干旱区生态环境知识资源中心(Arid): Comprehensive morpho-physiological criteria for screening bread wheat (Triticum aestivum L.) genotypes under drought stress condition

Arid

DOI	10.1007/s42976-023-00390-6
	Comprehensive morpho-physiological criteria for screening bread wheat (Triticum aestivum L.) genotypes under drought stress condition
	Aminizadeh, Somayeh; Pourseyedi, Shahram; Mohammadi-Nejad, Ghasem; Mohayeji, Mehdi; Farahbakhsh, Hasan; Salarpour, Mahdiyeh; Abdolshahi, Roohollah
通讯作者	Abdolshahi, R
来源期刊	CEREAL RESEARCH COMMUNICATIONS
ISSN	0133-3720
EISSN	1788-9170
出版年	2024
卷号	52 期号:1 页码:287-300
英文摘要	Drought tolerance is a main wheat characteristic in the arid and semi-arid regions of the world. This character is affected with several morpho-physiological traits. Selection based on single secondary trait results in low genetic gain for drought tolerance. To find a comprehensive criterion to take advantage of several effective secondary traits simultaneously, three field experiments were conducted on 45 wheat genotypes under irrigated and drought stress conditions. Among 34 morpho-physiological traits, 14 characters including flag leaf angle, flag leaf width, chlorophyll a, number of grains on the main spike, canopy temperature, leaf temperature, biological yield, stover above ground biomass at harvest, proline content, malondialdehyde content, photosynthetically active radiation, net photosynthetic rate, transpiration rate and leaf stomatal conductance could significantly separate high and low yield genotypes under drought stress condition and entered the discriminant function. Discriminant function with 96.67% accuracy screened low and high grain yield genotypes. In addition, this criterion had a significant positive correlation (r = 0.89*) with grain yield under water-deficit condition. This comprehensive criterion which explained 78% of wheat grain yield variation under drought stress conditions could improve selection efficiency in wheat breeding programs. The results showed that selection based on biological yield, leaf temperature, stover above ground biomass at harvest, leaf stomatal conductance, canopy temperature and malondialdehyde as the most promising traits may enhance a genetic gain for grain yield in environments that are vulnerable to water deficit in the future.
英文关键词	Discriminant analysis Drought stress Grain yield Wheat
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000994097600001
WOS关键词	PHYSIOLOGICAL TRAITS ; GRAIN-YIELD ; GENETIC GAINS ; CHINESE WHEAT ; WATER-USE ; TOLERANCE ; SELECTION ; PHOTOSYNTHESIS ; IMPROVEMENT ; ADAPTATION
WOS类目	Agronomy
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/403171
推荐引用方式 GB/T 7714	Aminizadeh, Somayeh,Pourseyedi, Shahram,Mohammadi-Nejad, Ghasem,et al. Comprehensive morpho-physiological criteria for screening bread wheat (Triticum aestivum L.) genotypes under drought stress condition[J],2024,52(1):287-300.
APA	Aminizadeh, Somayeh.,Pourseyedi, Shahram.,Mohammadi-Nejad, Ghasem.,Mohayeji, Mehdi.,Farahbakhsh, Hasan.,...&Abdolshahi, Roohollah.(2024).Comprehensive morpho-physiological criteria for screening bread wheat (Triticum aestivum L.) genotypes under drought stress condition.CEREAL RESEARCH COMMUNICATIONS,52(1),287-300.
MLA	Aminizadeh, Somayeh,et al."Comprehensive morpho-physiological criteria for screening bread wheat (Triticum aestivum L.) genotypes under drought stress condition".CEREAL RESEARCH COMMUNICATIONS 52.1(2024):287-300.