Data/hora: 11/06/2024 09:26:57

Provedor de dados: | 63
País: | Brazil
Título: | Emergence and growth of corn and soybean under saline stress
Autores: | Blanco,Flávio Favaro; Folegatti,Marcos Vinícius; Gheyi,Hans Raj; Fernandes,Pedro Dantas.
Data: | 2007-10-01
Ano: | 2007
Palavras-chave: | Zea mays; Glycine max; Salinity tolerance; Soil solution.
Resumo: | Emergence and seedling growth may be severely affected by salinity, mainly for sensitive crops. The objective of the present study was to verify the tolerance of corn and soybean to the irrigation water salinity (ECi) during the emergence and initial development stages. Seeds of corn, hybrid 'AG-6690', and soybean, cv. 'Conquista', were sown in pots containing material from a sandy-loam soil and irrigated with water of increasing salinity levels, from 0.3 to 5.9 dS m-1, giving nine levels of ECi obtained by the addition of an equivalent proportion of sodium and calcium chloride, except for ECi = 0.3 dS m-1 (tap water). Emergence of corn was not affected by salinity but seedling development was reduced for ECi above 1.5 dS m-1. Emergence and growth of soybean were reduced by water salinity and the crop was more tolerant during the emergence (ECi = 2.7 dS m-1) than in the initial development (ECi = 1.0 dS m-1) stage. Salinity of soil solution (ECs) was linearly correlated to ECi and affected the growth of corn and soybean for ECs higher than 3 and 2 dS m-1, respectively.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162007000500001
Editor: | São Paulo - Escola Superior de Agricultura "Luiz de Queiroz"
Relação: | 10.1590/S0103-90162007000500001
Formato: | text/html
Fonte: | Scientia Agricola  v.64 n.5 2007
Fonte: | info:eu-repo/semantics/openAccess