Abstract
Forty nine CIMMYT, India Maize inbred lines were characterized based on some morphological traits and grain yield. Genetic divergences of inbred lines of maize were estimated using D2 and principal component analysis. The genotypes under study fell into five clusters. The inter cluster distance were higher than intra cluster distance suggesting wider genetic diversity among the genotypes of different groups. The maximum intra cluster value was observed in cluster IV and minimum in cluster V. The inter cluster D2 values revealed that the maximum distance among the cluster. The highest inter cluster distance was observed between cluster II & I and the lowest inter cluster distance was illustrated in cluster III & I. The cluster means were higher for days to 50% tasseling, days to 50% sillking, plant height, ear height, cob length, number of rows per cob, number of grains per row in cluster IV; cob diameter and grain yield per plant was found higher in cluster II. It is expected that crossing of inbred lines belonging high to medium D2 values tend to produce high heterosis for yield.
Highlights
Maize (Zea mays L.) plays a significant role in human and livestock nutrition (food, feed, fodder, fuel and like medical and ornamental plant) in worldwide (Alahdadi et al 2011; Khodarahmpour, 2011)
Maize (Zea mays L.) plays a significant role in human and livestock nutrition in worldwide (Alahdadi et al 2011; Khodarahmpour, 2011)
Forty nine genotypes of maize collected from CIMMYT, India were grown in a completely randomized block design with three replications at Bangladesh Agricultural Research Institute, Gazipur 1701 (AEZ 28 and 24.00"N latitude and 900.25"E longitude) in the season of 2010-11
Summary
Maize (Zea mays L.) plays a significant role in human and livestock nutrition (food, feed, fodder, fuel and like medical and ornamental plant) in worldwide (Alahdadi et al 2011; Khodarahmpour, 2011). This table we can see that high to medium variation was found in days to 50% silking, grain yield per plant (g), 1000-seed weight, plant height (cm) and ear height (cm).
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