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Report
A guide to the CIMMYT Crop Management and Physiology Subprogram
(CIMMYT, 1993)
Emphasis in presenting developments and achievements of Crop Management and Physiology (CMP) will be placed on the period dating from 1988. This is when the strategic plan was formulated (although not published until 1989), ...
Report
Results of the 1st International Heat Stress Genotype Experiment
(CIMMYT, 1992)
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 ...
Report
Increasing the yield potential of irrigated bread wheat: basis for physiological research at CIMMYT
(CIMMYT, 1992)
Yield potential (YP) is defined as the "yield of a cultivar grown in environments to which it is adapted when nutrients and water are nonlimiting, and when pests, diseases, weeds, lodging, and other stresses are effectively ...
Report
Canopy temperatures of wheat: relationships with yield and potential as a technique for early generation selection
(CIMMYT, 1993)
It is shown that, for bread wheat, air-canopy temperature difference correlates significantly with grain yield, especially when measurements are taken later in the day, We discuss the potential of this technique as an early ...
Report
Evaluation of membrane thermostability and canopy temperature depression as screening traits for heat tolerance in wheat
(CIMMYT, 1993)
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 ...
Report
Adaptation of wheat to the canopy environment: physiological evidence that selection for vigor or random selection may reduce the frequency of high-yielding genotypes
(CIMMYT, 1993)
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 ...
Report
Photosynthetic characteristics of synthetic bread wheats
(CIMMYT, 1994)
In the process of genetic improvement of bread wheat, photosynthetic rate per unit leaf area has decreased significantly from the maximum photosynthetic rate (Pmax) of the crop's diploid ancestors (donors of the A, B, and ...