تقدير بعض المعالم الوراثية و قوة الهجين في حنطة الخبز(Triticumdk aestivum L. )‎

الملخص EN

Ahalf diallel cross consisting of ten possible combination among five wheat varieties (Ebaa 99,Abukraib 3,Alfeteh , A3103,Temooz 2) Wer studied using a randomized complete block design with three replication .

Parents and F1s were planted at the almusaib (Babylon),for studded genetic behavior for plant characters field and its component by evalution of parents and estimation of hetreosis ,general and specific combining ability and genetic parameters .The results may be summarized as follows : 1-General combining ability effects was positiv with desrible direction for most studied characters.The parents (3) show highly general combining ability effects for larg number of characters .Its show to additive gene action importance in these characters hetrosis .

2-Specific combining ability effects was negative with undesrible direction for most studied characters.

its show to dominance gene action importance in these characters hetrosis .

3-The hybrids(1x3), (2x3),(3x4) gave highly hybrid vigar and Specific combining ability effects and narrow sence hetrosis for yield and its components.

Its show to addtive gene action importance for parent (3) in these characters hetrosis and continous in selection and hybridization for parent (3) inorder to get new well segregation in next generation