شماره مطلب: 408

Genetic improvement and agronomy for enhanced wheat competitiveness with weeds

نویسنده: 
D. Lemerle
انتشارات: 
CSIRO Publishing
تعدات صفحات: 
23
The rapid development of herbicide resistance in weeds, and environmental imperatives, have forced theconsideration of non-chemical tactics such as crop competition for weed management. This review of wheat–weedcompetition examines the plant traits associated with wheat competitiveness, and the opportunities for plantbreeding or manipulating crop agronomy to differentially favour the growth of the crop. Many studies have proventhat enhancing crop competitive ability can reduce weed seed production and crop yield loss, although a number ofdifficulties in conducting this research are identified and suggestions are made for improvement. It remains to beseen whether crop competitiveness will be considered as a priority by farmers and plant breeders. Farmers requireprecise information on the reliability of agronomic factors such as increased crop seeding rate or choice of varietyfor enhancing crop competitive ability in different environments. Plant breeders need to know which plant traits toincorporate in varieties to increase competitive ability. A thorough analysis of the benefits and costs of enhancingwheat competitiveness is needed. Competitive wheat crops should be available as part of reliable and economicalintegrated weed management packages for farmers.
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حجم: 
10.10MB

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