Tolerance of guava rootstocks under salt stress

被引：8
|
作者：
Sa, Francisco V. Da S. [1 ]
Nobre, Reginaldo G. [2 ]
Silva, Luderlandio de A. [2 ]
Moreira, Romulo C. L. [1 ]
de Paiva, Emanoela P. [3 ]
de Oliveira, Fernanda A. [2 ]
机构：
[1] Univ Fed Campina Grande, Ctr Tecnol & Recursos Nat, Campina Grande, PB, Brazil
[2] Univ Fed Campina Grande, Ctr Ciencias & Tecnol Agroalimentar, Unidade Acad Ciencias Agr, Pombal, PB, Brazil
[3] Univ Fed Rural Semi Arido, Dept Ciencias Vegetais, Mossoro, RN, Brazil
来源：
REVISTA BRASILEIRA DE ENGENHARIA AGRICOLA E AMBIENTAL | 2016年 / 20卷 / 12期
关键词：
Psidium gua[!text type='java']java[!/text] L; irrigation; salinity; propagation; SALINE WATER; SEEDLINGS; PALUMA; SYSTEM;
D O I：
10.1590/1807-1929/agriambi.v20n12p1072-1077
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
This study aimed to evaluate the tolerance of guava rootstocks under salt stress in the initial development stage. The experiment was conducted in a greenhouse in a randomized block design in a 5 x 3 factorial, consisting of five levels of irrigation water salinity (0.6, 1.2, 1.8, 2.4 and 3.0 dS m(-1)) and three guava rootstocks ('Crioula', 'Paluma' and 'Ogawa'), with four replicates and four plants per replicate. Emergence, growth and phytomass accumulation were evaluated 30 days after sowing. Increased salinity restricts guava emergence, growth and phytomass accumulation, and the most drastic effects occur at levels higher than 1.8 dS m(-1). The cultivar 'Crioula' is more tolerant to salinity in relation to 'Paluma' and 'Ogawa', and can be indicated as rootstock.
引用
收藏
页码：1072 / 1077
页数：6
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