Evaluation of stress mitigating chemicals and their response on productivity, profitability and plant nutrient status of coriander (Coriandrum sativum L.)

Abstract

A field experiment was conducted during rabi of 2016-17 at Agronomy farm, S.K.N. College of Agriculture, Jobner (Jaipur) to study the effect of stress mitigating chemicals on coriander varieties (Coriandrum sativum L.) grown on irrigated loamy sand soil of semi-arid eastern plain zone of Rajasthan. The experiment consisting of four varieties (RCr-435, RCr-728, RCr-436 and RCr-41) and six stress mitigating chemicals (water sprayed control, salicylic acid @ 100 ppm, thiourea @ 500 ppm, kinetin @ 30 ppm, DMSO @ 78gha-1 and TGA @ 100 ppm at 40 and 60 DAS) making 24 treatment combinations. The variety RCr-728 significantly increased seed, straw and biological yields (14.82, 42.03 and 56.85 qha-1), total nitrogen, phosphorus and potassium uptake and higher net returns (Rs 45240 ha-1) over RCr-41, RCr-435 and RCr-436. Foliar application of thiourea 500 ppm produced significantly higher seed (15.19 q ha-1) and straw yield (42.22 q ha-1), total uptake of nitrogen, phosphorus and potassium and also obtained significantly highest net returns (Rs 47376 ha-1) as compared to water spray and other stress mitigating chemicals.