Emergence and seedling vigor of cowpea genotypes under salt stress

被引：6
|
作者：
de Almeida, Wener S. [1 ]
Fernandes, Francisco R. B. [2 ]
Bertini, Candida H. C. de M. [3 ]
Pinheiro, Marcelo de S. [4 ]
Teofilo, Elizita M. [3 ]
机构：
[1] Univ Fed Ceara, Dept Fitotecnia, Programa Pos Grad Fitotecnia, BR-60165455 Fortaleza, Ceara, Brazil
[2] Univ Fed Ceara, Dept Engn Agr, Programa Pos Grad Engn Agr, BR-60744550 Fortaleza, Ceara, Brazil
[3] Univ Fed Ceara, Dept Fitotecnia, BR-60356001 Fortaleza, Ceara, Brazil
[4] Univ Fed Ceara, Dept Fitotecnia, Programa Pos Grad Fitotecnia, BR-60541052 Fortaleza, Ceara, Brazil
来源：
REVISTA BRASILEIRA DE ENGENHARIA AGRICOLA E AMBIENTAL | 2012年 / 16卷 / 10期
关键词：
Vigna unguiculata; salinity; tolerance; TOLERANCE; NACL; LEAVES; WATER;
D O I：
10.1590/S1415-43662012001000003
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
The objective of this study was to evaluate the effect of salinity of irrigation water on cowpea and identify genotypes tolerant to salt stress in the early stages of its development. The levels of electrical conductivity (EC) of irrigation water were 0, 2.5, 5.0 and 7.5 dS m(-1). The tolerance of cowpea was evaluated by the relative reduction in shoot dry matter of each genotype. The results were compared and analyzed by Scott-Knott test at 0.05 level of probability. All variables were affected by increasing salinity of irrigation water. The genotype CE-182 was more tolerant at EC of 2.5, 5.0 and 7.5 dS m(-1) of water salinized with NaCl. In the solution containing mixture of salts, the genotypes CE-9 and CE-551 were the most tolerant.
引用
收藏
页码：1047 / 1054
页数：8
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