Reem Saleem Ali*(1) Samir AL-Ahmad(2) Bolous Khoury(3)
(1). Agricultural Research Center of Latakia, General Commission for Scientific Agricultural Research (GCSAR), Damascus, Syria.
(2). Agricultural Research Center of Tartous, GCSAR, Damascus, Syria.
(3). Field Crops Department, Faculty of Agriculture, Tishreen University, Latakia, Syria.
(* Corresponding author: Eng. Reem Ali. E-Mail: m.reem.s.ali@gmail.com).
Received: 22/07/2018 Accepted: 08/10/2018
Abstract
The present research was conducted at the Agriculture Scientific Research Center in Latakia to estimate heterosis and potence ratio for plant height, ear height, ear length, number of rows per ear, 100 seeds weight, and grain yield. Thirty hybrids produced using Line × Tester method (10 × 3) in 2015 season which were evaluated during 2016 season. Results indicated that most of hybrids revealed desirable heterosis values compared with mid and better parents for all of studied traits. The hybrids (IL.21×IL.155), (IL.21× IL.358) and (IL.21× IL.1) showed highly significant and positive heterosis values relative to mid and better parent in grain yield. Results of potence ratio indicated that inheritance of grain yield, plant height, ear length and number of rows per ear, were controlled by over dominance for all of hybrids, while inheritance of ear height and 100 seeds weight were controlled by over dominance for most of hybrids and partial dominance for some of hybrid’s behavior.
Key words: Maize, Heterosis, Potence ratio, Grain yield.
Full Paper in Arabic: PDF