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Effects of Gradual Water Deficit Stress on Phenological and Morphological Traits in Chickpea （Cicer arietinum L.）

Journal of Agricultural Science and Technology 2010年第5期4卷 95-100页

作者： N. Niari Khamssi K. Ghassemi Golezani S. Zehtab A. Najaphy Department of Agronomy and Plant Breeding Faculty of Engineering Islamic Azad University Kermanshah Branch ***lr an Department of Agronomy and Plant Breeding Faculty of Agriculture Tabriz University Tabriz *** Iran Department of Agronomy and Plant Breeding Faculty of Agriculture Razi University Kermanshah *** Iran

The aims of this study were to investigate the effect of gradual water deficit stress on some phonological and morphological traits and grain yield of desi and kabuli chickpea cultivars. This study was carried out in 2007 and 2008, to evaluate responses of three chickpea cultivars （Hashem and Arman from kabuli and Pirooz from desi type） under well watering （I1： 70mm evaporation from class A pan）, gradual water deficit （12 and 13： 70→90→ 110→130 and 70→100→130mm evaporation from class A pan, respectively） and severe water stress （14： 130mm evaporation from class A pan）. Result showed that days to flowering and plant height were decreased, as water limitation increased. This reduction was significant under gradual water stress （I2 and I3） and Severe water deficit （I4）, compared with control （I1）. There were no significant differences in grain filling period and grain yield among I~, I2 and I3 irrigation treatments. No significant differences in days to physiologic maturity.and number of sub branches were recorded among irrigation treatments. Interactions of year×cultivar for days to physiologic maturity. grain filling period and grain yield （P≤0.01） and for days to flowering and plant height （P≤0.05） were significant. The superiority of Arman in producing comparatively greater grain yield could be attributed to higher grain filling period of this cultivar in both years.

关键词： Chickpea gradual water deficit grain filling period grain yield physiologic maturity.

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