干旱区生态环境知识资源中心(Arid): Yield and Morphophysiology of Onion Grown under Salinity and Fertilization with Silicon

Arid

DOI	10.1016/j.scienta.2022.111095
	Yield and Morphophysiology of Onion Grown under Salinity and Fertilization with Silicon
	Venancio, Jefferson Bittencourt; Dias, Nildo da Silva; de Medeiros, Jose Francismar; de Morais, Patricia Ligia Dantas; do Nascimento, Clistenes Williams Araujo; de Sousa Neto, Osvaldo Nogueira; Sa, Francisco Vanies da Silva
通讯作者	Venancio, JB
来源期刊	SCIENTIA HORTICULTURAE
ISSN	0304-4238
EISSN	1879-1018
出版年	2022
卷号	301
英文摘要	Salinity limits agricultural yield in the arid and semi-arid regions of the world. Silicon (Si) benefits plants under abiotic stresses. However, Si fertilization in the yield of onion plants under salt stress are less well known. We conducted a field experiment to evaluate Si fertilization in onion yield, physiology and postharvest quality irrigated with saline water. The experiment was designed in randomized complete blocks, with four replicates, and treatments were arranged in split plots. The plots had four water electrical conductivity (0.65, 1.7, 2.8 and 4.1 dS m(-1)) and the subplots had five Si levels (0, 41.6, 83.2, 124.8 and 166.4 kg ha(-1) of Si), in the form a diatomaceous earth-based fertilizer derived from the species Melosira granulata. Waters high salinity reduced onion yield and bulb fresh mass, and increasing small bulbs (< 50 mm) production. Waters high salinity hampered onion plants membrane instability index, relative water content and contents of total chlorophyll, and carotenoids. Waters high salinity too hampered onion firmness, pH, soluble solids concentration, and SS/TA ratio. Si fertilization increased onion yield, bulb fresh mass and production of large bulbs (>= 50 mm), and saline stress attenuation occurred up to 2.8 dS m(-1). Si fertilization improved onion plants chlorophylls, carotenoids, total sugars, soluble solids, ascorbic acid, and pyruvic acids content. Si fertilization promoted onions acclimatization to salt stress, because increasing the synthesis of soluble sugars, ascorbic acids, and thio-compounds identifiable in PyA. Therefore, we recommend 78.5 kg ha(-1) of Si for onion plants under saline stress conditions.
英文关键词	Allium cepa L. Postharvest quality Pyruvic acid Thio-compounds Diatomaceous earth
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000794212000003
WOS关键词	SOLANUM-LYCOPERSICON L. ; STRESS TOLERANCE ; SALT STRESS ; TOMATO SEEDLINGS ; ASCORBIC-ACID ; ACCUMULATION ; STARCH ; PLANTS ; METABOLISM ; MECHANISMS
WOS类目	Horticulture
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/2XILL650/394416
推荐引用方式 GB/T 7714	Venancio, Jefferson Bittencourt,Dias, Nildo da Silva,de Medeiros, Jose Francismar,et al. Yield and Morphophysiology of Onion Grown under Salinity and Fertilization with Silicon[J],2022,301.
APA	Venancio, Jefferson Bittencourt.,Dias, Nildo da Silva.,de Medeiros, Jose Francismar.,de Morais, Patricia Ligia Dantas.,do Nascimento, Clistenes Williams Araujo.,...&Sa, Francisco Vanies da Silva.(2022).Yield and Morphophysiology of Onion Grown under Salinity and Fertilization with Silicon.SCIENTIA HORTICULTURAE,301.
MLA	Venancio, Jefferson Bittencourt,et al."Yield and Morphophysiology of Onion Grown under Salinity and Fertilization with Silicon".SCIENTIA HORTICULTURAE 301(2022).