SciELO - Scientific Electronic Library Online

 
vol.68 número2Composição centesimal e teor de nitrato em cinco cultivares de alface produzidas sob cultivo hidropônicoAtividade pectinolítica de Colletotrichum gloeosporioides e a relação com a agressividade ao Stylosanthes spp índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Journal

Artigo

Indicadores

Links relacionados

Compartilhar


Bragantia

versão impressa ISSN 0006-8705versão On-line ISSN 1678-4499

Resumo

FANAN, Sheila; MEDINA, Priscila Fratin; CAMARGO, Marcelo Bento Paes de  e  GALBIERI, Rafael. Description of agronomic characteristics and harvest time evaluation in the yield of castor bean cultivar IAC 2028. Bragantia [online]. 2009, vol.68, n.2, pp.415-422. ISSN 0006-8705.  https://doi.org/10.1590/S0006-87052009000200016.

The crop of castor bean can be used like raw material for renewable energy, however, becomes necessary the use of agricultural machines adapted to its harvest. During the crop growth racemes are produced under different environmental conditions which can cause variations in productivity of the crop. The purpose of this work was to evaluate important agronomic characteristics to mechanical harvest as well as the effect of time of harvest in productivity of castor bean. The experimental design was arranged in a randomized block design with eleven treatments and five replications, with cultivar IAC 2028 , during the agricultural year of 2005/06 at the Centro Experimental Central, Instituto Agronômico (IAC), Campinas, São Paulo State, Brazil. Seed yield, number of fruits and seeds per raceme and mass of a thousand seeds were evaluated. In the evaluation of the agronomic characteristics was observed a great variability among the plants, what can complicate mechanical harvest. The results showed that the secondary raceme was the most influence to total productivity and the harvest of the racemes, fruits and seeds, in the conditions of this experiment, can be performed at only time with no decrease in yield.

Palavras-chave : Ricinus communis L.; racemes; physiological maturity.

        · resumo em Português     · texto em Português     · Português ( pdf )

 

Creative Commons License Todo o conteúdo deste periódico, exceto onde está identificado, está licenciado sob uma Licença Creative Commons