Mostrando ítems 1-10 de 10
QTL for yield and associated traits in the Seri/Babax population grown across several environments in Mexico, in the West Asia, North Africa, and South Asia regions
Heat and drought adaptive quantitative trait loci (QTL) in a spring bread wheat population resulting from the Seri/Babax cross designed to minimize confounding agronomic traits have been identified previously in trials ...
Dissecting drought adaptation into its phenotypic and genetic components in wheat
Understanding of drought-adaptive traits has assisted wheat breeding and gene discovery at the International Maize and Wheat Improvement Centre (CIMMYT), accelerating genetic gains for yield in stressed environments. Recent ...
Association mapping and nucleotide sequence variation in five drought tolerance candidate genes in spring wheat
Functional markers are needed for key genes involved in drought tolerance to improve selection for crop yield under moisture stress conditions. The objectives of this study were to (i) characterize five drought tolerance ...
The yield correlations of selectable physiological traits in a population of advanced spring wheat lines grown in warm and drought environments
Genetic progress in yield will increase if more traits conferring better agronomic and physiological performance are brought together in the same variety through full exploitation of genotyping and phenotyping techniques ...
Genetic yield gains and changes in associated traits of CIMMYT spring bread wheat in a 'Historic' set representing 30 years of breeding
The genetic yield progress of 26 spring wheat (Triticum aestivum L.) advanced lines released by the International Maize and Wheat Improvement Centre (CIMMYT) in the period from 1977 to 2008 was evaluated in the selection ...
Drought adaptive traits and wide adaptation in elite lines derived from resynthesized hexaploid wheat
It has been shown previously that under drought, synthetic hexaploid derived wheat (Triticum aestivum L.) lines outperformed recurrent parents in part due to increased root mass at depth and better water extraction capacity. ...
Stay-green in spring wheat can be determined by spectral reflectance measurements (normalized difference vegetation index) independently from phenology
The green area displayed by a crop is a good indicator of its photosynthetic capacity, while chlorophyll retention or ?stay-green? is regarded as a key indicator of stress adaptation. Remote-sensing methods were tested to ...
Partitioning of assimilates to deeper roots is associated with cooler canopies and increased yield under drought in wheat
Dehydration avoidance through cooler canopy temperature (CT) has been shown to explain over 60% yield variation in a random progeny derived from a Seri/Babax cross. A near ?isomorphic? subset of Seri/Babax progeny and ...
Modelling and genetic dissection of staygreen under heat stress
Plant chlorophyll retention—staygreen—is considered a valuable trait under heat stress. Five experiments with the Seri/Babax wheat mapping population were sown in Mexico under hot-irrigated environments. Normalized difference ...
Phenotyping for breeding and physiological pre-breeding