PJB-2016-193
GENETIC VARIABILITY, HERITABILITY AND GENOTYPE X YEAR INTERACTION FOR MORPHO-YIELD TRAITS IN SOYBEAN
MUHAMMAD IRSHAD1, FARHATULLAH1*, NADIA KHAN1 AND SANIA BEGUM
Abstract
This research was conducted at The University of Agriculture, Peshawar during soybean cropping seasons, 2011 and 2012. The plant material comprised of parental lines of US germplasm (US), landraces from Kurram Agency (KA) and lines collected from Plant Genetic Resource Institute (PG) NARC Islamabad soybean genotypes. These lines were studied for genetic variability, heritability and genotype x year interaction (GEI), using RCB design with two replications. Data was recorded on leaf area, days to flowering, and maturity, plant height, 100 seed weight and seed yield plant-1. Analysis of variance showed significant differences among the genotypes for 100 seed weight, DPI, days to flowering, plant height, maturity, seed yield plant-1, and leaf area. GEI was significant only for plant height, seed yield plant-1 and leaf area. Based on mean performance, local genotype KA1-2 initiated flowers early (62 days) and whereas parental lines of US08 produced pods early (87days) in first growing season 2011. Local genotype KA1-2 matured early (200 days) in 1st growing year 2011. Local genotype KA8-3 during 2nd growing season, 2012 was taller one (353 cm). Genotype PG003765 produced the highest seed yield plant-1 (92.7 g) during first growing year. Maximum seed weight of 35.71 g was recorded for exotic genotype US08 in 1st growing year. High broad sense heritability estimation was in the range of 73.3 to 97.2 for days to maturity and 100 seed weight respectively. Genotypes with maximum seed weight, and seed yield plant-1 were US08 (exotic), and PG 003765, respectively. These genotypes could be used in the future breeding programs to develop soybean genotypes having high yield and improved oil content.
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