Publicação: Tolerance of tomato seedling cultivars to different values of irrigation water salinity
Carregando...
Data
Orientador
Coorientador
Pós-graduação
Curso de graduação
Título da Revista
ISSN da Revista
Título de Volume
Editor
Universidade Federal de Campina Grande
Tipo
Artigo
Direito de acesso
Acesso aberto
Resumo
The use of water with different salinity values in the production of vegetable seedlings is an issue of global concern; therefore, selecting tomato cultivars with tolerance to saline water is essential to improve the fruit quality and production. This study aimed to estimate the maximum electrical conductivity of irrigation water that does not harm the production of tomato seedlings and find cultivars with tolerance to the effects of salinity in this phase. In the first experiment, the treatments were arranged in a 3 × 8 factorial scheme (three tomato cultivars and eight values of electrical conductivity of irrigation water). The second experiment was arranged in a 10 × 3 factorial scheme (10 cultivars and three values of electrical conductivity of irrigation water). The 50% reduction in the root dry matter accumulation occurred with the electrical conductivity of irrigation water (ECw) of 2.31 dS m-1. The reduction of more than 50% of the Dickson quality index was observed with an ECw of 6.38 dS m-1. Irrigation with 3.0 dS m-1 impairs the complete emergence and growth of seedlings of all tomato cultivars. Coração de Boi, Dominador, Maestrina, Sheena, and Shanty were the tomato cultivars most tolerant to the irrigation water with 3.0 dS m-1 of ECw. The electrical conductivity of irrigation water higher than 2.31 dS m-1 impairs the root growth of tomato seedlings.
Descrição
Palavras-chave
Solanum lycopersicon, Salt stress, Osmotic potential, Root development
Idioma
Inglês
