Aplicação exógena de ácido salicílico na mitigação do estresse salino em Capsicum annuum L.

Ciencia Rural

article

André Alisson Rodrigues da Silva¹  Geovani Soares de Lima¹  Carlos Alberto Vieira de Azevedo¹  Luana Lucas de Sá Almeida Veloso¹  Leandro de Pádua Souza²  Reynaldo Teodoro de Fátima¹  Francisco de Assis da Silva¹  Hans Raj Gheyi¹ 

[1] Universidade Federal de Campina Grande;Universidade Federal Rural de Pernambuco

关键词: bell pepper;    saline waters;    salt tolerance;    elicitor;   

DOI  :  10.1590/0103-8478cr20210447

学科分类：农业科学（综合）

来源: Universidade Federal de Santa Maria * Centro de Ciencias Rurais

【 摘 要 】

Salinity has limited conventional vegetable cultivation, especially in semi-arid regions. In this regard, the use of elicitors that act to induce tolerance to salt stress, such as salicylic acid, has emerged as a promising alternative. This study evaluated the effects of foliar spraying with salicylic acid on the mitigation of salt stress on the morphophysiology and production of bell pepper cv. All Big. The study was conducted in a greenhouse in Campina Grande - PB, Brazil, adopting a completely randomized design, in a 4 x 4 factorial arrangement, corresponding to four levels of electrical conductivity of irrigation water (0.8; 1.6; 2.4; and 3.2 dS m-1) and four concentrations of salicylic acid (0; 1.2; 2.4 and 3.6 mM), with three replicates. The foliar application of salicylic acid at a concentration of 1.6 mM attenuated the effects of salt stress in gas exchange, growth, mean fruit weight, and total production per plant, and decreased the percentage of intercellular electrolyte leakage of sweet pepper cv. All Big plants, at 80 days after sowing.

【 授权许可】

Unknown