Seed yield is complex traits considered as ultimate product of it components, hence the knowledge of interrelationship between contributing characters and seed yield is pre-requisite to plan meaningful crop improvement program. A total of 64 bread wheat genotypes were planted at Werer Agricultural Research Center during 2019/20 to assess genotypic and phenotypic correlation coefficients and their direct and indirect effects on grain yield. Under optimum condition biomass yield, harvest index, fertile tiller plant-1 and spike length showed positive and highly significant correlation with grain yield at genotypic and phenotypic level. Under stress condition biomass yield, harvest index, fertile tiller plant-1, number of spikelets spike-1 and spike length showed positive and highly significant correlation with grain yield at genotypic and phenotypic level. This positive correlation could be resulted from the presence of common genetic elements that controls the characters to the same direction. Under optimum condition, biomass yield (0.864) followed by harvest index (0.627) exerted the highest positive direct effect on grain yield at genotypic level. At phenotypic level biomass yield (0.819) followed by harvest index (0.626) exerted strong positive direct effect on grain yield. Under stress condition biomass yield (0.784) and harvest index (0.405) exerted highest positive direct effect on grain yield. Biomass yield (0.765) exerted positive and highest direct effect on grain yield, whereas harvest index (0.214) exerted moderate positive direct effect on grain yield at phenotypic level under stress condition. The result indicates any genetic improvement on those traits could improve grain yield.
| Published in | American Journal of Plant Biology (Volume 7, Issue 3) |
| DOI | 10.11648/j.ajpb.20220703.11 |
| Page(s) | 120-126 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2024. Published by Science Publishing Group |
Bread Wheat, Correlation, Path Coefficient, Stress
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APA Style
Tamiru Olbana Milkessa. (2022). Correlation and Path Coefficient Analysis of Traits in Bread Wheat (Triticum aestivum L.) Genotypes Under Drought Stress Conditions. American Journal of Plant Biology, 7(3), 120-126. https://doi.org/10.11648/j.ajpb.20220703.11
ACS Style
Tamiru Olbana Milkessa. Correlation and Path Coefficient Analysis of Traits in Bread Wheat (Triticum aestivum L.) Genotypes Under Drought Stress Conditions. Am. J. Plant Biol. 2022, 7(3), 120-126. doi: 10.11648/j.ajpb.20220703.11
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Download@article{10.11648/j.ajpb.20220703.11,
author = {Tamiru Olbana Milkessa},
title = {Correlation and Path Coefficient Analysis of Traits in Bread Wheat (Triticum aestivum L.) Genotypes Under Drought Stress Conditions},
journal = {American Journal of Plant Biology},
volume = {7},
number = {3},
pages = {120-126},
doi = {10.11648/j.ajpb.20220703.11},
url = {https://doi.org/10.11648/j.ajpb.20220703.11},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajpb.20220703.11},
abstract = {Seed yield is complex traits considered as ultimate product of it components, hence the knowledge of interrelationship between contributing characters and seed yield is pre-requisite to plan meaningful crop improvement program. A total of 64 bread wheat genotypes were planted at Werer Agricultural Research Center during 2019/20 to assess genotypic and phenotypic correlation coefficients and their direct and indirect effects on grain yield. Under optimum condition biomass yield, harvest index, fertile tiller plant-1 and spike length showed positive and highly significant correlation with grain yield at genotypic and phenotypic level. Under stress condition biomass yield, harvest index, fertile tiller plant-1, number of spikelets spike-1 and spike length showed positive and highly significant correlation with grain yield at genotypic and phenotypic level. This positive correlation could be resulted from the presence of common genetic elements that controls the characters to the same direction. Under optimum condition, biomass yield (0.864) followed by harvest index (0.627) exerted the highest positive direct effect on grain yield at genotypic level. At phenotypic level biomass yield (0.819) followed by harvest index (0.626) exerted strong positive direct effect on grain yield. Under stress condition biomass yield (0.784) and harvest index (0.405) exerted highest positive direct effect on grain yield. Biomass yield (0.765) exerted positive and highest direct effect on grain yield, whereas harvest index (0.214) exerted moderate positive direct effect on grain yield at phenotypic level under stress condition. The result indicates any genetic improvement on those traits could improve grain yield.},
year = {2022}
}
TY - JOUR T1 - Correlation and Path Coefficient Analysis of Traits in Bread Wheat (Triticum aestivum L.) Genotypes Under Drought Stress Conditions AU - Tamiru Olbana Milkessa Y1 - 2022/08/24 PY - 2022 N1 - https://doi.org/10.11648/j.ajpb.20220703.11 DO - 10.11648/j.ajpb.20220703.11 T2 - American Journal of Plant Biology JF - American Journal of Plant Biology JO - American Journal of Plant Biology SP - 120 EP - 126 PB - Science Publishing Group SN - 2578-8337 UR - https://doi.org/10.11648/j.ajpb.20220703.11 AB - Seed yield is complex traits considered as ultimate product of it components, hence the knowledge of interrelationship between contributing characters and seed yield is pre-requisite to plan meaningful crop improvement program. A total of 64 bread wheat genotypes were planted at Werer Agricultural Research Center during 2019/20 to assess genotypic and phenotypic correlation coefficients and their direct and indirect effects on grain yield. Under optimum condition biomass yield, harvest index, fertile tiller plant-1 and spike length showed positive and highly significant correlation with grain yield at genotypic and phenotypic level. Under stress condition biomass yield, harvest index, fertile tiller plant-1, number of spikelets spike-1 and spike length showed positive and highly significant correlation with grain yield at genotypic and phenotypic level. This positive correlation could be resulted from the presence of common genetic elements that controls the characters to the same direction. Under optimum condition, biomass yield (0.864) followed by harvest index (0.627) exerted the highest positive direct effect on grain yield at genotypic level. At phenotypic level biomass yield (0.819) followed by harvest index (0.626) exerted strong positive direct effect on grain yield. Under stress condition biomass yield (0.784) and harvest index (0.405) exerted highest positive direct effect on grain yield. Biomass yield (0.765) exerted positive and highest direct effect on grain yield, whereas harvest index (0.214) exerted moderate positive direct effect on grain yield at phenotypic level under stress condition. The result indicates any genetic improvement on those traits could improve grain yield. VL - 7 IS - 3 ER -
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