SummaryThe 2 species G. hirsutum and G. arboreum were crossed and triploid hybrid (AAD) was developed as a first step of crossing. The triploid is sterile and its hybridity was confirmed with morphological traits and DNA based SSR markers. The chromosome analysis at metaphase-I exhibited 13AA bivalents and 13D univalents at most of the PMC's studied which also confirmed its triploid nature. The mean chromosome pairing association was recorded as 12.90% (univalent), 10.45% (bivalent), 0.45% (trivalent), and 0.48% (tetravalent). The formation of multivalents depicted genome association between 2 species. The further utility of synthesized triploid with respect to the development of CLCuV resistant introgression genotypes is discussed

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The breeding values of six linseed genotypes viz; LS-1, Chandni, LS-53, LS-62, LS-13 and P-250 were determined in a half diallel experiment using combining ability analysis for seed yield arid five components of seed yield. Significant General Combining Ability (GCA) effects and Specific Combining Ability (SCA) effects were noted for all traits. LS-53, Chandni and IS-1 displayed positive GCA effects for seed yield per plant. LS-53 and Chandni also showed desirable GCA effect for number of branches per plant and number of capsules per plant.

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