Reem Al-Mansour *(1) and Zenab Tadbeer (2)
(1) Homs Research Center, General Commission for Scientific Agricultural Research, Syria.
(2) General commission for scientific agricultural research-Crops research administration, Syria.
(*corresponding author: Reem Al-Mansour-E-Mail: reemalmansour2@yahoo.com.)
Received:11/12/2023 Accepted:27/03/2024
Abstract:
Field experiment was conducted at Homs research center, General Commission for Scientific Agricultural Research during 2019, 2020 to estimate the general and specific combining ability for six inbred lines of maize, {P1 (IL-197, P2 (IL-90), P3 (IL-29), P4 (IL-200), P5 (IL-339), P6 (IL-239)}. The resultant hybrids were evaluated statistically by using a Randomized Complete Block Design (RCBD) with three replications. The significant variation for both general and specific combining ability of inbred lines and their resultant hybrids indicated the importance of both additive and non-additive gene actions in the inheritance of the number of days up to appear 50% of silking, plant height, cob height, grain yield, and harvest index. Also, results showed the predominance of additive gene action for plant height and harvest index. also, it appeared the predominance of non-additive gene action for grain yield and number of days to appear 50% of silking, cob height, and grain yield.
Keywords: Maize, General combining ability, Specific combining ability.
Full paper in Arabic: PDF