Influence of water deficit stress on wheat grain yield and proline accumulation rate.

Book Title: NA
Year Published: 2010
Month Published: NA
Author: Maralian, H. ; Ebadi, A. ; Didar, T. R. ; Haji-Eghrari, B.
Book Group Author: NA
Abstract:

The study of physiological responses of different wheat varieties to water stress could be a useful tool to understanding of the mechanisms of drought resistance. This field study was conducted to evaluate the effect of water deficit stress on proline accumulation rate and wheat grain yield at Iran in 2008. A bread wheat (line N84-12) was evaluated by contrasting irrigation regimes (well-watered) (control condition), water deficit stress before tillering stage (T1) and after heading stage (T2). The experiment was carried out using a randomized complete block design (RCBD) with three replications. To impose water deficit stress, plants wasn't irrigated before T1 and after heading T2. The analysis of variance showed that water deficit stress significantly affected grain yield, straw yield, proline accumulation rate and harvest index (HI) in P≤0.01. The highest proline accumulation rate was observed under T2 condition and grain yield was decreased by water deficit stress compared with control condition.

Pages: 286 - 289
URL: http://0-search.ebscohost.com.catalog.library.colostate.edu/login.aspx?direct=true&AuthType=cookie,ip,url,cpid&custid=s4640792&db=lah&AN=20103116216&site=ehost-live
Volume: 5
Number: 4
Journal: African Journal of Agricultural Research
Journal ISO: NA
Organization: NA
Publisher: NA
ISBN: NA
ISSN: 1991-637X
DOI: NA
Keywords:

analysis of variance, cereal grains, crop yield, drought,drought resistance, effects, harvest index, irrigation, physiology,plant physiology, proline, responses, statistical analysis, straw,stress, tillering, varieties, water deficit, water stress, wheat,yields, Iran, plants, Triticum, Triticum aestivum, Triticum, Poaceae,Cyperales, monocotyledons, angiosperms, Spermatophyta, plants,eukaryotes, West Asia, Asia, Middle East, Developing Countries,Threshold Countries, drought tolerance, statistical methods, varianceanalysis, watering, Plant Production (FF100), Natural Disasters (PP800),Meteorology and Climate (PP500), Environmental Tolerance of Plants(FF900), Plant Water Relations (FF062), Soil Water Management(Irrigation and Drainage) (JJ800) (Revised June 2002) [formerly SoilWater Management], Plant Physiology and Biochemistry (FF060),Mathematics and Statistics (ZZ100), Field Crops (FF005) (New March 2000)

Source: EBSCO
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