EVALUATION OF AGRONOMIC TRAITS FOR YIELD AND YIELD COMPONENTS IN WHEAT GENOTYPES WITH RESPECT TO PLANTING DATES

Fourteen genotypes including two checks varieties were evaluated for agronomic traits and their adaptability study on two different sowing dates at the experimental farm of Nuclear Institute for Food and Agriculture, Tarnab, Peshawar, Pakistan. The combined analysis of variance showed that there were significant variations among genotypes, dates of sowing and their interaction. Based on regression coefficient (b_i ) and mean square deviation from linear regression  for the individual genotypes regarding the parameters Viz. plant height, spike length, spikelets spike-¹, number of tillers plant-¹ and grain yield (kg) plot-¹ under consideration, most of the genotypes responded negatively with respect to all the traits under late planting condition. However, some of the genotypes such as CT-09117, CT-09137, CT-09141 and SRN-09111 revealed stable performance with respect to the yield assorted traits. They have been recommended for the late planting conditions where sowing is delayed due to some unavoidable circumstances than the other elite wheat genotypes .