Studies on impact of water stress on seed yield of wheat genotypes

Abstract

The present experiment was carried out during rabi season of 2022-23 at experimental farm of B.T.C. College of Agriculture and Research Station Bilaspur, Indira Gandhi Krishi Vishwavidyalaya Raipur, Chhattisgarh, to Study the impact of water stress on seed yield of wheat genotypes. The experiment material considered, twenty-one (released, pre-released and pipeline) wheat genotypes with two checks MP 3288 & DBW 110 and two identified checks CG1036 & HI 1655. The objective of the study was to evaluate the water expense efficiency (WEE) of different wheat genotypes in four different water regimes respectively I1(only come-up irrigation), I2(come-up irrigation + one irrigation at CRI), I3(come-up irrigation + two irrigations each at CRI and at boot leaf stage) and I4 (fully irrigated with irrigation at CRI, tillering, jointing, booting, flowering, milking and dough stage) with two replications in randomized block design (RBD). Result revealed that genotype CG 2202, CG 2203 and CG 2212 recorded highly water efficient in water regime I1, CG 2203 in water regime I2 & I3 and DBW 110 in water regime I4.CG 2203, CG 2209 and CG 1036 are highly water efficient genotypes on the basis of mean performance over all the water regimes.