Effect of bio-regulators on vegetative growth of African marigold (Tagetes erecta L.) cv. Pusa Narangi Gainda

Abstract

The present investigation entitled “Effect of bio-regulators on vegetative growth of African Marigold (Tagetes erecta L.)” was carried out at Horticultural Research Centre (HRC) of Sardar Vallabhbhai Patel University of Agriculture and Technology Modipuram, Meerut, Uttar Pradesh during the year 2016-2017. The layout of experimental field was laid down in Randomized Block Design in which ten treatments along with 3 replications. The height of plant was recorded significantly maximum with application of GA3 300 ppm (76.05 cm) which was at par with GA3 200 ppm (75.24 cm), while minimum plant height was recorded with MH 400 ppm (56.07 cm). The application of Ethrel 400 ppm showed maximum number of branches (43.35) however, minimum numbers of branches were recorded in control (25.33). Maximum spread of the plant was recorded with GA3 300 ppm (51.55 cm) however, minimum spread of plant was recorded in Ethrel 400 ppm (34.64 cm). It is recommended to farmers for commercial cultivation of African marigold (Tagets erecta L.) cv. Pusa Narangi Gainda.