Submersão De Sementes De Feijão Do Grupo Preto E Desenvolvimento Inicial De Plântulas

Ogawa, Nathalia Shizue; Seneme, Adriana Martinelli; Ferriani, Áurea Portes; Mendonça, Cristina Gonçalves de

doi:10.3738/1982.2278.1644

Cited by 4 publications

(5 citation statements)

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“…However, submersion in water limits the free diffusion of oxygen and may cause germination to cease (Ogawa et al 2016). This fact may have contributed to the low germination rates observed, since the growth of the embryonic axis takes place at a high respiratory rate, in order to guarantee both free energy and carbon skeletons to activate the germination process.…”

Section: Resultsmentioning

confidence: 99%

Priming effect on the physiological potential of maize seeds under abiotic stress1

Gouveia

Binotti

Costa

2017

Pesqui. Agropecu. Trop.

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Abiotic stress directly influences seed performance, so poor-vigor seeds under adverse conditions tend to show lower germination speed and rate. By controlling the hydration level of seeds (i.e., priming) with the addition of chemical agents, it is possible to elicit the maximum physiological potential of seeds, even under stress conditions. This study aimed to evaluate the priming effect of different chemical agents on the physiological potential of maize seeds under abiotic stress (polyethylene glycol induced water stress, hypoxia, low temperature and salt stress after controlled deterioration). The experimental design was completely randomized, in a 5 x 2 factorial scheme, consisting of different chemical agents used to hydrate the seeds [control without priming; control primed with water; calcium nitrate (0.2 %); amino acid L-phenylalanine (0.05 %); amino acid L-phenylalanine (0.5 %) + calcium nitrate (0.2 %)] and 2 seed lots, with four replicates. Priming with calcium nitrate lead to a greater germination and higher emergence rate of the seedlings under suboptimal temperature conditions, and seeds that underwent controlled deterioration showed greater germination levels with the use of calcium nitrate + phenylalanine in the priming process, regardless of the lot used. In general, seed priming allowed a greater expression of seed vigor, even though an interaction with lots was observed in some variables.

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Section: Resultsmentioning

confidence: 99%

Priming effect on the physiological potential of maize seeds under abiotic stress1

Gouveia

Binotti

Costa

2017

Pesqui. Agropecu. Trop.

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“…Among the tested treatments, FC and CAD resulted in a fast seed imbibition, whereas the priming techniques (PI and BP) provided controlled imbibition. Ogawa et al (2016) investigated black bean seed submersion and early plant development and observed seedling damage for soaking times from four hours onwards. The authors suggested that the abrupt entry of water into the seed causes hypoxia or anoxia, inverting the respiratory pathway from The treatments that provided controlled soaking, using the scenario proposed by the imbibition curve (Figure 1), performed better in the vegetative and reproductive assessments, particularly PI7, PI14, BP0, BP7 and BP28, which remained to the right of the PC1.…”

Section: Resultsmentioning

confidence: 99%

Snap bean production from seeds treated with Bacillus subtilis

Ibanhes Neto,

Freiria,

Silva

et al. 2023

Pesqui. Agropecu. Trop.

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In order to ensure an adequate final stand and good yields in agricultural crops, a fast healthy seedling establishment in the field is essential and can be improved using seed treatment techniques. This study aimed to assess the effect of treating snap bean seeds with Bacillus subtilis doses on the development and yield components of the crop. Seeds of a determinate variety were used. A 4 × 4 + 1 factorial scheme was applied, being four seed treatments (film coating with and without drying, pre-imbibition and biopriming), four doses of B. subtilis-based commercial product (c.p.) (0, 7, 14 and 28 mL c.p. kg−1 of seed) and an absolute control. The analyzed variables were seed moisture content, seedling emergence, leaf length, width and area, plant height and height to first pod at harvest, number of trifoliate leaves and pods, pod length and number of grains per pod, and pod fresh and dry weight. The pre-imbibition and biopriming treatments were equal or superior to the absolute control. Associating these treatments with doses of 7-14 mL c.p. kg−1 for pre-imbibition and 0-28 mL c.p. kg−1 for biopriming favors both the traits assessed during the reproductive stage and the yield components of the snap bean.

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“…O feijão-caupi (Vigna unguiculata (L.) Walp) é um dos principais alimentos das populações de regiões tropicais e subtropicais do país (SILVA et al, 2016) por possuir elevado valor energético (PEREIRA et al, 2015). No entanto, a baixa produtividade da cultura é influenciada principalmente pela baixa qualidade das sementes utilizadas na ocasião da semeadura (SILVA et al, 2014;OGAWA et al, 2016), pois a cultura requer, principalmente, que o seu cultivo esteja associado ao uso de sementes de alta qualidade fisiológica (SILVA et al, 2014).…”

Section: Introductionunclassified

“…Diversos são os fatores que podem ocasionar problemas germinativos na cultura do feijão-caupi, dentre esses estão o período e as condições de temperatura e umidade no armazenamento (ARAÚJO et al, 2021), condições climáticas, em que a disponibilidade de água para as sementes está diretamente relacionada com a germinação e emergência (OGAWA et al, 2016), genótipo, ocorrência de injúrias mecânicas, adequação das operações de secagem e beneficiamento (MARCOS FILHO, 2013).…”

Section: Introductionunclassified

Pré-tratamento com luz em sementes armazenadas de Feijão-Caupi beneficia a germinação e uniformidade de crescimento

et al. 2021

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O armazenamento adequado de sementes de feijão-caupi é uma etapa essencial para a conservação de sementes com alta qualidade fisiológica. Desse modo, é necessário buscar formas alternativas que, associadas às condições de armazenamento, auxiliem na preservação para o melhor desempenho das sementes. Objetivou-se testar pré-tratamentos com luz aliados ao hidrocondicionamento em sementes armazenadas de feijão-caupi (Vigna unguiculata (L.) Walp.), verificando a influência destes na qualidade fisiológica das sementes. A metodologia adotada no experimento constou de uma pesquisa experimental, em que sementes de feijão-caupi foram submetidas a hidrocondicionamento e pré-tratamentos com diferentes regimes de luz (branca, escuro, vermelho, vermelho extremo, verde e azul) por um período de 5h, seguidos de secagem por 48h. As variáveis analisadas foram: emergência, índice de velocidade de emergência, comprimento da parte aérea e raiz, massa seca da parte aérea e raiz. O delineamento experimental utilizado foi o inteiramente casualizado em esquema fatorial 5 x 6 (períodos de armazenagem: 40, 80, 120, 160 e 200 dias, associados aos regimes de luz: branca, escuro, vermelho, vermelho extremo, verde e azul). Os resultados indicam que os regimes de luz azul, vermelho e vermelho extremo exercem efeitos no crescimento e desenvolvimento de plântulas de feijão-caupi ao longo do armazenamento. Conclui-se que os pré-tratamentos com luz azul, vermelho e vermelho extremo podem ser utilizados em sementes de feijão-caupi, no entanto, o efeito dos pré-tratamentos nas sementes é reduzido no decorrer do tempo de armazenamento.

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Submersão De Sementes De Feijão Do Grupo Preto E Desenvolvimento Inicial De Plântulas

Cited by 4 publications

References 0 publications

Priming effect on the physiological potential of maize seeds under abiotic stress1

Priming effect on the physiological potential of maize seeds under abiotic stress1

Snap bean production from seeds treated with Bacillus subtilis

Pré-tratamento com luz em sementes armazenadas de Feijão-Caupi beneficia a germinação e uniformidade de crescimento

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