Capacidade de emergência e crescimento inicial de plântulas de quatro leguminosas em zonas áridas sob estresse por NaCl

Palavras-chave: biomassa, crescimento, Vigna unguiculata L. Walp., Lablab purpureus L. Sweet, Clitoria ternatea L., Canavalia ensiformis L. DC.

Resumo

As leguminosas são utilizadas como forragens e adubos verdes, por fixarem o nitrogênio biologicamente. O objetivo deste estudo foi determinar a capacidade de emergência e o crescimento inicial de quatro espécies de leguminosas tratadas com diferentes concentrações de NaCl-estresse. O experimento foi instalado em delineamento inteiramente casualizado com arranjo fatorial, onde o primeiro fator foram as quatro espécies de leguminosas (Vigna unguiculata L. Walp., Lablab purpureus L. Sweet, Clitoria ternatea L. y Canavalia ensiformis L. DC.)  e o segundo fator foram as concentrações de NaCl (0,25, 50, e 75 mM) com 16 tratamentos e quatro repetições. As variáveis avaliadas foram taxa e porcentagem de emergência, comprimento de caule e raiz, massa fresca e seca de caule+folhas e raiz, comprimento de caule e raiz, diâmetro do caule e relação massa seca de caule+folhas e massa seca de raízes (equilíbrio da planta). Os resultados mostraram que todas as variáveis expressaram diferenças significativas entre as espécies, NaCl e a interação espécie × NaCl. Observou-se uma resposta diferencial entre as leguminosas ao estresse por NaCl. As espécies mais tolerantes ao NaCl foram Vigna unguiculata e Canavalia ensiformis apresentaram maior tolerância em relação a Lablab purpureus e Clitoria ternatea.

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Publicado
2023-06-02
Como Citar
Ruiz-Espinoza, F., Reyes-Perez, J., Beltrán-Morales, F., Murillo-Amador, B., Rodríguez-Ortiz, J., & Arce-Amézquita, P. (2023). Capacidade de emergência e crescimento inicial de plântulas de quatro leguminosas em zonas áridas sob estresse por NaCl. Revista Da Faculdade De Agronomia Da Universidade De Zulia, 40(2), e234020. Obtido de https://mail.produccioncientificaluz.org/index.php/agronomia/article/view/40247
Secção
Produção Vegetal