干旱区生态环境知识资源中心(Arid): Genetic Potential and Inheritance Patterns of Physiological, Agronomic and Quality Traits in Bread Wheat under Normal and Water Deficit Conditions

Arid

DOI	10.3390/plants11070952
	Genetic Potential and Inheritance Patterns of Physiological, Agronomic and Quality Traits in Bread Wheat under Normal and Water Deficit Conditions
	Kamara, Mohamed M.; Rehan, Medhat; Mohamed, Amany M.; El Mantawy, Rania F.; Kheir, Ahmed M. S.; Abd El-Moneim, Diaa; Safhi, Fatmah Ahmed; ALshamrani, Salha M.; Hafez, Emad M.; Behiry, Said, I; Ali, Mohamed M. A.; Mansour, Elsayed
通讯作者	Rehan, M
来源期刊	PLANTS-BASEL
ISSN	2223-7747
出版年	2022
卷号	11 期号:7
英文摘要	Water scarcity is a major environmental stress that adversatively impacts wheat growth, production, and quality. Furthermore, drought is predicted to be more frequent and severe as a result of climate change, particularly in arid regions. Hence, breeding for drought-tolerant and high-yielding wheat genotypes has become more decisive to sustain its production and ensure global food security with continuing population growth. The present study aimed at evaluating different parental bread wheat genotypes (exotic and local) and their hybrids under normal and drought stress conditions. Gene action controlling physiological, agronomic, and quality traits through half-diallel analysis was applied. The results showed that water-deficit stress substantially decreased chlorophyll content, photosynthetic efficiency (FV/Fm), relative water content, grain yield, and yield attributes. On the other hand, proline content, antioxidant enzyme activities (CAT, POD, and SOD), grain protein content, wet gluten content, and dry gluten content were significantly increased compared to well-watered conditions. The 36 evaluated genotypes were classified based on drought tolerance indices into 5 groups varying from highly drought-tolerant (group A) to highly drought-sensitive genotypes (group E). The parental genotypes P-3 and P-8 were identified as good combiners to increase chlorophyll b, total chlorophyll content, relative water content, grain yield, and yield components under water deficit conditions. Additionally, the cross combinations P-2 x P-4, P-3 x P-5, P-3 x P-8, and P-6 x P-7 were the most promising combinations to increase yield traits and multiple physiological parameters under water deficit conditions. Furthermore, P-1, P-2, and P-5 were recognized as promising parents to improve grain protein content and wet and dry gluten contents under drought stress. In addition, the crosses P-1 x P-4, P-2 x P-3, P-2 x P-5, P-2 x P-6, P-4 x P-7, P-5 x P-7, P-5 x P-8, P-6 x P-8, and P-7 x P-8 were the best combinations to improve grain protein content under water-stressed and non-stressed conditions. Certain physiological traits displayed highly positive associations with grain yield and its contributing traits under drought stress such as chlorophyll a, chlorophyll b, total chlorophyll content, photosynthetic efficiency (Fv/Fm), proline content, and relative water content, which suggest their importance for indirect selection under water deficit conditions. Otherwise, grain protein content was negatively correlated with grain yield, indicating that selection for higher grain yield could reduce grain protein content under drought stress conditions.
英文关键词	Triticum aestivum cluster analysis drought gene action heterosis principal component analysis
类型	Article
语种	英语
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000782048200001
WOS关键词	TRITICUM-AESTIVUM L. ; COMBINING ABILITY ; DROUGHT-STRESS ; WINTER-WHEAT ; GRAIN QUALITY ; ENHANCING RESILIENCE ; EGYPTIAN CONDITIONS ; TERMINAL DROUGHT ; CLIMATE-CHANGE ; DURUM-WHEAT
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/393982
推荐引用方式 GB/T 7714	Kamara, Mohamed M.,Rehan, Medhat,Mohamed, Amany M.,et al. Genetic Potential and Inheritance Patterns of Physiological, Agronomic and Quality Traits in Bread Wheat under Normal and Water Deficit Conditions[J],2022,11(7).
APA	Kamara, Mohamed M..,Rehan, Medhat.,Mohamed, Amany M..,El Mantawy, Rania F..,Kheir, Ahmed M. S..,...&Mansour, Elsayed.(2022).Genetic Potential and Inheritance Patterns of Physiological, Agronomic and Quality Traits in Bread Wheat under Normal and Water Deficit Conditions.PLANTS-BASEL,11(7).
MLA	Kamara, Mohamed M.,et al."Genetic Potential and Inheritance Patterns of Physiological, Agronomic and Quality Traits in Bread Wheat under Normal and Water Deficit Conditions".PLANTS-BASEL 11.7(2022).