NUMBER OF TESTERS SUITABLE FOR ESTIMATION COMBINING ABILITY OF YELLOW MAIZE INBRED LINES | ||||
| Egyptian Journal of Plant Breeding | ||||
| Article 10, Volume 25, Issue 1, June 2021, Page 145-158 PDF (413.57 K) | ||||
| Document Type: Original research | ||||
| DOI: 10.12816/ejpb.2021.220557 | ||||
 View on SCiNiTO | ||||
| Abstract | ||||
| Information about combining ability is important for working breeding strategies. The objective of this study was to determine number of testers to be used for achieving reliable combining ability effects of tested inbred lines. Twenty three yellow maize inbred lines were crossed with four tester lines in a line x tester mating design in 2018 season. The 92 crosses and the check hybrid SC 168 were evaluated at two locations (Sakha and Sids Agricultural Research Stations) in 2019 season. The results indicated that more than one tester might be ideal for screening a large number of inbred lines. The best inbred lines for general combining ability effects were L8 followed by L6 and L13. The best hybrids for grain yield were L6 x Sk4, L8 x Sk4 and L8 x Sk2, in a descending order. | ||||
| Keywords | ||||
| Line x tester; Mating design; Rank correlation | ||||
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