GENETIC STABILITY OF SOME VARIETIES OF DURUM WHEAT UNDER DIFFERENT ENVIRONMENTAL CONDITIONS

	GENETIC STABILITY OF SOME VARIETIES OF DURUM WHEAT UNDER DIFFERENT ENVIRONMENTAL CONDITIONS
journal of kerbala university
Article 1, Volume 7, Issue 3, 2011, Pages 461-470 PDF (0 K)
Abstract
Eight varieties of durum wheat: Leeds, Waha, Um-Rabie5, Azegar1, Um-Rabie3, Brashua, Cyprus1 and Korfila were used in an experiments conducted in four treatments of biofertilizer EM1 (represents four different environments), these treatments were (with out EM1, priming seeds in solution of EM1, spraying EM1 on plants and on soil before planting). The four sets of varieties were planted under rainfed conditions during 2007/2008 season using randomized complete block design with three replications to study their stability for the characters: grain yield per plant, 1000 grain weight, number of spikes per plant, number of grains per spike, harvest index and biological yield. Four methods were used to measure stability, regression coefficient, variance, coefficient of variability and the method outlined by (1). The results showed that mean square of varieties and genetic-environment interaction was significant at 1% level for all characters, while mean square for environments was significant at 5% level for grain yield per plant and biological yield only. Variations in stability values among varieties were recorded according to stability measurement methods used. The varieties Um-Rabie5, Um-Rabie3 and Cyprus1 showed a good stability for more than one important character.

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