Correlation and Path Coefficient Analysis of Yield and Its Components in Some Derived Populations of Bread Wheat under Drought Stress Conditions

2014 ◽  
Vol 18 (4) ◽  
pp. 701-714
Author(s):  
E. S. A. Moustafa ◽  
S. A. Omar
Keyword(s):  
Drought Stress ◽  
Bread Wheat ◽  
Stress Conditions ◽  
Path Coefficient ◽  
Path Coefficient Analysis

scholarly journals Diallel Analysis for Area, Chlorophyll and Temperature of Flag Leaf in Bread Wheat under Well Watered and Drought Stress Conditions

2021 ◽  
Vol 13 (10) ◽  
pp. 45
Author(s):  
Naheif E. Mohamed ◽  
Ismail M. Bedawy ◽  
Yasser A. M. Hefny
Keyword(s):  
Drought Stress ◽  
Bread Wheat ◽  
Flag Leaf ◽  
Block Design ◽  
Diallel Analysis ◽  
Stress Conditions ◽  
F1 Hybrids ◽  
Gene Effects ◽  
Genetic Components ◽  
Additive Gene

To study genetic analysis of some physiological traits of drought stress in wheat using diallel techniques, an experiment was performed on ten bread wheat genotypes as parents and their 45 F1 hybrids in a randomized complete block design with three replicates under well-watered and drought stress conditions at the Research Farm of Faculty of Agriculture, Sohag University, Egypt during season of 2018/19. The results showed significant differences between the genotypes (G), Parents (P), F1 crosses, P vs. F1, GCA and SCA under well-watered and drought stress in the flag leaf area (FLA), flag leaf chlorophyll content (FLCC) and flag leaf temperature (FLT), except FLCC for F1 crosses exhibited insignificant differences. The significant differences were found in the interaction of SCA × Env., in all studied traits and GCA × Env., for FLT., indicating the involvement of both additive and dominance gene action in their inheritance. The most desirable heterotic effects were considered as the largest positive heterosis estimates for FLA and FLCC, and the lowest negative for FLT. The parent numbers P9, P8 and P3 were the best general combiner for FLA under normal irrigation and drought stress. While the parents P2, P7 and P9 were the best general combiner for FLCC, under normal irrigation and (P1, P2 and P3) under drought stress. Therefor the parents P1, P4 and P5 were the best general combiner for FLT under normal irrigation, also the P3, P4 and P5 were the best general combiner for FLT under drought stress conditions. Under normal irrigation and drought stress conditions as well as the combined data, the additive genetic components of variation (VA) in F1 ’s was much greater than dominance component (VD), as expressed by the (VA/VD) ratio which was more than unity for the FLA, and FLT under normal irrigation and their combined. This indicates that the additive gene effects in F1 crosses are more important than dominance and plays the major role in the inheritance of these studied traits.

Screening of bread wheat (Triticum aestivum L.) genotypes under drought stress conditions using multivariate analysis

2020 ◽  
Vol 48 (3) ◽  
pp. 301-308 ◽  
Author(s):  
M. Arifuzzaman ◽  
S. Barman ◽  
S. Hayder ◽  
M. A. K. Azad ◽  
M. T. S. Turin ◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
Multivariate Analysis ◽  
Drought Stress ◽  
Bread Wheat ◽  
Triticum Aestivum L ◽  
Stress Conditions

scholarly journals Genetic analysis for quantitative traits in bread wheat exposed to irrigated and drought stress conditions

Phyton ◽  
2017 ◽  
Vol 86 (1) ◽  
pp. 228-235
Author(s):  
Ataei R ◽  
M Gholamhoseini ◽  
M Kamalizadeh
Keyword(s):  
Drought Stress ◽  
Genetic Analysis ◽  
Bread Wheat ◽  
Quantitative Traits ◽  
Stress Conditions
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