Alocação de fotoassimilados marcados e relação fonte-dreno em figueiras cv. Roxo de Valinhos. 2. Tempo de alocação

Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-27T11:25:56Z No. of bitstreams: 0Bitstream added on 2014-05-27T14:41:49Z : No. of bitstreams: 1 2-s2.0-80053029581.pdf: 161459 bytes, checksum: b416ec4bef6467407acc237f64c80492 (MD5) Made available in DSpace on 2014-05-27T11:25:56Z (GMT). No. of bitstreams: 0 Previous issue date: 2011-07-01 Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) The work evaluated the translocation and allocation period of the photosynthates, using the carbon-13 stable marker, in Ficus carica L. cv. Roxo de Valinhos plants in the reproductive stage. A fig tree leaf considered adult was enriched with 13CO 2 for 30 minutes in a controlled atmosphere and the respective plants were collected after 6, 24, 48, 72, 120, 168 and 360 hours of enrichment. After the specified times, the plants parts (apical meristem, leaves, shoots, stem and root system) were evaluated to characterize the natural and enrichment isotopes in a mass spectrometer of isotopic reason. Naturally, the plant presented values of relative enrichment of δ 13C -27.92‰ (isotopic reference). The plant presented concomitant vegetative growth and reproductive stage, showing predominance in the 13C allocation in the meristems areas, followed by the reproductive organs, having the root system as the main reserve organ. Universidade Federal de Mato Grosso (UFMT) Instituto de Ciências Agrárias e Ambientais Campus de Sinop, Distrito Industrial, CEP 78550-000, Sinop-MT Universidade Estadual Paulista (UNESP) Faculdade de Ciências Agronômicas, Rua José Barbosa de Barros, 1780, Fazenda Lageado, CEP 18610-307, Botucatu-SP Universidade Federal Rural Do Rio de Janeiro (UFRRJ) Instituto de Agronomia Departamento de Fitotecnia, BR 465 Km 7, CEP 23851-970, Seropedica-RJ Universidade Estadual Paulista (UNESP) Instituto de Biociências Distrito de Rubião Júnior S/N., CEP: 18618-970, Botucatu-SP Bolsista de Produtividade em Pesquisa Do CNPq Universidade Estadual Paulista (UNESP) Faculdade de Ciências Agronômicas, Rua José Barbosa de Barros, 1780, Fazenda Lageado, CEP 18610-307, Botucatu-SP Universidade Estadual Paulista (UNESP) Instituto de Biociências Distrito de Rubião Júnior S/N., CEP: 18618-970, Botucatu-SP