تقدير الاستقرارية الوراثية في الحنطة الخشنة

الملخص EN

This study was conducted to evaluate the performance of five a new durum wheat genotypes (Triticum durum .Desf): Berch-1, Syrian-4, Yousef-1, Lagmarb-1 and Aisrtan/3/ in addition of local variety (Om-Rabee) , under three seeding rates (120,140 and 160 Kg/HA) in 2003-2004 season for two locations, Mosul and Telafar using split plot arrangement in randomized complete Block design with three replications and two factors these are genotype and agricultural environmental which consist of six environments (The agreement between level of seeding rates and locations).

The characters studies were: number of days to 50% flowering , plant height, spike length, number of grains/spike, number of spikes/m2 , Biological yield , grain yield, harvest index, 1000grain weight and protein percentage .

The results were summarized as follows:- 1.

Pooled analysis of variance result revealed that the interaction between genotypes and location was significant at 1% for the all character except for number of days to 50% flowering and spike length which were significant at 5%, where as this interaction was not significant for number of spikes/m2.

2.

Eberhart & Russell (1966) analysis for the estimation of genotypes × Environment and determination of genotype stability revealed that the genotype, Syrian-4 was stable for all the characters studied following by Aristan/3/.

The last genotype was stable for all the characters except for biological and grain yield.