TITLE

Evaluation of Some Morphological and Agronomical Traits of Rapeseed Cultivars in Response to Withhold Irrigation from Different Growth Stages

AUTHOR(S)
Rad, A. H. Shirani; Abbasian, A.; Farahani, H. Aliabadi
PUB. DATE
July 2011
SOURCE
Advances in Environmental Biology;Jul2011, Vol. 5 Issue 8, p2540
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Water deficit is an important factor limiting crop production worldwide. Drought stress can be managed by improving the availability of soil moisture conserved and selecting drought tolerant genotypes. In order to evaluate water deficit effects on morphological and agronomical traits in rapeseed cultivars, an experiment was conducted at research farm of the Seed and Plant Improvement Institute, Karaj, Iran (35°59'N, 50°75E and 151 m altitude) over two successive years (2007-2009). The experiments were arranged in a split-plot on basis of randomized completely block design (RCBD) (water limitation treatments as a main plots and cultivars as a sub-plot) with three replications. The result of this experiment showed that rapeseed cultivars and water stress significantly affected on all traits except oil content, 1000-seed weight and harvest index. The least reduction of seed yield in water deficit conditions has produced in Zarfam cultivar. Also, this cultivar had lower decreasing of oil yield in stress conditions and it has the best adaptation in water deficit conditions. These results may be due to the reduction of photosynthesis and chlorophyll content.
ACCESSION #
70377563

 

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