Dergiler / Ekin Journal of Crop Breeding and Genetics / 2016 / Cilt: 2 - Sayı: 1

The Effect of Supplementary Irrigation on Leaf Area, Specific Leaf Weight, Grain Yield and Water Use Efficiency in Durum Wheat (Triticum durum Desf.) Cultivars

The Effect of Supplementary Irrigation on Leaf Area, Specific Leaf Weight, Grain Yield and Water Use Efficiency in Durum Wheat (Triticum durum Desf.) Cultivars

Ali Guendouz, Nadjim Semcheddine, Lyes Moumeni, Miloud Hafsi

Sayfa
82–89
DOI
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Abstract

The main aim of the present study is to understand the impact of irrigation on Leaf area, SpeciŞc Leaf Weight, Grain yield and Water use efŞciency. Ten durum wheat (Triticum durum Desf.) genotypes of diverse origin were evaluated under two conditions (Irrigated and non irrigated conditions). After flowering, ten flag leaf of each plot were cut for measuring the length, width and mass of leaf. Leaf area (LA) while SpeciŞc Leaf Weight (SLW) was measured mathematically . Water use efŞciency of yield was calculated using the following equation: WUE evapo-transpired water. In this study the difference between Leaf area under stressed and non stressed condition equal 17.24%. In addition, water stress reduced the speciŞc leaf weight (41.86%). Irrigation condition affects positively the grain yield (12.42%) and negatively water use efŞciency (12.11%). WUEwas the highest with a deŞcit irrigation consisting of two-thirds of the water required at full irrigation (i.e. WUEfull irrigation was lower)