|Author:||Onyibe, J. E.|
|Book Group Author:||NA|
Field trials were conducted in Kadawa, Nigeria, to study the effect of irrigation regime (60, 75 and 90% Available Soil Moisture (ASM)) on the growth and yield of the recently introduced wheat cultivars Siete cerros and Pavon 76. The increase of irrigation regime from 60 to 90% ASM did not significantly affect most of the growth, yield and yield parameters. Each increase in irrigation regime, however, increased days to maturity, water use and thermal time but decreased water use efficiency. Pavon 76 produced superior grain yield than Siete ceros only in one season. Pavon 76 had a higher leaf area index, more tillers and spikes/m2 and larger grain size, but had shorter plants, lower grain weight and grain number per spike and matured earlier than Siete cerros. Irrigation level of 60% ASM is recommended for both varieties in the Sudan savanna ecology. At this ASM, the highest water use efficiency of 4.0-4.8 kg/mm/ha was obtained and grain yield was not significantly compromised. Positive and highly significant correlations between grain yield and attribute such as number of spike/m2, grain weight/spike, plant height and harvest index were observed.
|Pages:||45 - 58|
correlation analysis, crop yield, cultivars, growth, harvestindex, irrigation, leaf area index, plant development, plant height,plant water relations, soil water, spikes, tillers, varietal reactions,water use efficiency, wheat, yield components, Nigeria, Sudan, Triticum,Triticum aestivum, West Africa, Africa South of Sahara, Africa,Developing Countries, ACP Countries, Commonwealth of Nations, AnglophoneAfrica, East Africa, Least Developed Countries, Triticum, Poaceae,Cyperales, monocotyledons, angiosperms, Spermatophyta, plants,eukaryotes, cultivated varieties, LAI, soil moisture, watering, FieldCrops (FF005) (New March 2000), Plant Breeding and Genetics (FF020),Plant Physiology and Biochemistry (FF060), Plant Water Relations(FF062), Plant Production (FF100), Soil Water Management (Irrigation andDrainage) (JJ800) (Revised June 2002) [formerly Soil Water Management]