Harvest periods and post-harvest resting period over physics characteristics of fruits and seeds in castor bean

Authors

  • Líbia Belisário da Silva Universidade Estadual de São Paulo
  • Cibele Chalita Martins Universidade Estadual de São Paulo

DOI:

https://doi.org/10.5433/1679-0359.2009v30n4Sup1p999

Keywords:

Phenology, maturation, Ricinus communis, AL Guarany 2002

Abstract

This study aimed to assess the effect of harvesting times and of post-harvest resting period on physical characteristics of fruits and seeds of castor bean (AL Guarany 2002 genotype) and to verify if theses characteristics could be used to identify the ideal harvest time. Nine times of raceme harvest were assessed from 30 to the 142 days after anthesis (DAA) at fourteen days intervals, and four conditions of resting; (without and with seven days of resting period of seeds extracted (bare), from fruits and fixed to the racemes). It was evaluated water content, seed thickness, and length, width, and weight of fresh fruits and seeds, and seedling emergence in sand. The statistical design was completely randomized with four replications. The harvest times and the post-harvest rest period affected the physical characteristics of fruits and seeds of castor bean but none of these have proved to be effective in the identification of the ideal harvest time.

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Author Biographies

Líbia Belisário da Silva, Universidade Estadual de São Paulo

Engª. Agrª. Mestranda em Produção e Tecnologia de Sementes - FCA/UNESP.

Cibele Chalita Martins, Universidade Estadual de São Paulo

Profª Drª Depto. de Agricultura/Melhoramento Vegetal, FCA/UNESP.

Published

2009-12-29

How to Cite

Silva, L. B. da, & Martins, C. C. (2009). Harvest periods and post-harvest resting period over physics characteristics of fruits and seeds in castor bean. Semina: Ciências Agrárias, 30(4Sup1), 999–1008. https://doi.org/10.5433/1679-0359.2009v30n4Sup1p999

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