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<article>
<title><b>Delineation of genetic diversity in the advance breeding lines developed through systematic breeding in wheat (<i>Triticum aestivum </i>L.)</b></title>
<authors>Yogender Kumar, Somveer Nimbal , M.S. Dalal</authors>
<keywords>Wheat, genetic diversity, cluster, grain yield, breeding line </keywords>
<pages>76-84</pages>
<issue_number>4 (2) 2020    </issue_number>
<issue_period>April 2020</issue_period>
<abstract>An experiment was conducted at CCS HAU, Regional Research Station, Bawal (Haryana) during <i>rabi</i> 2013-14 with 46 bread wheat advance lines which were developed through systematic breeding to assess the genetic diversity for yield and its traits. The lines were grouped into eight distinct clusters and distribution pattern indicated that maximum number of lines were grouped into the clusters I and V with 8 genotypes each followed by cluster VII with 7 genotypes. The inter-cluster distance in most of the cases was higher than the intra-cluster distance, indicating wider genetic diversity among the advance lines of different groups. Genotypes grouped into cluster III showed maximum intra cluster diversity whereas highest inter cluster diversity was exhibited by clusters II and V followed by cluster II and IV, showing wide diversity among the groups. The genotypes P 12714, PBW 343, P12186, P 12876, P 12864 proved to be promising for one or more different characters. From cluster mean performance, the advanced lines in cluster III, IV and I deserve consideration for their direct use as parents in hybridization programmes to obtain high heterotic response and thus better segregants for high grain yield in bread wheat.</abstract>
</article>
