فعل المورثات في الحنطة الخشنة (Triticum durum Desf.)‎

الملخص EN

Complete diallel crosses among seven durum wheat genotypes (Triticum durum Desf.) were used in Randomized Complete Block Design with three replications to study the gene action for traits number of days to 50% flowering, plant height, number of spikes / plant, spike length, number of grains / spike, biological yield/plant, grain yield / plant, harvest index, 1000-grain weight and protein percentage.

The diallel crosses were analyzed by using Hayman (1954) method.

The results revealed that each of additive and dominant variances was important for all characters except 1000-grain weight and protein percentage, there is Uni-directional dominant effect for harvest index and also there is scattering in dominant alleles distribution for all characters except biological yield / plant and harvest index , there is dominant case in some single hybrids barring others for all characters except harvest index , and also there is maternal effects for all characters except for 1000-grain weight .

Diversity in reciprocal hybrids not belong to maternal effects for all characters was observed.