Effect of plant growth regulators and nutrients on fruit drop and yield of Kinnow mandarin

Abstract

The experiment entitled “effect of plant growth regulators and nutrients on fruit drop and yield of Kinnow mandarin” was carried out at Chaudhary Farm House, Village Malapur, Hisar during 2015-2016 to assess the effect of plant growth regulators and nutrients on fruit drop and yield of Kinnow mandarin. The treatments comprising of 2, 4-D 10, 15 and 20 ppm, GA3 10, 15 and 20 ppm, K2SO4 1%, 1.5% and 2% and ZnSO4 0.25%, 0.50% and 0.75% along with control were laid out in randomized block design with three replications. The result of investigation indicates that the foliar application of 2, 4-D 20 ppm was found quite effective in increasing final fruit retention and minimizing fruit drop. Fruit weight was recorded maximum in K2SO4 2% and number of fruits and yield were found maximum in treatment 2, 4-D 20 ppm.