Effect of water stress on yield and yield components of semi-dwarf bread wheat (Triticum aestivum, L.).

Book Title: NA
Year Published: 2009
Month Published: NA
Author: Sial, M. A. ; Dahot, M. U. ; Arain, M. A. ; Markhand, G.S. ; Mangrio, S. M. ; Naqvi, M. H. ; Laghari, K. A. ; Mirbahar,A. A.
Book Group Author: NA
Abstract:

Twenty-one drought-tolerant genotypes of wheat developed through hybridization and mutation breeding were evaluated along with four drought-tolerant check varieties viz., Chakwal-86, Margalla-99, Thori (awnless) and Sarsabz under water stress conditions. Four experiments having 4 different irrigation treatments viz., single, two, three and four were conducted at NIA, Tando Jam. Observations on morphological (plant height, 1000-grain weight, grain yield), phenological (days to heading, days to maturity, grain filling period) and meteorological parameters were recorded. Genotype NIA-8/7 produced significantly the highest 1000-grain weight (37.9, 41.7, 42.0, 45.5 g) at single, two, three and four irrigations respectively than other genotypes including check varieties; hence more tolerant to water stress conditions. Ten genotypes viz., BWM-3, NIA-8/7, 25/1, MSH-14, MSH-17, MSH-36, BWS-77, BWS-78, BWM-47 and Khirman produced higher grain yield (>3500 kg/ha) with two irrigations; indicated tolerance to water stress environments.

Pages: 1715 - 1728
URL: http://0-search.ebscohost.com.catalog.library.colostate.edu/login.aspx?direct=true&AuthType=cookie,ip,url,cpid&custid=s4640792&db=lah&AN=20103010411&site=ehost-live
Volume: 41
Number: 4
Journal: Pakistan Journal of Botany
Journal ISO: NA
Organization: NA
Publisher: NA
ISBN: NA
ISSN: 0556-3321
DOI: NA
Keywords:

crop yield, drought, drought resistance, genotypes, heading,hybridization, irrigation, maturity, mutations, plant height, plantwater relations, water stress, wheat, yield components, Triticum,Triticum aestivum, Triticum, Poaceae, Cyperales, monocotyledons,angiosperms, Spermatophyta, plants, eukaryotes, drought tolerance,watering, Plant Production (FF100), Environmental Tolerance of Plants(FF900), Soil Water Management (Irrigation and Drainage) (JJ800)(Revised June 2002) [formerly Soil Water Management], Field Crops(FF005) (New March 2000), Plant Breeding and Genetics (FF020), PlantWater Relations (FF062)

Source: EBSCO
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