who noted that early sowing ensures optimal use of resources, enhancing yield components and final productivity.

Conclusion

Based on the comprehensive analysis, it is conclusively established that sowing date is a paramount factor influencing chickpea growth and yield, with early sowing providing significantly superior outcomes compared to delayed sowing. The advantages of early sowing are manifested through enhanced physiological traits such as leaf area development, dry matter accumulation, and crop growth rate, which collectively contribute to robust vegetative growth and higher productivity. This is largely attributed to the avoidance of terminal heat stress, which severely constrains the performance of late-sown crops. Furthermore, significant genotypic variation exists among cultivars, with certain genotypes demonstrating exceptional vegetative vigor and others excelling in reproductive output and stress tolerance. Critically, the interaction between sowing date and cultivar is highly significant for key yield components, revealing that the highest yields are achieved by synergistically combining early sowing with highyielding, stress-resilient cultivars. Therefore, the optimal strategy for maximizing chickpea productivity necessitates the integration of early sowing dates with carefully selected, high-performing cultivars suited to the local growing environment. This approach effectively mitigates the adverse effects of terminal stress and capitalizes on favorable seasonal conditions, as supported by established agronomic research.

Figures and tables from the paper

Table 1. Leaf area index as influenced by sowing dates, cultivars and their interaction in chickpea
Factors30 DAS60 DAS90 DASAt maturity
a. Sowing dates
S1-Last week of October0.4131.2832.0741.312
S2- 3rd week of November0.3741.2011.9251.135
S3- 2nd week of December0.3061.0801.5631.005
SE (m) ±0.0080.0170.0330.034
CD at 5%0.0300.0670.1310.134
b. Cultivars
V1-Phule Vikram0.5211.2781.9731.269
V2 -Vishal0.3011.2381.8771.251
V3-Viswaraj0.3901.1731.9581.174
V4-Vikrant0.4081.1671.8681.093
V5-Digvijay0.4781.2551.8381.052
V6-Phule G-1302-3-50.4151.2671.8511.148
V7-Phule G-1403-18-140.3281.0971.7621.120
V8-Phule G-1511-17-110.2331.1701.7131.141
V9-Vijay0.2611.0421.8871.159
V10-Phule G-1131-40.3091.1951.8121.100
SE (m) ±0.0120.0230.0510.045
CD at 5%0.0340.0640.1460.126
Interactions(sowing dates × cultivars)
SE (m) ±0.0200.0390.0890.077
CD at 5%NSNSNSNS
General mean0.3641.1881.8541.151

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Table 1
Leaf area index as influenced by sowing dates, cultivars and their interaction in chickpea

Leaf area index as influenced by sowing dates, cultivars and their interaction in chickpea

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Original paper tableSource PDF · page 3 ↗
Table 2. Total dry matter content (g plant-1) as influenced by sowing dates, cultivars and their interaction in chickpea
Factors30 DAS60 DAS90 DASAt maturity
a. Sowing dates
S1-Last week of October0.687.7716.9824.20
S2- 3rd week of November0.557.0515.1421.72
S3- 2nd week of December0.466.3214.1220.24
SE (m) ±0.010.070.120.34
CD at 5%0.040.260.461.32
b. Cultivars
V1-Phule Vikram0.468.0316.1523.28
V2 -Vishal0.537.9515.7321.73
V3-Viswaraj0.637.8715.8421.24
V4-Vikrant0.587.7716.0622.65
V5-Digvijay0.596.3514.9522.54
V6-Phule G-1302-3-50.547.1115.0722.35
V7-Phule G-1403-18-140.686.9615.1320.97
V8-Phule G-1511-17-110.515.6514.6421.71
V9-Vijay0.607.0715.2921.87
V10-Phule G-1131-40.515.6815.2822.17
SE (m) ±0.020.200.340.41
CD at 5%0.060.550.981.17
Interactions (sowing dates × cultivars)
SE (m) ±0.040.340.5960.715
CD at 5%NSNSNSNS
General mean0.567.0415.4122.05

