Effect of plant growth regulators and nutrients on yield attributing characters and yield of ber (Zizyphus mauritiana Lamk.) cv. Gola

Abstract

The experiment was conducted at S.K.N. College of Agriculture Jobner (Rajasthan) on four years old uniform trees of ber cv. Gola during 2018-19 and 2019-20 to study the effect of plant growth regulators and nutrients. Results revealed that application of NAA @ 50 ppm significantly influenced the fruiting attributes viz., fruit set, fruit drop and fruit retention and physico-chemical attributes of ber plant whereas maximum physical attributes viz., fruit diameter, fruit weight, pulp weight, pulp: stone ratio, fruit yield and leaf area were recorded with application of GA3 @ 50 ppm. Similarly, among nutrients application of K2SO4 @ 2 per cent significantly increased the yield attributing characters and fruit yield of ber. Apportioning the combined spray of GA3 @ 25 ppm applied with K2SO4 @ 2 per cent is worth recommendable for farmers of semi-arid region of Rajasthan as it fetched comparable fruit yield, net returns and benefit:cost ratio from ber crop.