Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1590/1807-1929/agriambi.v21n2p122-127 |
Physiological and ionic changes in dwarf coconut seedlings irrigated with saline water | |
Lima, Breno L. de C.1; de lacerda, Claudivan F.2; Neto, Miguel Ferreira3; Ferreira, Jorge F. da S.4; Bezerra, Antonio M. E.5; Marques, Elton C.3 | |
通讯作者 | Lima, Breno L. de C. |
来源期刊 | REVISTA BRASILEIRA DE ENGENHARIA AGRICOLA E AMBIENTAL |
ISSN | 1415-4366 |
EISSN | 1807-1929 |
出版年 | 2017 |
卷号 | 21期号:2页码:122-127 |
英文摘要 | Salt-tolerant plants are important to cope with salinity and/or sodicity problems in semi-arid regions. The dwarf coconut palm (Cocos nucifera L.) has emerged as a salt-tolerant crop once established. However, little is known about the mechanisms that contribute to the survival of coconut seedlings under salinity stress. This study aimed to evaluate the effect of saline water on morpho-physiological and biochemical responses of dwarf coconut seedlings. Treatments were composed of five levels of water salinity, expressed by its electrical conductivity (ECw), as follows: 0.9 (control); 5.2; 10.1; 15.3 and 19.3 dS m(-1) in a completely randomized design with four replications. The high levels of organic solutes (carbohydrates and soluble amino-N) and Na+ in roots, that contribute to the low values of Na+/K+ ratio in the leaves, suggest that roots play an important role in the mechanism of salt tolerance of coconut seedlings. The use of brackish water with ECw of 5.2 dS m(-1) allows seedling production, with no loss of quality. Based on total dry matter accumulation, seedlings were classified as moderately tolerant to the salinity of 10.1 dS m(-1). |
英文关键词 | Cocos nucifera L. salt tolerance organic solutes |
类型 | Article |
语种 | 英语 |
国家 | Brazil ; USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000394518300009 |
WOS关键词 | AMINO-ACIDS ; SALT ; PHOTOSYNTHESIS ; ACCUMULATION ; PROLINE ; SOLUTES ; GROWTH ; PLANTS ; NUT |
WOS类目 | Agricultural Engineering |
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/2XILL650/202050 |
作者单位 | 1.Univ Fed Rural Pernambuco, Dept Engn Agr, Programa Posgrad Engn Agr, Recife, PE, Brazil; 2.Univ Fed Ceara, Ctr Ciencias Agr, Dept Engn Agr, Fortaleza, Ceara, Brazil; 3.Univ Fed Rural Semi Arido, Dept Ciencias Ambientais & Tecnol, Programa Posgrad Manejo Solo & Agua, Mossoro, RN, Brazil; 4.ARS, USDA, US Salin Lab, Riverside, CA USA; 5.Univ Fed Ceara, Ctr Ciencias Agr, Dept Fitotecnia, Fortaleza, Ceara, Brazil |
推荐引用方式 GB/T 7714 | Lima, Breno L. de C.,de lacerda, Claudivan F.,Neto, Miguel Ferreira,et al. Physiological and ionic changes in dwarf coconut seedlings irrigated with saline water[J],2017,21(2):122-127. |
APA | Lima, Breno L. de C.,de lacerda, Claudivan F.,Neto, Miguel Ferreira,Ferreira, Jorge F. da S.,Bezerra, Antonio M. E.,&Marques, Elton C..(2017).Physiological and ionic changes in dwarf coconut seedlings irrigated with saline water.REVISTA BRASILEIRA DE ENGENHARIA AGRICOLA E AMBIENTAL,21(2),122-127. |
MLA | Lima, Breno L. de C.,et al."Physiological and ionic changes in dwarf coconut seedlings irrigated with saline water".REVISTA BRASILEIRA DE ENGENHARIA AGRICOLA E AMBIENTAL 21.2(2017):122-127. |
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