SciELO - Scientific Electronic Library Online

 
vol.24 número2Water relations and dry matter partitioning of NaCl stressed furcraea species (Furcraea sp. Vent.)Evaluation of Bacillus thuringiensis Berliner proteins toxicity on cotton bollweevil Anthonomus grandis Boheman índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Journal

Artigo

Indicadores

Links relacionados

  • Em processo de indexaçãoCitado por Google
  • Não possue artigos similaresSimilares em SciELO
  • Em processo de indexaçãoSimilares em Google

Compartilhar


Agronomía Colombiana

versão impressa ISSN 0120-9965

Resumo

MORENO, Fernando; PLAZA, Guido A.  e  MAGNITSKIY, Stanislav V.. Effect of the seed coats on germination of rubber (Hevea brasiliensis Muell.) seeds. Agron. colomb. [online]. 2006, vol.24, n.2, pp.290-295. ISSN 0120-9965.

Commercial rubber (Hevea brasiliensis Muell.) tree growth has limitations at the seed production level. Seed collection, maintenance of seed quality, and low germination of seeds make it necessary to use high amounts of seeds for plant establishment. The objective of the present research was to identify the effect of the seed coats on germination of rubber seeds with the purpose of increasing percentage seed germination in rubber tree culture. The mechanical effect of testa on seed imbibition and germination was evaluated by partial or total removal of the seed coats. The following variables were evaluated in a completely randomised design (CRD): index of germination rate (IVG), percentage germination (PG), and the imbibition curve of seeds. The highest germination percentages and index of germination rate were found in seeds with testa completely removed. The values of imbibition rate allowed to identify the negative effect of the seed coats functioning as a barrier in the process of water uptake.

Palavras-chave : scarification; imbibition; testa permeability.

        · resumo em Espanhol     · texto em Espanhol     · Espanhol ( pdf )

 

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