Resumo
Calcium chloride at 1% was sprayed on the foliage of potted soybean plants of the Santa Rosa cultivar as a single application at 20, 40 or 60 days after germination or combined as two or three applications at the same dates. A single spray at 40 or 60 days after germination (10 days prior to or 10 days after full blooming) gave the best response. The number of pods per plant was increased by 16-20% and the soybean yield was increased by about 10%.
NOTAS
Aplicação de cálcio por via foliar na produção de grãos de soja
Effect of foliar application of calcium on soybean yield
Sandra dos Santos Sevá NogueiraI, * * Com bolsa de suplementação do CNPq. ; Joassy de Paula Neves JorgeII
ISeção de Fisiologia, IAC
IIDivisão de Plantas Alimentícias Básicas, Instituto Agronômico, IAC
SUMMARY
Calcium chloride at 1% was sprayed on the foliage of potted soybean plants of the Santa Rosa cultivar as a single application at 20, 40 or 60 days after germination or combined as two or three applications at the same dates.
A single spray at 40 or 60 days after germination (10 days prior to or 10 days after full blooming) gave the best response.
The number of pods per plant was increased by 16-20% and the soybean yield was increased by about 10%.
Texto completo disponível apenas em PDF.
Full text available only in PDF format.
Recebido para publicação a 21 de agosto de 1980.
- 1. BREWBAKER, J. L. & KWACK, B. H. The essential role of calcium ion in pollen germination and pollen tube growth. American Journal of Botany, 50(9) :859-865, 1963.
- 2. CHEN, S. & UEDA, R. Pollen morphology and germination in Narcissus. Botanical Magazine, Japan, 90:277-290, 1977.
- 3. MASCARENHAS, H. A. A.; KIIHL, R. A. S.; MIYASAKA, S.; SORDI, G. Efeito da calagem, aplicada de uma só vez ou parcelada, na produção de soja. Bragantia, Campinas, 33:57-61, 1974.
- 4. PENOT, M.; FLOCH, J. Y.; PENOT, M. Étude comparée de 1'absorption et de la redistribuition du 45Ca chez divers groupes de vegétaux. Planta, 129:7-14, 1976.
- 5. RINGOET, A.; SAUER, G.; GIELINK, A. J. Phloem transport of calcium in oat leaves. Planta, 80:15-20, 1968.
- 6. SHOSHIN, K. Physiological study on the mechanism of seed production of soybean plant. I. Influence on the chemical composition and seed production of nutrient element deficiency during the flowering stage. Crop Science Society of Japan, 36(2):238-247, 1967.
- 7. VAN GOOR, G. L. & WIERSMA, D. Redistribution of potassium, calcium, magnesium and manganese in the plant. Physiologia Plantarum, 31:163-168, 1974.
Datas de Publicação
-
Publicação nesta coleção
15 Dez 2007 -
Data do Fascículo
1981
Histórico
-
Recebido
21 Ago 1980
