تقدير قدرة الاتحاد في الحنطة الخشنة (Triticum durum Desf.)‎

Abstract EN

Seven durum wheat entries (Triticum durum Desf.) were used in this study .

Six of them (Omgenil-3, Albit-9, Azeghar-2, Azul-5, Mna-1/Rfm-7, 1346/Lahn /Bcr/LKS4) introduced from (ICARDA) , in addition to the local growing variety (Waha) .

The studied traits were : No.

of days to 50% flowering , plant height, No.

of spikes per plant , spike length , No.

of grains per spike , biological yield per plant , grain yield per plant , harvest index , 1000-grain weight and protein percentage .

These traits were genetically analyzed using Method-1 , Fixed Model of Griffing (1956) .

Genotypes (Parents , F1s and reciprocals) were different at 1% significant level of probability for all the traits .

General combining ability variances were significantly different for No.

of days to flowering , plant height , No.

of spikes per plant , spike length , 1000-grain weight , biological yield per plant and protein percentage .

Specific combining ability variances were significantly different for plant height , No.

of spikes per plant , biological yield per plant , grain yield per plant , harvest index and protein percentage .

Reciprocal variances were significant for all the traits except for harvest index .

Albit-9 and Azul-5 were superior in their general combining ability effects over the others .

The crosses (Azeghar-2×Mna-1) , (Omgenil-3×Albit-9) , (Omgenil-3× Azegar-2) , (Albit-9×1346/Lahn) , (Albit- 9×Waha) were superior over the others in the specific combining ability effects for all the traits .