Author(s):

Amit Lakra, Ruth Elizabeth Ekka, SK Sinha, Kiran Tigga and Dinesh Thakur

Abstract: The present investigation was carried out during Rabi 2019-20 in a randomized block design (RBD) with 18 wheat genotypes to assess the genetic diversity for various morphological and quality traits. The data were recorded on days to 50% flowering, plant height, flag leaf length, number of productive tillers per square meter, peduncle length, spike length, spike weight, number of spikelets per spike, number of grain per spike, 1000 grain weight, days to maturity, biological yield, harvest index and grain yield. Based on D2–Statistics, 18 genotypes were grouped into five clusters. The highest inter-cluster distance was found between cluster II and V followed by II and III. This indicates that genotypes included in these clusters possess wide genetic diversity. On the basis of divergence and cluster mean it may be suggested that good recombinants could be obtained in crosses between genotypes of cluster V, II and III in varietal improvement programme. Thus, crosses between the genetically diverse genotypes of cluster II with genotype CG-1707, CG-611, CG-1907, CG-1909, CG-1043 and cluster V with genotypes like are CG-1906, CG-1926 and Cluster III CG-1931 are expected to exhibit high heterosis and are also likely to produce new recombinants with desired traits.

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