Grain yield performance of durum wheat germplasm under Iranian dryland and irrigated field conditions.

Book Title: NA
Year Published: 2002
Month Published: NA
Author: Arzani, A.
Book Group Author: NA

Durum wheat (Triticum turgidum var. durum [T. durum]) is traditionally grown in the dryland and irrigated regions of western Iran. Limited water availability is the most common stress that affects farmers in marginal environments of central and western Iran. In the present study, a total of 450 durum wheat genotypes were evaluated for plant characteristics contributing to grain yield and plant adaptation under both rainfed and irrigated field conditions. The study was conducted during the 1997-98 and 1998-99 growing seasons at four sites: Abarkoh and Isfahan located in the central region, and Ilam and Mehran located in the western region of Iran. The criteria used were heading date, days to maturity, plant height, 1000 grain weight, number of grains per head, number of heads per m-2, and grain yield. Variation among genotypes for plant height, developmental stages, grain yield, and grain yield components was evident and genotype responses to drought stress under dryland field conditions varied from those of non-stress conditions. Some exotic genotypes combined outstanding yield, plant height, and grain yield components and represented extremely valuable germplasm sources to broaden the local genetic base. The genotypes 'Oste/Gata' at Isfahan (9030 kg/ha), 'Chen/Altar 84' (8700 kg/ha) at Abarkoh, and 'Sooty 4' (7000 kg/ha) at Mehran produced the highest grain yield under irrigated conditions. The genotype 'Nelly-1' produced the highest grain yield (1762 kg/ha) under water stress at Ilam.

Pages: 9 - 18
Volume: 34
Number: 1
Journal: SABRAO Journal of Breeding and Genetics
Journal ISO: NA
Organization: NA
Publisher: NA
ISSN: 1029-7073

adaptation, crop yield, drought, drought resistance, geneticvariation, genotypes, germplasm, irrigation, water stress, yieldcomponents, Triticum durum, Triticum, Poaceae, Cyperales,monocotyledons, angiosperms, Spermatophyta, plants, eukaryotes, droughttolerance, genetic variability, genotypic variability, genotypicvariation, watering, Field Crops (FF005) (New March 2000), PlantBreeding and Genetics (FF020), Plant Water Relations (FF062), PlantProduction (FF100), Environmental Tolerance of Plants (FF900), SoilWater Management (Irrigation and Drainage) (JJ800) (Revised June 2002)[formerly Soil Water Management]

Source: EBSCO
Series Number:
Document Type:
Subject Category: