Author: Vijeta Gupta
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
Stability Analysis of Yield and Yield Attributing Characters of Promising Bread Wheat [Triticum Aestivum (L) Em.thell] Genotypes [With CD Copy]
Stability Analysis of Genotypes with Concern to Yield Performance and Quality Traits in Bread Wheat ( Triticum Aestivum L ) [ With CD Copy ]
Variability and Stability Analysis for Grain Yield and Its Component Traits in Bread Wheat [With CD Copy]
Stability Analysis of Grain Yield, Its Components and Quality Plarameters of Bread Wheat (Triticum Aestivum L.) Genotypes Under Rainfed and Late Sown Condition
Phenotypic Stability and Principal Component Analysis for Yield and Quality Traits in Advanced Lines of Bread Wheat ( T. Aestivum L. Em. Thell ) {With CD Copy }
Combining Ability Analysis for Spike Traits and Other Yield Attributes in Bread Wheat (Triticum Aestivum L. Em. Thell) [with CD Copy].
Heat Stress in Wheat
Author: Amir Mohamed Hussein Ibrahim
Publisher:
ISBN:
Category : Wheat
Languages : en
Pages : 150
Book Description
Heat stress sets an upper limit to maximizing wheat yields in many irrigated, low-altitude, tropical environments. Terminal heat stress also reduces wheat yields in certain Mediterranean environments in West Asia and North Africa. A study was carried out at three different environments in Sudan and Syria to identify potential selection traits and environments for breeding purposes. Seventeen morphological, physiological, and phenological traits were used to evaluate 16 diverse bread wheat genotypes under early, terminal, and continuous heat stress conditions. A plastic house experiment was also conducted to characterize the 16 genotypes for their response to photoperiod and vernalization. Early flowering/maturity, longer peduncles, larger number of kernels/spike, larger harvest index, and larger biomass played an important role under early and terminal heat stress conditions in Northern Syria. Medium flowering/maturity, semi-dwarf stature, denser ground cover, and larger biomass conferred better agronomic performance under continuous heat stress conditions in Wad Medani, Sudan. Unlike grain and biological yields, days to f lag leaf emergence, anthesis, and maturity showed stability across the three environments. Harvest index showed some stability across environments as well. None of the 16 genotypes was sensitive to day length. The late-maturing genotypes were sensitive to vernalization. A large amount of genetic variability was found for all the traits tested in all three environments to guarantee their use in a breeding program for heat stress.
Publisher:
ISBN:
Category : Wheat
Languages : en
Pages : 150
Book Description
Heat stress sets an upper limit to maximizing wheat yields in many irrigated, low-altitude, tropical environments. Terminal heat stress also reduces wheat yields in certain Mediterranean environments in West Asia and North Africa. A study was carried out at three different environments in Sudan and Syria to identify potential selection traits and environments for breeding purposes. Seventeen morphological, physiological, and phenological traits were used to evaluate 16 diverse bread wheat genotypes under early, terminal, and continuous heat stress conditions. A plastic house experiment was also conducted to characterize the 16 genotypes for their response to photoperiod and vernalization. Early flowering/maturity, longer peduncles, larger number of kernels/spike, larger harvest index, and larger biomass played an important role under early and terminal heat stress conditions in Northern Syria. Medium flowering/maturity, semi-dwarf stature, denser ground cover, and larger biomass conferred better agronomic performance under continuous heat stress conditions in Wad Medani, Sudan. Unlike grain and biological yields, days to f lag leaf emergence, anthesis, and maturity showed stability across the three environments. Harvest index showed some stability across environments as well. None of the 16 genotypes was sensitive to day length. The late-maturing genotypes were sensitive to vernalization. A large amount of genetic variability was found for all the traits tested in all three environments to guarantee their use in a breeding program for heat stress.