干旱区生态环境知识资源中心(Arid): Seedling elongation responses to gibberellin seed treatments in wheat

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DOI	10.1002/agg2.20144
	Seedling elongation responses to gibberellin seed treatments in wheat
	Horgan, Andrew M.; Campbell, Kimberly A. Garland; Carter, Arron H.; Steber, Camille M.
通讯作者	Carter, AH (corresponding author), Washington State Univ, Dept Crop & Soil Sci, Pullman, WA 99164 USA.
来源期刊	AGROSYSTEMS GEOSCIENCES & ENVIRONMENT
EISSN	2639-6696
出版年	2021
卷号	4 期号:1
英文摘要	The wheat (Triticum aestivum L.) Reduced height (Rht) alleles are widely used to prevent lodging through semi-dwarfism. Seedling elongation and coleoptile length can be significantly decreased by some of these alleles, leading to reduced soil emergence after deep sowing in certain semi-arid environments. Application of the elongation-promoting hormone gibberellin A(3) (GA(3)) as a seed treatment has been used as an alternative to improve seedling emergence. Seedling responses to GA(3) seed treatment were investigated under controlled conditions in a collection of varieties differing for Rht dwarfing alleles and the ability to emerge from deep planting. Data between treated and untreated seed were collected on overall coleoptile length and emergence from deep planting in simulated pot studies. Gibberellin-sensitive varieties, carrying either no dwarfing gene or the Rht8 dwarfing gene, responded to the GA(3) seed treatment with increased coleoptile and subcrown internode elongation. Comparison of near-isogenic lines carrying no dwarfing allele or the GA-insensitive Rht-B1b and/or Rht-D1b semi-dwarfing alleles showed that GA insensitivity was associated with reduced seedling response to GA(3) seed treatment. However, there was variation in seedling elongation and GA(3) response in a collection of GA-insensitive varieties. Thus, it cannot be assumed that all Rht-B1b and Rht-D1b varieties will fail to respond to GA(3) seed treatment. Interestingly, some better emerging GA-insensitive varieties had longer coleoptiles after treatment, suggesting that selection for better emergence in semi-arid regions of the U.S. Pacific Northwest may have led to responses in GA(3) application independent of the dwarfing gene used.
类型	Article
语种	英语
开放获取类型	gold
收录类别	ESCI
WOS记录号	WOS:000710547500013
WOS关键词	DWARFING GENES ; BREAD WHEAT ; COLEOPTILE LENGTH ; AGRONOMIC COMPARISONS ; SEMI-DWARFISM ; REGISTRATION ; EMERGENCE ; MUTANTS ; GROWTH ; RHT1
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/2XILL650/374260
作者单位	[Horgan, Andrew M.; Carter, Arron H.; Steber, Camille M.] Washington State Univ, Dept Crop & Soil Sci, Pullman, WA 99164 USA; [Campbell, Kimberly A. Garland; Steber, Camille M.] USDA ARS, Wheat Hlth Genet & Qual Unit, Pullman, WA 99164 USA
推荐引用方式 GB/T 7714	Horgan, Andrew M.,Campbell, Kimberly A. Garland,Carter, Arron H.,et al. Seedling elongation responses to gibberellin seed treatments in wheat[J],2021,4(1).
APA	Horgan, Andrew M.,Campbell, Kimberly A. Garland,Carter, Arron H.,&Steber, Camille M..(2021).Seedling elongation responses to gibberellin seed treatments in wheat.AGROSYSTEMS GEOSCIENCES & ENVIRONMENT,4(1).
MLA	Horgan, Andrew M.,et al."Seedling elongation responses to gibberellin seed treatments in wheat".AGROSYSTEMS GEOSCIENCES & ENVIRONMENT 4.1(2021).