PJB-2010-184
HERITABILITY STUDIES FOR GRAIN YIELD AND YIELD COMPONENTS IN F3 SEGREGATING GENERATION OF SPRING WHEAT
SHOUKAT ALI MANGI, MAHBOOB ALI SIAL1, BASHIR A. ANSARI, M. AFZAL ARAIN1, K. A. LAGHARI1AND AMEER AHMED MIRBAHAR2
Abstract
Heritability estimates provide information about the extent of which a particular genetic character to be transmitted to the successive generations. Heritability studies were conducted in four F3 segregating populations originated through cross combinations of 6 wheat varieties/ advanced lines i.e., Sarsabz, Soghat-90, Marvi-2000, SI-91195, SD-1200/14 and IB-25/99 at the Nuclear Institute of Agriculture, Tando Jam during 2004-05. Genetic variance, environmental variance, heritability percentage in broad sense and genetic advance were estimated for different grain yield and yield contributing traits. The highest heritability (83.09%) associated with genetic advance (55.39) for grain yield was observed in cross combination of Marvi-2000 x Soghat-90 followed by Marvi-2000 x SI-91195 (80.0%; GA: 39.9), revealed good parental combination for effective selection for high yielding plants in segregating population.
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