Analysis of Population Differences and Inheritance of Some Spike Characteristics in Bread Wheat

Abstract

This research was conducted to determine the genetic parameters played a role inheritance and differences of F-2 and F-3 population for some yield component in half diallel cross of wheat. Five wheat varieties (Flamura-85, Krasunia, Bezostaja-1, Pehlivan, and Sana) used as a material in research. F-2 seeds obtained from F-1 plants belonging from the half diallel crossing and F-3 seeds obtained from F-2 plants was sown randomized complete block design with three replication in Namik Kemal University Agricultural Faculty research area in 2008-2009 and 2009-2010 growing seasons. Spike length, spikelet number per spike, grain number per spike, grain weight per spike, spike harvest index, spike intensity and grain yield per parcel were investigated in this study. According to results, it was found that both additive and non additive gene effects play a role inheritance of traits examined. Over dominance was found for all traits. Since the narrow sense heritability was found small for each of these traits, be selected further generations would be useful. When the mean observation and combining ability values are evaluated together, Krasunia and Sana is suitable genotypes for increased to yield and yield components. According to mean observation and combining ability values, Krasunia x Pehlivan, Flamura-85 x Krasunia, Krasunia x Sana ve Pehlivan x Sana are promising crosses for all traits examined.