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GrainGenes Reference Report: CRS-42-111

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Reference	CRS-42-111
Title	Breeding opportunities for increasing the efficiency of water use and crop yield in temperate cereals
Journal	Crop Science
Year	2002
Volume	42
Pages	111-121
Author	Richards RA Rebetzke GJ Condon AG van Herwaarden AF
Abstract	Summary: Genetic advances in grain yield under rainfed conditions have been achieved by empirical breeding methods. Progress is slowed, however, by large genotype x season and genotype x location interactions arising from unpredictable rainfall, which is a feature of dry environments. A good understanding of factors limiting and/or regulating yield now provides us with an opportunity to identify and then select for physiological and morphological traits that increase the efficiency of water use and yield under rainfed conditions. The incorporation of these traits into breeders' populations should broaden their genetic base. It also may lead to faster selection methods and selection for the traits may result in correlated gains in yield. Here, we undertake a review of factors that limit yield in rainfed environments and discuss genetic opportunities and genetic progress in overcoming them. The examples given are for wheat (Triticum aestivum L.), but the principles apply to all cereal crops grown in dry environments
External Databases	Pubmed: 11756261
Keyword	[ Hide all but 1 of 26 ] breeding carbon-isotope discrimination crop yield dry-matter production dryland wheat dwarfing genes environment field-grown wheat genotype grain yield lead mediterranean-type environment method morphological traits new south wales population rain-fed environments review selection temperate cereals trait triticum triticum aestivum water water use yield

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