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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
The present investigation was under taken for 10 lines and 3 tester using line x tester mating design consisted of 46 entries including 10 lines, 3 testers, 30 hybrids and three checks viz., CSV 23, CSV 27 and CSH25. These were evaluated in RBD with three replications during kharif 2015 in four environments created by using different spacing viz., 22.5 x 5 cm (E1), 30 x 10 cm (E2), 45 x 10 cm (E3) and 60 x 10 cm (E4) at Instructional farm Rajasthan college of Agriculture, Udaipur in randomized block design with three replications. Some of the parents out crossed the limit of best checks for dry fodder yield, green fodder yield, protein content in grain and protein content in fodder in one or other environments. 24 crosses exhibited economic heterosis. Therefore these crosses may be identified as superior crosses for these characters. Significance of line, tester and line x tester mean square revealed that both additive as well as non additive variance were important in the inheritance of these characters. The contribution of line x testers sum of square was maximum in most of the characters in most of the environments. Three crosses L2 x T3, L6 x T3 and L1 x T3 having economic heherosis for grain yield in E2. Where cross L2 x T3 and L6 x T3 also having economic heterosis for dry fodder yield in E¬2. These crosses had good SCA effects and involving at least one good general combiner parent. This indicates superiority of F1 on account of accumulation of dominant genes. Finaly two dual purpose crosses ICSA 29004 × SPV 1822 (L2 x T3) and ICSA 29012 × SPV 1822 (L6 x T3) were identified for multi location testing as these were having economic heterosis more than 15 per cent for grain yield and dry fodder yield, good SCA, involving one good GCA parents, nicking in flowering in normal spacing environment and male parent taller than the female parent. Apart from above, grain purpose cross ICSA 29003 × SPV 1822 (L1 x T3) is also identified for multi location testing as it had very high economic heterosis for grain yield (56.65%) in medium spacing environment i.e.30 x 10 cm along with good nicking in flowering and taller male parent. This cross (ICSB 29003 × SPV 1822) also recommended for selection of transgressive segregants in segregating generations as this cross also having good SCA and involved both good general combiner parents.