干旱区生态环境知识资源中心(Arid): Phosphorus Increases K+ in the Shoot and Improves Salinity Tolerance in Sweetsop Seedlings

Arid

DOI	10.1007/s00344-021-10361-y
	Phosphorus Increases K+ in the Shoot and Improves Salinity Tolerance in Sweetsop Seedlings
	de Andrade, Francisco Helio Alves; Pereira, Walter Esfrain; Maia, Josemir Moura; Clemente, Maria Isabela Batista; de Sousa Lima, Jucelino; Silva, Vania Aparecida
通讯作者	de Andrade, FHA (corresponding author), Univ Fed Lavras, Dept Biol, Plant Physiol Sect, Lavras, MG, Brazil.
来源期刊	JOURNAL OF PLANT GROWTH REGULATION
ISSN	0721-7595
EISSN	1435-8107
出版年	2021-05
英文摘要	The use of brackish waters is an alternative for the cultivation of fruit-bearing plants in semi-arid regions; nonetheless, sweetsop trees (Annona squamosa L.) are sensitive to these types of waters. However, phosphate fertilization can be a technique used to mitigate the harmful effects of salinity. Thus, our objective was to evaluate the application of phosphorus to mitigate the salinity in irrigation water. The experiment was conducted in a randomized block design, with six treatments S1 (2.5 dS m(-1)) S2 = (4 dS m(-1)), SP1 (2.5 dS m(-1) + 1.35 g dm(-3) of P2O5), SP2 = (4 dS m(-1) + 1.35 g dm(-3) of P2O5), T (control), and P (1.35 g dm(-3) of P2O5). After 78 days of transplantation, the seedlings were evaluated for the total dry weight (TDW), leaf area (LA), salt tolerance index (STI), water use efficiency (WUE), Na+ and K+ levels in the shoot and root, chlorophylls a and b, maximum (Fm) and variable (Fv) chlorophyll fluorescence, quantum efficiency of photosystem II (Fv/Fm), total soluble sugar (TSS), total free amino acids (TFAA), proline, and glycine betaine (GB). It was observed that plants treated with SP1 and SP2 show higher results of TDW, LA, STI, WUE, and K in the shoot, Chl a, Chl b, Fm, Fv, Fv/Fm, TFAA, proline, GB, and TSS in relation to S1 and S2. The presence of phosphorus under salinity conditions increased the K+ concentration in the shoot, which was responsible for the improvement of pigments as well as increasing the quantum efficiency of photosystem II and carbohydrates, maintaining the growth and, consequently, the salinity tolerance of the sweetsop seedlings.
英文关键词	Annona squamosa Electrical conductivity Triple superphosphate Seedlings K+ Carbohydrates Compatible solutes
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000647492600001
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/352338
作者单位	[de Andrade, Francisco Helio Alves; de Sousa Lima, Jucelino] Univ Fed Lavras, Dept Biol, Plant Physiol Sect, Lavras, MG, Brazil; [Pereira, Walter Esfrain] Univ Fed Paraiba, Dept Social & Fundamental Sci, Areia, PB, Brazil; [Maia, Josemir Moura] Univ Estadual Paraiba, Dept Agr & Exact Sci, Catole Do Rocha, PB, Brazil; [Clemente, Maria Isabela Batista] Univ Fed Rural Semi Arido, Dept Agr & Forest Sci, Mossoro, RN, Brazil; [Silva, Vania Aparecida] EPAMIG SUL, Empresa Pesquisa Agropecuaria Minas Gerais, Lavras, MG, Brazil
推荐引用方式 GB/T 7714	de Andrade, Francisco Helio Alves,Pereira, Walter Esfrain,Maia, Josemir Moura,et al. Phosphorus Increases K+ in the Shoot and Improves Salinity Tolerance in Sweetsop Seedlings[J],2021.
APA	de Andrade, Francisco Helio Alves,Pereira, Walter Esfrain,Maia, Josemir Moura,Clemente, Maria Isabela Batista,de Sousa Lima, Jucelino,&Silva, Vania Aparecida.(2021).Phosphorus Increases K+ in the Shoot and Improves Salinity Tolerance in Sweetsop Seedlings.JOURNAL OF PLANT GROWTH REGULATION.
MLA	de Andrade, Francisco Helio Alves,et al."Phosphorus Increases K+ in the Shoot and Improves Salinity Tolerance in Sweetsop Seedlings".JOURNAL OF PLANT GROWTH REGULATION (2021).