Effect of tillage and bioregulators on physiological parameters and yield of rainfed chickpea (Cicer arietinum L.)

Abstract

This study was carried out to evaluate the “Effect of tillage and bioregulators on physiological parameters and yield of rainfed chickpea (Cicer arietinum L.)” at Rani Lakshmi Bai Central Agricultural University, Jhansi, UP, during Rabi season of 2020-21 in loamy soil. The experimentation was laid out in Split Plot Design with three levels of tillage treatments in main plots viz, CT, ZT and ZT+R. and five levels of bioregulators in sub-plot applied at flower initiation and pod filling stage. Among tillage practices ZT+R was found superior over ZT and CT treatment with respect CGR, grain yield and relative water content (RWC). Relative growth rate (mg/g/day) did not change significantly among tillage and bioregulators. Canopy temperature of plant significantly reduced under ZT+R treatment at 125 and 135 DAS over CT and ZT treatment. Foliar application of thiourea (1000 ppm) significantly reduced plant canopy temperature at 125 and 135 DAS. Foliar application of salicylic acid (50 ppm) treatment significantly increased the relative water content, grain yield and crop growth rate in chickpea over control. Interaction effect showed that KNO3 (2%) had significantly highest grains yield (12.5 q/ha) in ZT+R treatment as compared to ZT and CT treatment.