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Total dry matter content (g plant-1) as influenced by sowing dates, cultivars and their interaction in chickpea

Total dry matter content (g plant-1) as influenced by sowing dates, cultivars and their interaction in chickpea

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Table 3. Crop growth rate (g dm⁻² day⁻¹) as influenced by sowing dates, cultivars and their interaction in chickpea
Factors0-30 DAS30-60 DAS60-90 DAS90 DAS - maturity
a. Sowing dates
S1-Last week of October0.00820.0790.1020.084
S2- 3rd week of November0.00610.0720.0900.079
S3- 2nd week of December0.00510.0650.0870.073
SE (m) ±0.00020.0010.0010.002
CD at 5%0.00080.0030.0030.007
b. Cultivars
V1-Phule Vikram0.00750.0840.0900.084
V2 -Vishal0.00700.0820.0960.078
V3-Viswaraj0.00710.0810.1070.088
V4-Vikrant0.00670.0580.0910.085
V5-Digvijay0.00640.0800.0880.086
V6-Phule G-1302-3-50.00610.0720.0930.083
V7-Phule G-1403-18-140.00600.0700.1000.08
V8-Phule G-1511-17-110.00610.0640.0890.063
V9-Vijay0.00560.0570.0910.07
V10-Phule G-1131-40.00620.0720.0860.07
SE (m) ±0.00030.0020.0040.007
CD at 5%0.00100.0060.012NS
Interactions(sowing dates × cultivars)
SE (m) ±0.000610.0040.0070.013
CD at 5%NSNSNSNS
General mean0.00640.0720.0930.079

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Crop growth rate (g dm⁻² day⁻¹) as influenced by sowing dates, cultivars and their interaction in chickpea

Crop growth rate (g dm⁻² day⁻¹) as influenced by sowing dates, cultivars and their interaction in chickpea

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Table 4. Plant height (cm) and Number of pods plant-1 as influenced by sowing dates and their interaction in chickpea
FactorsPlant height (cm)Number of pods plant-1
a. Sowing dates
S1- Last week of October49.9974.41
S2- 3rd week of November45.1067.99
S3- 2nd week of December42.3360.01
SE (m) ±0.490.46
CD at 5%1.911.79
b. Cultivars
V1-Phule Vikram52.6073.38
V2 -Vishal48.6964.11
V3-Viswaraj45.1876.86
V4-Vikrant50.1867.94
V5-Digvijay48.4970.06
V6-Phule G-1302-3-544.7269.94
V7-Phule G-1403-18-1444.7363.92
V8-Phule G-1511-17-1143.1355.94
V9-Vijay39.4869.32
V10-Phule G-1131-440.8963.25
SE (m) ±0.861.27
CD at 5%2.443.59

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Plant height (cm) and Number of pods plant-1 as influenced by sowing dates and their interaction in chickpea

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Table 5. Plant height (cm) at maturity as influenced by interaction between sowing dates and cultivars
FACTORSS1—S2S3—Mean
V1-Phule Vikram53.9652.2051.6452.60
V2 -Vishal52.7047.9845.4048.69
V3-Viswaraj52.8844.9337.7345.18
V4-Vikrant53.6749.0547.8250.18
V5-Digvijay50.5048.8946.1048.49
V6-Phule G-1302-3-548.2643.4342.4844.72
V7-Phule G-1403-18-1448.4543.8541.8844.73
V8-Phule G-1511-17-1147.6041.7540.0443.13
V9-Vijay47.0238.1233.3039.48
V10-Phule G-1131-444.8940.8436.9340.89
Mean49.9945.1042.3345.81
Interactions(sowing dates × cultivars)
SE (m) ±CD at 5%General mean
1.494.2245.81

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Plant height (cm) at maturity as influenced by interaction between sowing dates and cultivars

Plant height (cm) at maturity as influenced by interaction between sowing dates and cultivars

