Aplicação foliar de molibdênio em feijoeiro: conteúdo do nutriente na semente e desempenho das plantas originadas
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Data
2011-06
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Editor
Alexsander Seleguini
Resumo
The production of seeds with high molybdenum (Mo)
content is a practical and inexpensive way of supplying its
plants with this micronutrient. The objectives of this study were
to estimate the relation among Mo rates sprayed over common
bean plants cultivated in soil with pH of 6.1 and Mo contents in
seeds of the Ouro Negro cultivar, and evaluate the performance
of plants originated from those seeds. For that, two trials were
carried out at the Zona da Mata region, Minas Gerais state, Brazil.
In the first trial, plants were sprayed with 0 g ha-1, 90 g ha-1,
250 g ha-1, 500 g ha-1, 750 g ha-1, and 1,000 g ha-1 of Mo and the
seeds had their Mo contents evaluated. In the second one, plants
from seeds with four Mo contents (0.262 ±0 .060 μg, 1.595 ±
0.281 μg, 1.960 ± 0.804 μg, or 2.648 ± 0.190 μg), combined with
either 0 g ha-1 or 90 g ha-1 of Mo were evaluated. The Mo content
of seeds increased 0.217 μg, for each 100 g increase in the Mo
rate. For 90 g ha-1 of Mo, there was no significant difference on
chlorophyll readings, in response to the seed Mo content. Without
Mo, the chlorophyll readings, at 40 DAE, increased linearly with
the increase of seed Mo content.
Descrição
Palavras-chave
Phaseolus vulgaris, Clorofilômetro, Teor de molibdênio na semente, Chlorophyll meter, Seed molybdenum content
Citação
VIEIRA, Rogério Faria; FERREIRA, Alexandre Cunha de Barcellos; PRADO, Adalgisa Lelis do. Aplicação foliar de molibdênio em feijoeiro:
conteúdo do nutriente na semente e desempenho das plantas originadas. Pesquisa Agropecuária Tropical, Goiânia, v. 41, n. 2, p. 163-169, abr./jun. 2011. Disponível em: <https://www.revistas.ufg.br/pat/article/view/8535>.