ABSTRACT

In the present investigation forty inbred lines of maize procured from AICRP on Maize, Kolhapur was evaluated in Randomized Block Design during kharif, 2014. The D2 values ranged from 125.88 to 1664.64. All the fourty inbreds evaluated were grouped into six clusters in which cluster I accommodating maximum 15 inbreds followed by cluster II and III with 8 inbreds and cluster IV with 7 inbreds. The cluster V and VI were monogenotypic indicating wide divergence from other clusters. The maximum intra-cluster distance was observed in the cluster IV (212.86) followed by cluster III (174.24) and cluster II (131.56), suggesting that inbreds present in these clusters possesses varied genetic architecture and might have originated from different genetic pool. The maximum inter cluster distance were observed between cluster V and cluster VI (1664.64) followed by cluster III and cluster VI (982.19) and cluster IV and cluster VI (804.85), indicating wide divergence among the clusters, which suggested that the genetic architecture of the inbreds in one cluster differ entirely from those included in the other cluster. On the basis of inter cluster distances, cluster means, per se performance observed in the present study, inbreds QMI-1427, QMI-1464, QMI – 1455, QMI -1457, QMI-1440, QMI-1432, QMI-1444,QMI-1437, QMI-1461 were found to be promising, suggested for future breeding programme. Keywords: Inter and intra cluster, divergence, inbreds, monogenotypic maize

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https://doi.org/10.31032/IJBPAS/2019/8.3.4668