干旱区生态环境知识资源中心(Arid): Water deficit and heat stress induced alterations in grain physico-chemical characteristics and micronutrient composition in field grown grain sorghum

Arid

DOI	10.1016/j.jcs.2019.01.013
	Water deficit and heat stress induced alterations in grain physico-chemical characteristics and micronutrient composition in field grown grain sorghum
	Impa, S. M.1; Perumal, Ramasamy 2; Bean, Scott R.3; Sunoj, V. S. John 1; Jagadish, S. V. Krishna 1
通讯作者	Jagadish, S. V. Krishna
来源期刊	JOURNAL OF CEREAL SCIENCE
ISSN	0733-5210
EISSN	1095-9963
出版年	2019
卷号	86 页码:124-131
英文摘要	The surge in sorghum-based foods as a gluten-free alternative for cereals like wheat, has directed sorghum research towards understanding and improving grain quality parameters. Since sorghum is usually grown in arid and semi-arid environments, is often prone to terminal water deficit and heat stress, inducing significant yield and quality losses. In environment 1, 24 genotypes assembled from diverse geographic locations, representing major sorghum growing regions of the world were grown in irrigated and dryland conditions. In environment 2, heat stress was imposed on the same 24 genotypes by placing custom-built field-based heat tents on already established plants, starting from booting until maturity. Water-deficit stress increased kernel hardness and total protein in grain, decreased protein digestibility, and micronutrient composition. Heat stress recorded lower total protein, protein digestibility, micronutrient composition and higher kernel hardness than control. irrespective of the stress, larger kernels recorded higher total protein, protein digestibility and micronutrient composition, but lower total starch and kernel hardness. Almost all the measured grain micronutrients (Zn, Fe, Mn and Cu) were reduced under both stresses compared to control. Genotypes such as SC372 and RTx7000 which maintained desired grain quality parameters under stress conditions can help in incorporating quality traits into sorghum improvement programs.
英文关键词	Heat stress Grain sorghum Kernel hardness Micronutrient composition Protein digestibility Water-deficit stress
类型	Article
语种	英语
国家	USA
开放获取类型	Bronze
收录类别	SCI-E
WOS记录号	WOS:000462108300018
WOS关键词	DROUGHT STRESS ; QUALITY ; DIGESTIBILITY ; GENOTYPES ; PROTEINS ; ENZYMES ; YIELD ; SIZE
WOS类目	Food Science & Technology
WOS研究方向	Food Science & Technology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/216835
作者单位	1.Kansas State Univ, Dept Agron, 3706 Throckmorton Ctr, Manhattan, KS 66506 USA; 2.Kansas State Univ, Agr Res Ctr, Hays, KS 67601 USA; 3.USDA ARS, Grain Qual & Struct Res Unit, CGAHR, 1515 Coll Ave, Manhattan, KS 66502 USA
推荐引用方式 GB/T 7714	Impa, S. M.,Perumal, Ramasamy,Bean, Scott R.,et al. Water deficit and heat stress induced alterations in grain physico-chemical characteristics and micronutrient composition in field grown grain sorghum[J],2019,86:124-131.
APA	Impa, S. M.,Perumal, Ramasamy,Bean, Scott R.,Sunoj, V. S. John,&Jagadish, S. V. Krishna.(2019).Water deficit and heat stress induced alterations in grain physico-chemical characteristics and micronutrient composition in field grown grain sorghum.JOURNAL OF CEREAL SCIENCE,86,124-131.
MLA	Impa, S. M.,et al."Water deficit and heat stress induced alterations in grain physico-chemical characteristics and micronutrient composition in field grown grain sorghum".JOURNAL OF CEREAL SCIENCE 86(2019):124-131.