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	Provedor de dados Planta Daninha (1) Autor Arrieta-Espinoza,G. (1) Espinoza Esquivel,A.M. (1) Sánchez-Olquín,E. (1) Palavra-chave Anthesis overlapping (1) Growth stages (1) Red rice (1) Rice varieties (1) Tipo do documento Info:eu-repo/semantics/article (1) Ano 2007 (1) País Brazil (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 1 Primeira ... 1 ... Última Vegetative and reproductive development of Costa Rican weedy rice compared with commercial rice (Oryza sativa) Planta Daninha Sánchez-Olquín,E.; Arrieta-Espinoza,G.; Espinoza Esquivel,A.M.. The variability in the chronology of the vegetative and reproductive development of weedy rice complex has been little studied. However, a field trial was established to study the timing of growth stages of sixteen weedy rice morphotypes and five rice varieties of Costa Rica. Weedy rice presented a wide range of variation for all descriptors among and within morphotypes. Weedy rice was taller than the rice varieties during vegetative phase and showed a growth increase of 14-23 cm every two weeks. Six morphotypes emerged earlier than commercial rice varieties, but no differences where found between samples for the time required for starting tillering. Early emergence of weedy rice morphotypes was not associated with early flowering, thus no correlation was... Tipo: Info:eu-repo/semantics/article Palavras-chave: Anthesis overlapping; Growth stages; Red rice; Rice varieties. Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582007000100002 Registros recuperados: 1 Primeira ... 1 ... Última

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