Superação de dormência em sementes de feijão Bravo-do-Ceará (Canavalia brasiliensis)
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Data
1995-06
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Editor
Antônio Henrique Garcia
Resumo
Canava/ia brasi/iensis has a great potential as green manure in Brazilian Savanna. Toe species gives nitrogen to subsequent crops and produces excellent dry matter. 0n the other side, even under suitable environrnent conditions, severa! seeds don't gerrninate dueto the impermeable seed coat. This triai aimed to identify different treatrnents for dormancy breaking. Some scrub methods were tried: a) manual remova! of distal portion of the seed, with or without distilled water soaking; b) seed immersion on boiling water for 30, 60, 180, 300 and 600 seconds; e) seed immersion on HS04 for 5, 10, 15, 20, 30, 40, 50 and 60 minutes; d) therrnal impact (24 h at 25 ºC followed by 24 h at 5 °C or 40 °C, then returning to 25 'C); e) alcohol immersion for 5, 15, 30 and 60 min.; f) control. Treatrnents that provided better gerrnination were: remova! of distal portion with and without water soaking (99.6 and 99.2% germination, respectively), H2S04 for 60 min. (95.9%) and boiling water for 60 and 30 sec (97.7 and 94.8% gerrnination, respectively).
Descrição
Palavras-chave
Leguminosa, Adubo verde, Cerrado, Green manure, Savanna, Leguminosae
Citação
AMABILE, Renato Fernandes; GARCIA, José; DUARTE, João Batista; SILVA, José Carlos Sousa;FARIAS NETO, Austeclínio Lopes de. Superação de dormência em sementes de feijão Bravo-do-Ceará (Canavalia brasiliensis). Anais da Escola de Agronomia e Veterinária, Goiânia, v. 25, n. 1, p. 69-76, jan./jun. 1995. Disponível em: <https://www.revistas.ufg.br/pat/article/view/2737/2749>.