FACTORIAL MATING IN DURUM WHEAT (Triticum durum Desf.)
Mesopotamia Journal of Agriculture,
2012, Volume 40, Issue 0, Pages 145-156
AbstractEight new durum wheat genotypes (Triticum durum Desf.) were used in this study which were introduced from the International Center for Agricultural Research in the Dry Areas (ICARDA) , in addition to the two locally grown varieties; Waha and Um-Rabie . The entries were crossed according to factorial mating design (six males and four females) to get 24 crosses. The characters studied were number of days to 50 % flowering , plant height, spike length, Flag leaf area / cm2 , number of grains / spike, number of spikes / m2 , biological yield , grain yield , harvest index , 100-grain weight , protein content and ash contents . Male mean squares were significantly different for all the characters except for the number of days to 50 %, spike length, where as the female mean squares were significantly different for all the characters . Interaction between males and females was significant for all the characters except for the number of days to 50 % flowering and 100-grain weight .The ratio of the general to specific combining ability components for the males was less than one for all the characters except for the 100-grain weight, while this ratio was less than one for all the characters for females except for 100-grain weight and ash content . Two genotypes (Omgenil-8) and (Sebatel) Were superior in general combining ability effects for most characters. The hybrids, (Omgenil-8*Terbol), (Azul-5*Syrian-4) and (Um-Rabie*Maamouri-3) were superior in specific combining ability effects for most characters .
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