Now showing items 1-9 of 9
Genetic diversity for photosynthesis in wheat under heat-stressed environments and its relationship to productivity
Genetic variation in photosynthetic rate, stomatal conductance, leaf chlorophyll content, and dark respiration was studied in 16 wheat genotypes (Triticum aestivum L.) grown under high-temperature field conditions in central ...
Increasing yield potential in wheat: breaking the barriers. Proceedings of a workshop held in Ciudad Obregon, Sonora, Mexico
CIMMYT's focus on developing wheat varieties that produce higher and more stable yields has made a tremendous difference in the lives of millions of people in the developing world. In the mid 1960s, the dramatic increases ...
Using canopy temperature depression to select for yield potential of wheat in heat stressed environments
The main objective of the study was to validate the use of canopy temperature depression (CTD) as a rapid early generation screening tool for heat tolerance in wheat. CTD was measured at hot sites in Mexico on F2 derived ...
Sustaining wheat yields with crop management in heat stressed environments: effect of organic and inorganic fertilizers, mulching, and irrigation frequency
Wheat (Triticum aestivum L.) emend. Thell) yield reduction associated with heat strees is a worldwide problem. The objectives of this research were to (i) to determine effects of major crop management factors on performance ...
Results of the 1st International Heat Stress Genotype Experiment
Fischer (1989) summarized the detrimental effects of high temperature on wheat growth as follows: Yield reduction can occur at temperatures above a mean as low as 150C, with the spike and grain growth phases being especially ...
Evaluation of membrane thermostability and canopy temperature depression as screening traits for heat tolerance in wheat
The production of wheat germplasm with resistance to high temperature increases in importance with world wheat demand. Temperatures considered above optimal for wheat growth and development of presently grown varieties are ...
Adaptation of wheat to the canopy environment: physiological evidence that selection for vigor or random selection may reduce the frequency of high-yielding genotypes
Increasing the potential yield of wheat is a major thrust of CIMMYT's Wheat Program. Farmer's wheat yields are linearly related to the yield potential of new varieties. At the same time, breeders should ideally be able to ...
Intercropping cereals with N-fixing legume species: a method for conserving soil resources in low-input systems
The natural resources of the developing world are becoming increasingly threatened as the agricultural sector intensifies. A major resource being lost is the topsoil. Low levels of soil organic matter and the incomplete ...
Cultivo intercalado de cereales con especies de leguminosas que fijan N: un metodo para conservar los recursos del suelo en sistemas de bajos insumos
La producción de cereales con pocos insumos y gran eficiencia contribuye a aliviar la pobreza, incrementa los ingresos agrícolas y favorece la conservación del medio ambiente (1os suelos y el agua). Este Informe Especial ...