Estimates of combining ability for grain yield and other agronmic traits in yellow maize hybrids
Aboyousef, H., Gamea, H., Mohamed, A. (2018). Estimates of combining ability for grain yield and other agronmic traits in yellow maize hybrids. EKB Journal Management System, 1(3), 113-121. doi: 10.21608/aasj.2018.56372
H. A. Aboyousef; H. A.A. Gamea; A. M.El. Mohamed. "Estimates of combining ability for grain yield and other agronmic traits in yellow maize hybrids". EKB Journal Management System, 1, 3, 2018, 113-121. doi: 10.21608/aasj.2018.56372
Aboyousef, H., Gamea, H., Mohamed, A. (2018). 'Estimates of combining ability for grain yield and other agronmic traits in yellow maize hybrids', EKB Journal Management System, 1(3), pp. 113-121. doi: 10.21608/aasj.2018.56372
Aboyousef, H., Gamea, H., Mohamed, A. Estimates of combining ability for grain yield and other agronmic traits in yellow maize hybrids. EKB Journal Management System, 2018; 1(3): 113-121. doi: 10.21608/aasj.2018.56372

Estimates of combining ability for grain yield and other agronmic traits in yellow maize hybrids

Archives of Agriculture Sciences Journal
Article 8, Volume 1, Issue 3, December 2018, Page 113-121  XML PDF (329.64 K)
Document Type: Research article
DOI: 10.21608/aasj.2018.56372
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Authors
H. A. Aboyousef1; H. A.A. Gamea1; A. M.El. Mohamed2
1Maize Research Department, Field Crops Research Institute, Agricultural Research Center, Giza, Egypt
2Agronomy Department, Faculty of Agriculture, Minia University, Minia, Egypt
Abstract
Nineteen yellow maize (zea mays L.) inbred lines were top crossed with two inbred lines testers; GZ 658 and SD 3120 in season 2015. In 2016 summer season, these 38 crosses were evaluated in a randomized complete blocks designs experiment with four replications at two locations; Sakha and Sids, Agriculture Research Center, Egypt. Locations mean square were highly significant for all traits. Mean squares of crosses and their partitions (lines, testers and lines x testers) showed highly significant for all traits under this study except, testers mean square for ear height and ear diameter and lines x testers for ear height and ear length. The additive and additive x additive gene actions played more important in the inheritance traits; days to 50% silking, ear length, ear diameter and grain yield, while, the non- additive gene actions in the inheritance traits pant and ear height.The inbred lines (L1, L7 and L14) and the tester GZ 658had desirable positive and significant (g^i) for grain yield (ard/ fad) (ardab (ard) =140 kg, faddan (fad) = 4200 m2). Five crosses:  L1 x Gz 658 (35.86 ard/ fad), L2 x Gz 658(34.86 ard/ fad), L7 x Sd 3120 (35.66 ard/ fad), L14 x Gz 658 (35.20 ard/ fad) and L15 x Gz 658 (34.79 ard/ fad) had highly significant for grain yield (ard/ fad) more than the highest check Sc 168 (30.13 ard/ fad).
Keywords
Zea mays; top cross; Combining ability; Genotype x environment; yellow maize
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