气候变化领域集成服务门户(CCPortal): Unraveling the effect of drought and heat stresses on grain quality of wheat ( Triticum aestivum )

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DOI	10.56093/ijas.v94i5.142783
	Unraveling the effect of drought and heat stresses on grain quality of wheat ( Triticum aestivum )
	Nandini, G. A.; Chitranshi, Abhishek; Gampa, Mallesh; Goswami, Suneha; Dalal, Monika; Kumar, Sudhir; Tyagi, Aruna; Kumar, Ranjeet r
发表日期	2024
ISSN	0019-5022
EISSN	2394-3319
起始页码	94
结束页码	5
卷号	94 期号:5
英文摘要	Drought stress (DS) and heat stress (HS) have adverse effects on wheat ( Triticum aestivum L.) growth, serving as the primary constraints that significantly limit grain yield. Present study was carried out during 2020-21 and 2021-22 at the research farm of ICAR-Indian Agricultural Research Institute, New Delhi to evaluate the effects of drought and heat stress on grain quality parameters of 4 contrasting wheat genotypes. Several physiological and biochemical parameters were analyzed in wheat cv. C306 (thermotolerant), HD3271 (thermosusceptible), H11500 (drought tolerant) and HD3226 (drought susceptible) under DS and HS. Our study found that disintegration of chlorophyll pigments was higher in wheat cv. HD3226 (43%) under combined stress. Grain weight per spike was reduced by 30% in C306 and 47.3% in HD 3271 under combined drought and heat stress treatment. All cultivars showed reduction in starch, amylose, amylopectin, AGPase and Soluble starch synthase activity under DS and HS. Additionally, a significant increase in total soluble protein and free amino acid content were observed in all genotypes under combined stress. Chlorophyll content and grain weight per spike were positively correlated with the starch, amylose, amylopectin, soluble starch synthase and AGPase activity, while negatively related to the total soluble protein and free amino acid content. The tolerant genotypes maintained higher chlorophyll content, grain weight per spike, starch, amylose, amylopectin, soluble starch synthase and AGPase activity could be used for breeding, for the adaptation to drought and heat under climate change.
英文关键词	Combined stress; Drought stress; Heat stress; Starch; Starch synthase; Wheat
语种	英语
WOS研究方向	Agriculture
WOS类目	Agriculture, Multidisciplinary
WOS记录号	WOS:001228471200001
来源期刊	INDIAN JOURNAL OF AGRICULTURAL SCIENCES
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/298982
作者单位	Indian Council of Agricultural Research (ICAR); ICAR - Indian Agricultural Research Institute
推荐引用方式 GB/T 7714	Nandini, G. A.,Chitranshi, Abhishek,Gampa, Mallesh,et al. Unraveling the effect of drought and heat stresses on grain quality of wheat ( Triticum aestivum )[J],2024,94(5).
APA	Nandini, G. A..,Chitranshi, Abhishek.,Gampa, Mallesh.,Goswami, Suneha.,Dalal, Monika.,...&Kumar, Ranjeet r.(2024).Unraveling the effect of drought and heat stresses on grain quality of wheat ( Triticum aestivum ).INDIAN JOURNAL OF AGRICULTURAL SCIENCES,94(5).
MLA	Nandini, G. A.,et al."Unraveling the effect of drought and heat stresses on grain quality of wheat ( Triticum aestivum )".INDIAN JOURNAL OF AGRICULTURAL SCIENCES 94.5(2024).