تقدير بعض المعالم الوراثية و الارتباط في أصناف من حنطة الخبز Triticuam Aestivum L. تحت ظروف محافظة واسط

الملخص EN

A field experiment was carried out at a farmer fields, Wasit governorate during 2015/2016 and 2016/2017 using nine varieties of bread wheat (Tmoze 1, Tmoze, 2, Maksebak, Sabah, Abu 95, Latifia, Eba 99, Abu Ghraib and Sham 6), to determine the effects of some genetic parameters on wheat varieties yield.

The results showed significant differences among the investigated cultivars, where Sabah cv.

was the best among others, since it gave highest yield (1163.3 and 1103.3kg / dunum).

Significant differences were also observed with Sabah cultivar, as it showed the highest high plant, number tillers, spike long, number of spike grains, weight of 1000 grin and yield total plant are mean of (109.66 cm, 16 teller/plant, 12 cm, 74.66 grin /spike, 62.66 gm ) and ( 108.3, 12.3, 12.66, 70.33, 60.66, respectively, during both growing seasons.

Environmental and phenotypic variation differences were significant, besides the values of the genetic and phenotypic factors were correlated to most characters and inheritance in the broad sense (0.96 - 0.99) and (0.93-0.99) for both seasons.

Yield and genetic improvement as a percentage of most genetic and phenotypic associations were significant in the desired direction of most yield, and therefore yield can be considered as an index selection in breeding and plant improvement programs