Now showing items 1-10 of 11
Fixed versus variable rest period effects on herbage accumulation and canopy structure of grazed 'Tifton 85' and 'Jiggs' Bermuda grass
(Embrapa Informação Tecnológica, 2018)
The objective of this work was to evaluate the effects of variable and fixed rest periods on the forage production, plant-part composition, and canopy structural characteristics of 'Tifton 85' and 'Jiggs' Bermuda grass ...
Canopy temperatures of wheat: relationships with yield and potential as a technique for early generation selection
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 ...
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 ...
Physiological breeding I: interdisciplinary approaches to improve crop adaptation
This book addresses very well the current serious challenge facing agricultural research where crop improvement is required to address two hard tasks: (1) a greater rate of increase in yield potenti al as compared with ...
Physiological breeding II: a field guide to wheat phenotyping
This manual describes the use of diverse phenotyping techniques for applied crop research, with an emphasis on the methods commonly used at the Internati onal Maize and Wheat Improvement Center (CIMMYT). The manual provides ...
Association of water spectral indices with plant and soil water relations in contrasting wheat genotypes
(Oxford University Press; Society for Experimental Biology, 2010)
Spectral reflectance indices can be used to estimate the water status of plants in a rapid, non-destructive manner. Water spectral indices were measured on wheat under a range of water-deficit conditions in field-based ...
Fitomejoramiento fisiológico II: una guía de campo para la caracterización fenotípica de trigo
Este manual describe el uso de diversas técnicas para la caracterización fenotípica en la investigación agrícola aplicada, con énfasis en métodos comúnmente usados en el Centro Internacional de Mejoramiento de Maíz y Trigo ...