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| Provedor de dados: |
Agronomy
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| País: |
Brazil
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| Título: |
Production and mass partitioning in Peruvian carrot plants grown under artificial shading period and intensity - doi: 10.4025/actasciagron.v33i2.6099
Production and mass partitioning in Peruvian carrot plants grown under artificial shading period and intensity - doi: 10.4025/actasciagron.v33i2.6099
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| Autores: |
Barrella, Tatiana Pires; UFV
Puiatti, Mario; UFV
Santos, Ricardo Henrique Silva; UFV
Cecon, Paulo Roberto; UFV
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| Data: |
2011-04-11
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| Ano: |
2011
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| Palavras-chave: |
5.01.03.00-8 Arracacia xanthorrhiza
Arracacha
Intercropping
Light effect 5.01.03.06-7 Arracacia xanthorrhiza
Arracacha
Intercropping
Light effect
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| Resumo: |
Due to its long production cycle, the Peruvian carrot has been cultivated on marginal land, resulting in low yields. Intercropping is an option for planting in better areas, but there is a lack of research on crop shade tolerance. This study aimed to evaluate the effect of period and intensity of artificial shading on mass partitioning and root yield on Peruvian carrot ‘Amarela de Carandaí’. The treatments were four shading intensities (18, 30 and 50% of shading with Sombrite® cover and full sun), imposed either from 30 to 120, or from 30 to 210, or from 120 to 210 days after planting (DAP), totaling 10 treatments at harvest (210 DAP), with four repetitions. Light restriction above 18% from 30–210 DAP and from 120–210 DAP reduced marketable root yield. The marketable root yield was less reduced when shading was imposed earlier (30–120 DAP) than later (120-210 DAP) on the growth cycle. Regarding light competition, Peruvian carrot should be intercropped with crops that promoted up to 50% of shading from 30-120 DAP, or up to 18% of shading from 120 to 210 or 30-120 DAP.
Due to its long production cycle, the Peruvian carrot has been cultivated on marginal land, resulting in low yields. Intercropping is an option for planting in better areas, but there is a lack of research on crop shade tolerance. This study aimed to evaluate the effect of period and intensity of artificial shading on mass partitioning and root yield on Peruvian carrot ‘Amarela de Carandaí’. The treatments were four shading intensities (18, 30 and 50% of shading with Sombrite® cover and full sun), imposed either from 30 to 120, or from 30 to 210, or from 120 to 210 days after planting (DAP), totaling 10 treatments at harvest (210 DAP), with four repetitions. Light restriction above 18% from 30–210 DAP and from 120–210 DAP reduced marketable root yield. The marketable root yield was less reduced when shading was imposed earlier (30–120 DAP) than later (120-210 DAP) on the growth cycle. Regarding light competition, Peruvian carrot should be intercropped with crops that promoted up to 50% of shading from 30-120 DAP, or up to 18% of shading from 120 to 210 or 30-120 DAP.
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| Tipo: |
Pesquisa
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| Idioma: |
Português
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| Identificador: |
http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/6099
10.4025/actasciagron.v33i2.6099
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| Editor: |
Universidade Estadual de Maringá
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| Formato: |
application/pdf
application/pdf
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| Fonte: |
Acta Scientiarum. Agronomy; v. 33, n. 2 (2011); 321-326
Acta Scientiarum. Agronomy; v. 33, n. 2 (2011); 321-326
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| Direitos: |
DECLARATION OF ORIGINALITY AND CESSATION OF COPYRIGHTI Declare that current article is original and has not been submitted for publication, in part or in whole, to any other national or international journal. I also declare that once published in the Acta Scientiarum. Agronomy, a publication of the Universidade Estadual de Maringá, it will not be submitted by me or by any co-author to any other scientific communication mean. In my name and in the name of co-authors, I shall cede the copyright of the above mentioned article to the Universidade Estadual de Maringá and I declare that I know that the non-observance of this norm may make me liable for the penalties contemplated in the Law for the Protection of Authors’ Rights (Act 9609 of the 19th February 1998).
DECLARACIÓN DE ORIGINALIDAD Y CESIÓN DE DERECHOS DE AUTOR Declaro que el presente artículo es original, no fue sometido a la publicación en cualquier otro periódico nacional o internacional, sea en parte o en su totalidad. Declaro, aun, que una vez publicado en la revista Acta Scientiarum. Agronomy, editado por la Universidad Estadual de Maringá, éste jamás será sometido por mí o por cualquier uno de los demás coautores a cualquier otro periódico. A través de este instrumento, en mi nombre y en nombre de los demás coautores, por ventura existentes, cedo los derechos de autor del referido artículo a la Universidad Estadual de Maringá y declaro estar informado de que la no observancia de este compromiso someterá al infractor las sanciones y penas previstas en la Ley de Protección de Derechos de Autor (Nº9609, de 19/02/98).
DECLARAÇÃO DE ORIGINALIDADE E CESSÃO DE DIREITOS AUTORAISDeclaro que o presente artigo é original, não tendo sido submetido à publicação em qualquer outro periódico nacional ou internacional, quer seja em parte ou em sua totalidade. Declaro, ainda, que uma vez publicado na revista Acta Scientiarum. Agronomy, editada pela Universidade Estadual de Maringá, o mesmo jamais será submetido por mim ou por qualquer um dos demais co-autores a qualquer outro meio de divulgação científica. Através deste instrumento, em meu nome e em nome dos demais co-autores, porventura existentes, cedo os direitos autorais do referido artigo à Universidade Estadual de Maringá e declaro estar ciente de que a não observância deste compromisso submeterá o infrator a sanções e penas previstas na Lei de Proteção de Direitos Autorias (Nº9609, de 19/02/98).
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