Genetic Diversity for Yield and Yield Contributing Characters of Short Statured Maize Inbred Lines
- 1 Plant Breeding Division, Bangladesh Agricultural Research Institute, Gazipur, Bangladesh
- 2 Dept. of Genetics and Plant Breeding, Bangladesh Agricultural University (BAU), Mymensingh, Bangladesh
- 3 Plant Breeding Division, Bangladesh Agricultural Research Institute, Gazipur, Bangladesh
- 4 Plant Breeding Division, Bangladesh Agricultural Research Institute, Gazipur, Bangladesh
- 5 Plant Breeding Division, Bangladesh Agricultural Research Institute, Gazipur, Bangladesh
Abstract
Genetic diversity is one of the useful tools to select appropriate lines for hybridization. Twenty short - statured maize inbred lines were taken for present study , which were collected from CIMMYT India and Mexico through Plant Breeding Division, Bangladesh Agricultural Research Institute (BARI), Gazipu r. This experiment was conducted from November 2015 to April 2016 t o identify parental lines to produce single cross short statured maize hyb rids. From th e genetic diversity studies , the importance of both additive and non-additive gene actions for the expression of yield and yield contributing characters were found. Values of vector I and II revealed that both the vectors had positive values for date of silking, plant height, rows/cob, grains/row and yield. These results indicated that these five characters had highest contribution towards divergence. Based on the relative magnitude of D 2 values; 20 inbred lines were grouped into five clusters. Seven inbred lines were selected on the basis of genetic diversity and per se performance which will be crossed separately in a half - diallel fashion to develop hybrids.
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