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Genetic progress in wheat yield and nitrogen use efficiency under four nitrogen rates
The adaptation and performance of CIMMYT's bread wheat germplasm (Triticum aestivum L.) under conditions of low N fertility have been questioned because they were developed under medium-high levels of N fertility. The ...
Agronomic effects from chromosome translocations 7DL.7Ag and 1BL.1RS in spring wheat
In hexaploid wheat (Triticum aestivum L.) disease resistance genes transferred hom alien sources are often associated,vith undesirable traits. Replicated trials using near-isogenic lines of spring wheat 'Seri 82' were ...
Breeding disease-resistant wheats for tropical highlands and lowlands
Wheat is grown on about 10 million ha in the tropical highlands and lowlands of the world, where it is an important food source. Many farmers in these areas work under subsistence conditions. Wheat diseases in tropical ...
Estimating the economic impact of breeding nonspecific resistance to leaf rust in modern bread wheat
Breeding for resistance to rust diseases in wheat is an example of productivity maintenance research. Productivity maintenance research is necessary to avoid contractions in the wheat supply curve that result from changes ...
Epidemiology of wheat rusts in the western hemisphere
CIMMYT's approach to breeding for wide adaptation
The wheat area in developing countries, including China, is around 100 million ha. To address the needs of these very diverse wheat growing areas, CIMMYT has defined 12 wheat mega-environments (ME). A ME is defined as ...
CIMMYT's genetic progress in wheat grain quality under four nitrogen rates
Wheat (Triticum aestivum L.) breeders often try to simultaneously improve grain yield and bread-making quality. This study examined changes in CIMMYT's wheat germplasm with respect to grain protein concentration (GPC)- and ...