Study of some morphological traits, yield and yield components in advanced wheat genotypes under normal and water deficit stress

Subject Areas : crop production

bahman zekavati ¹

1 - دانشگاه آزاد اسلامي، واحد ميانه، دانشجوي كارشناسي ارشد زراعت، ميانه، ايران

Received: 2010-10-03 Accepted : 2011-07-11 Published : 2010-07-01

Keywords: Water stress, Wheat genotypes, Yield and yield components,

Abstract :

To evaluate some of morphological traits, yield and yield components in wheat genotypes under normal and water stress codition after anthesis, an experiment was carried out in Agriculture and Natural Research Station of Ardabil in 2008-2009. Then advanced winter and intermediate wheat genotypes obtained from this research station were evaluated in two separate experiments under normal irrigation and deficit irrigation after anthesis in a randomized complete block design with three replications. Significant differences were observed among genotypes in terms of grain number in spike. Genotypes No.6 and 10 had the highest amount of this trait (42.2 and 42.6, respectively). 1000 grains weigh decreased significantly under water stress, also the amount that were different significant among genotypes. The highest and lowest grain yields (6093.3 and 4819.4 Kg per hectare) were obtained by normal and water stress conditions, respectively. In terms of grain yield, the genotypes which had gain number per spike and 1000 grains weight in high value in both condition, had better yield in comparison with others.

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