PJB-2007-270
STUDY OF GENETIC PARAMETERS IN SEGREGATING POPULATIONS OF SPRING WHEAT
SHOUKAT ALI MANGI, MAHBOOB ALI SIAL*, BASHIR AHMED ANSARI AND M. AFZAL ARAIN*
Abstract
The estimation of heritability of important agronomic characters has a great significance with selection for superior genotypes. A field experiment was conducted to evaluate 7 F4 progenies of bread wheat (Triticum aestivum L.), developed from 8 parental lines at the experimental field of Nuclear Institute of Agriculture (NIA) Tandojam. Six different yield contributing characters viz., plant height, number of tillers per plant, spike length, number of grains per spike, seed index (1000-grain weight) and grain yield per plant were studied. All the genotypes differed significantly (p>0.01) from each other for all the measured characters; which indicated the existence of genetic variability among the material studied. The progenies Marvi-2000 x Soghat-90 and Khirman x RWM-9313 have proven to be the best combiner progeny with potential to transfer the highest heritability (h2 b.s) associated with high genetic advance (GA) for yield and its related characters. Therefore these transgressive segregates could be selected towards the improvement of wheat crop.
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