Genetic Variability Analysis in Different Genotypes of Soybean (Glycine max (L.) Merrill)
Twenty eight soybean genotypes were evaluated for eleven morphological characters during December, 2011 at Sher-e-Bangla Agricultural University, Dhaka, Bangladesh. The experiment was conducted to estimate the genetic variability in different soybean genotypes. The results of analysis revealed that all the characters like days to first flowering, days to 50% flowering, days to maturity, plant height (cm), number of branches per plant, number of pods per plant, pod length (cm), number of seeds per pod, seeds per plant, hundred seed weight (g) and seed yield per plant (g) were significantly affected due to various soybean genotypes. The days to first flowering ranged from 51.67 to 76.33, days to 50% flowering from 55.33 to 79.00, days to maturity from 105.33 to 132.00, plant height from 21.90 to 79.87 cm, number of branches per plant from 1.80 to 5.87, number of pods per plant from 24.62 to 59.57, pod length from 2.53 to 4.19 cm, number of seeds per pod from 2.37 to 2.66, seeds per plant 60.70 to 158.37, hundred seed weight from 6.27 to 16.57 g and seed yield per plant from 5.73 to 17.40 g. The genotypes F-85-11347, MTD-451, CHINA-1, PI-4174-75 and YESOY-4 remained the best among twenty eight genotypes studied in terms of studied traits. It was suggested that these superior lines may be focused and involved in future breeding programme for developing new high yielding soybean variety.