2009
DOI: 10.1590/s0101-31222009000100006
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Estádios de colheita e repouso pós-colheita dos frutos na qualidade de sementes de mamoneira

Abstract: O presente trabalho teve como objetivo avaliar o efeito dos estádios de colheita e do repouso pós-colheita dos frutos na qualidade de sementes de mamoneira (Ricinus communis L.) cultivar AL Guarany 2002. Foram avaliadas 9 épocas de colheita dos racemos, dos 30 até 142 dias após a antese (DAA), em intervalos de 14 dias e quatro condições de repouso: sem e com repouso de sete dias de sementes extraídas (nuas), de frutos e de frutos presos ao racemo. Foram avaliados a cor de frutos e de sementes; o teor de água, … Show more

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Cited by 13 publications
(10 citation statements)
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References 9 publications
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“…Sena and Gariglio (1998) and Germaque et al (2002) reported that color change of fruits is a good indicator to assist in identifying the harvest stage of several species. The criterion of fruit color as an indicator of physiological seed quality was recommended to harvest seeds of Ricinus communis when fruits were brown colored (Silva et al, 2009) as well as for several species as reported by Aquino et al (2006) in Peltophorum dubium, for Machaerium brasiliense by Guimarães and Barbosa (2007), and by Aguiar et al, (2007) for Caesalpinia echinata, when fruits of these species were in transition from green to brown preceding the spontaneous opening.…”
Section: Resultsmentioning
confidence: 99%
“…Sena and Gariglio (1998) and Germaque et al (2002) reported that color change of fruits is a good indicator to assist in identifying the harvest stage of several species. The criterion of fruit color as an indicator of physiological seed quality was recommended to harvest seeds of Ricinus communis when fruits were brown colored (Silva et al, 2009) as well as for several species as reported by Aquino et al (2006) in Peltophorum dubium, for Machaerium brasiliense by Guimarães and Barbosa (2007), and by Aguiar et al, (2007) for Caesalpinia echinata, when fruits of these species were in transition from green to brown preceding the spontaneous opening.…”
Section: Resultsmentioning
confidence: 99%
“…Isto concorda com o fato da época de semeadura afetar a qualidade de sementes de mamona (QUEIROGA; BELTRÃO, 2004). Contudo, na cultivar Al Guarany 2002, que apresenta máxima qualidade fisiológica das sementes aos 86 dias após a antese (DAA), não há redução de germinação se a colheita daquelas for realizada aos 128 DAA (SILVA et al, 2009). Em soja, a qualidade fisiológica e sanitária das sementes foi influenciada pelas cultivares e épocas de semeadura, onde a antecipação daquela para o final de outubro promoveu maior deterioração das sementes por umidade, danos mecânicos e incidência de patógenos, enquanto que o retardamento para o final de dezembro aumenta os danos mecânicos (PEREIRA et al, 2000).…”
Section: Resultsunclassified
“…The color of the fruit, due to the easiness of visualization, is a characteristic used to indicate seeds maturation (Borges et al, 2016;. In some species of dry fruits, results showed that the brown color is associated with the maturation point and, consequently, better performance of seeds germination (Aquino et al, 2006;Guimarães & Barbosa, 2007;Silva et al, 2009). However, for Astrocasia jacobinensis the seeds of green fruits had higher germination performance (82.5%) than those obtained from brown fruits (21.3%), corroborating with the study of Aguiar et al (2007) with Caesalpinia echinata Lam.…”
Section: Discussionmentioning
confidence: 99%