Determination of water requirements and response of wheat to irrigation at different soil moisture depletion levels.

Book Title: NA
Year Published: 2005
Month Published: NA
Author: Naeem, Mahmood ; Ahmad, R. N.
Book Group Author: NA

An experiment was conducted in Pakistan, to determine water requirement and response of some wheat cultivars to irrigation at different soil moisture depletion (SMD) levels. Wheat genotypes AS2002, SH2002, Inqlab 91 and Uqab 02 were subjected to irrigation at 50 and 70% SMD levels. Moisture contents for irrigation were recorded from a root zone of 90 cm (from depths of 10-15, 15-30, 30-60 and 60-90 cm). Data on meteorological parameters such as temperature, rain, relative humidity and pan evaporation were also recorded. Rate of soil moisture depletion and pan evaporation showed a positive relationship with the temperature during the whole growing season. The amount of water applied to wheat at 50 and 70% SMD was 214.80 mm and 251.42 mm, respectively. Grain yield, harvest index and water use efficiency were greater when irrigation was applied at 50% SMD and was reduced at 70% SMD. SH2002 was the top yielder among the 4 cultivars tested at each level of irrigation.

Pages: 812 - 815
Volume: 7
Number: 5
Journal: International Journal of Agriculture and Biology
Journal ISO: NA
Organization: NA
Publisher: NA
ISSN: 1560-8530

crop yield, cultivars, harvest index, irrigation, plantwater relations, soil water, water requirements, water use efficiency,wheat, Pakistan, Triticum, Triticum aestivum, South Asia, Asia,Developing Countries, Commonwealth of Nations, Triticum, Poaceae,Cyperales, monocotyledons, angiosperms, Spermatophyta, plants, FieldCrops (FF005) (New March 2000), Plant Water Relations (FF062), PlantProduction (FF100), Soil Water Management (Irrigation and Drainage)(JJ800) (Revised June 2002) [formerly Soil Water Management]

Source: EBSCO
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