Saleh Saleh(1)*,Abdullah Al-Yousef(1),M.Shafik Hakim(2),Ahmad Shams Aldien Shaaban(3)
(1)General Community for Scientific Agriculture Research, Aleppo Research Center, Aleppo, Syria.
(2) Field Crop Dept., Faculty of Agriculture, University of Aleppo, Aleppo, Syria.
(3) Faculty of Technical Engineering, Aleppo University, Aleppo, Syria.
)*Corresponding author: Saleh Saleh, Email: Salehalsaleh989@gmail.com(
Abstract
The Research was conducted at western of Al Sfireh city site belonged to Agriculture Scientific Research Center of Aleppo, during 2015/2016 & 2016/2017 cropping seasons, The study aimed to evaluation behavior some grain yield traits of barley genotypes using diallel cross, therefore, the performance of seven barley genotypes. Three of them locals: Arabi Aswad (P1), Arabi Abyad (P2) & Furat 3 (P3), and four introduced: Alanda-01 (P4), Rihan-03 (P5), Arizona (P6) & Avit (P7) and there half di-allel hybrids. In the first season (2015/2016) the parent genotypes were planted at the end of November, and 10 spikes from each parental genotype were serialized and pollinated in one direction to obtain each hybrids group) half di-allel Crosse). So, 21 hybrids were obtained. In the second season (2016/2017) F0 and parental seeds were planted and estimated to the following traits spike length cm, number of grain / spike, grain weight / spike, , fertile tillering/plant. The results were analyzed using the computer program Genstat 12. The hybridization efficiency based on the mid parent and best parent and the tester cultivar, the general and specific combining ability, and general heredity were estimated. The study of hybrid vigor showed the influence of significantly and highly significantly hybrid vigor hybrid vigor in some hybrids for all studied trai. The general combining ability (GCA) study showed that the parent genotype P1 has a high GCA for traits of number of fertile tillers / plant, number of grains per spike The parental genotype P3 for the traits earliness and the number of fertile tillers / plant , spike length and of 1000 kernel weight. This means that these parental genotypes have the largest number of genes with additive effects which play a significant role in the heredity of the above mentioned traits . There were significant and highly significant values for the specific combining ability ( SCA) in several hybrids groups including groups resulting from parents have highly GSC such as group (p1*p3) for earliness traits and number of fertile tillers / plant and spike length and number grain per spike . and the genetic interaction in these groups form the ( additive x additive) type .Therefore these groups are considered as promising hybrids and it’s useful to select these hybrids and to follow them in the next segregating generations because the low genetic segregations. The heritability were high for the most studied traits which indicated to the importance of the total genetic variability in the inheritance of these traits .
Keyword: Diallel, Heterosis, Combining Ability, Heritability, Producti, Traits, Barley.
Full paper in Arabic: pdf