Data/hora: 11/06/2024 03:16:42

Provedor de dados: | 109
País: | Colombia
Título: | Inoculation of plant growth promoting rhizobia in Sudan grass (Sorghum χ sudanense (Piper) Stapf cv. Sudanense) and millet (Pennisetum glaucum (L.) R.Br. cv. BRS1501)
Autores: | Goulart-Machado,Rafael; Saccol-de Sá,Enilson Luiz; Hahn,Leandro; Pilatti-Sant'Ana,Wilian Luan.
Data: | 2018-03-01
Ano: | 2018
Palavras-chave: | Biological nitrogen fixation; Forage grasses; Indole acetic acid (IAA); Rhizobacteria; Root nodules and symbiont; Soil microorganism.
Resumo: | Abstract Rhizobia are able to increase yield of non-leguminous species through production of phyto-stimulating substances. This study aimed to evaluate the inoculation effect of rhizobia UFRGS Lc348 and VP16 on millet and Sudan grass yield and germination, and verify the enrichment effect of culture medium with tryptophan, which leads on the rhizobium/plant interaction. Experiments in vitro and greenhouse conditions were conducted. In millet, the inoculation with VP16 grown in culture medium with or without tryptophan induces greater length of hypocotyl and epicotyl under in vitro conditions. UFRGS Lc348 treatment induces longer hypocotyls of millet under in vitro conditions. No effects were observed with the millet inoculation in greenhouse. In Sudan grass, inoculation with VP16 enriched with tryptophan increased dry matter in shoots of adult plants. In millet seedlings had achieved an increasing in elongation in vitro conditions, which could represent an adaptive advantage in the search for water and nutrients in the rhizospheric environment during the initial growth of millet. Similarly, if verified in field conditions, Sudan grass had achieved an increasing in greenhouse conditions with the inoculation of tryptophan-enriched VP16, which could be correlated with a significant gain in crop yield. Therefore, these relationships between tryptophan-enriched VP16 and Sudan grass should be verified in subsequent studies under field conditions.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122018000100133
Editor: | Universidad Nacional de Colombia
Relação: | 10.15446/acag.v67n1.55849
Formato: | text/html
Fonte: | Acta Agronómica  v.67 n.1 2018
Fonte: | info:eu-repo/semantics/openAccess