Resumo
In this experiment we tried checked if there was variation in the oil percentage and moisture content in sunflower seed localized in different parts of sunflower (Helianthus annuus L.) head. Twenty heads from 'Record' variety, and ten from 'URL III' variety, both open-pollinated materials, were sampled. Each head was divided into three concentric ring-shaped zones and four samples were taken from each head, i. e., one from the central zone, one from the perimeter, and one from the intermediate zone. A fourth sample was taken from the mixture of the seeds from the hole head. The results obtained with these materials showed that the samples must be taken from the intermediate zone, if the results are to be used for selection of plants of better oil quantity. To analyze the moisture content, the seed sample should be taken from the hole head.
NOTA
Influência da localização da semente na porcentagem de óleo e no teor de umidade em capítulos de girassol
Influence of the seed position on the oil percentage and moisture content in the sunflower (Helianthus annuus L.) head
Luiz Antonio Ferraz MatthesI; Maria Regina Gonçalves Ungaro II
ISeção de Floricultura e Plantas Ornamentais, IAC
IISeção de Oleaginosas, Instituto Agronômico, IAC
SUMMARY
In this experiment we tried checked if there was variation in the oil percentage and moisture content in sunflower seed localized in different parts of sunflower (Helianthus annuus L.) head. Twenty heads from 'Record' variety, and ten from 'URL III' variety, both open-pollinated materials, were sampled. Each head was divided into three concentric ring-shaped zones and four samples were taken from each head, i. e., one from the central zone, one from the perimeter, and one from the intermediate zone.
A fourth sample was taken from the mixture of the seeds from the hole head. The results obtained with these materials showed that the samples must be taken from the intermediate zone, if the results are to be used for selection of plants of better oil quantity. To analyze the moisture content, the seed sample should be taken from the hole head.
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Full text available only in PDF format.
Recebida para publicação a 17 de setembro de 1980.
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1ASSOCIATION OF OFFICIAL AGRICULTURAL CHEMISTS. Official Methods of Analysis of the Association of Official Agricultural Chemists. l0ed. Washington, William Horwitz ed., 1965. 957 p.
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2MARTY, J. R.; DECAN, J.; MARTENS, C. L. Effects de l'irrigation sur la production et la qualité du tournesol. In: CONFERÉNCE INTERNATIONAL SUR LE TOURNESOL, 5., France, 1972. p.46-53.
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3ROLLIER, M. Étude des bésoins en eau du tournesol. Information Technique,44:29-44, 1975.
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4ZIMMERMAN, D. C. & FICK, G. N. Fatty acid composition of sunflower (Helianthus annuus L.) oil as influenced by seed position. Journal American Oil Chemical Society, 50:273-275, 1973.
Datas de Publicação
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Publicação nesta coleção
17 Dez 2007 -
Data do Fascículo
1983
Histórico
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Recebido
17 Set 1980