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Table 6. Number of pods plant-1at maturity as influenced by interaction between sowing dates and cultivars.
—S1S2—S3—Mean
V1-Phule Vikram75.7869.5674.8173.38
V2 -Vishal69.2165.0158.1164.11
V3-Viswaraj86.2876.8267.4776.86
V4-Vikrant72.4770.0161.3467.94
V5-Digvijay80.0170.6159.5570.06
V6-Phule G-1302-3-580.1770.5459.0969.94
V7-Phule G-1403-18-1473.6164.5553.6063.92
V8-Phule G-1511-17-1160.6956.8750.2555.94
V9-Vijay77.1568.6162.1969.32
V10-Phule G-1131-468.7467.3653.6563.25
Mean74.4167.9960.0167.47
Interactions(sowing dates × cultivars)
SE (m) ±CD at 5%General mean
2.1966.22667.47

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Number of pods plant-1at maturity as influenced by interaction between sowing dates and cultivars.

Number of pods plant-1at maturity as influenced by interaction between sowing dates and cultivars.

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Table 7. Number of primary branches plant-1 and Number of secondary branches plant-1 as influenced by sowing dates, cultivars and their
FactorsNumber of primary branches plant-1Number of secondary branches plant-1
a. Sowing dates
S1- Last week of October3.5610.02
S2- 3rd week of November2.589.56
S3- 2nd week of December1.908.57
SE (m) ±0.090.20
CD at 5%0.370.79
b. Cultivars
V1-Phule Vikram3.1910.33
V2 -Vishal3.009.66
V3-Viswaraj3.4511.01
V4-Vikrant3.029.21
V5-Digvijay2.519.80
V6-Phule G-1302-3-52.729.03
V7-Phule G-1403-18-142.458.93
V8-Phule G-1511-17-111.888.08
V9-Vijay2.379.23
V10-Phule G-1131-42.238.57
SE (m) ±0.150.26
CD at 5%0.430.73
Interactions(sowing dates × cultivars)
SE (m) ±0.2650.446
CD at 5%NSNS
General mean2.689.38

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Number of primary branches plant-1 and Number of secondary branches plant-1 as influenced by sowing dates, cultivars and their

Number of primary branches plant-1 and Number of secondary branches plant-1 as influenced by sowing dates, cultivars and their

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Table 8. Grain yield (q ha-1) as influenced by sowing dates, cultivars and their interaction in chickpea
FACTORSS1—S2S3—Mean
V1-Phule Vikram28.4327.2317.6124.42
V2 -Vishal28.8424.8416.4323.37
V3-Viswaraj31.3326.9718.4225.57
V4-Vikrant26.8825.2418.4223.51
V5-Digvijay28.5225.8917.2723.90
V6-Phule G-1302-3-530.5424.3416.4623.78
V7-Phule G-1403-18-1427.7922.2817.8822.65
V8-Phule G-1511-17-1123.3921.5418.2021.04
V9-Vijay26.3426.0118.6423.67
V10-Phule G-1131-426.5223.4215.9821.98
Mean27.8624.7817.5323.39
Interactions(sowing dates × cultivars)
SE (m) ±CD at 5%General mean
1.1353.21723.39

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Grain yield (q ha-1) as influenced by sowing dates, cultivars and their interaction in chickpea

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Table 9. Grain yield (q ha-1) as influenced by interaction between
FactorsGrain yield (q ha-1)
S1- Last week of October27.68
S2- 3rd week of November24.78
S3- 2nd week of December17.53
SE (m) ±0.52
CD at 5%2.02
V1-Phule Vikram24.42
V2 -Vishal23.37
V3-Viswaraj25.57
V4-Vikrant23.51
V5-Digvijay23.90
V6-Phule G-1302-3-523.78
V7-Phule G-1403-18-1422.65
V8-Phule G-1511-17-1121.04
V9-Vijay23.67
V10-Phule G-1131-421.98
SE (m) ±0.66
CD at 5%1.86

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Grain yield (q ha-1) as influenced by interaction between

Grain yield (q ha-1) as influenced by interaction between

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