Seed germination of Chresta sphaerocephala DC. and Lessingianthus bardanoides (Less.) H. Rob. (asteraceae) from Cerrado

Autor(es)

Cury, Graziela ^[1] ; da Luz Coelho Novembre, Ana Dionisia ^[2] ; da Gloria, Beatriz Appezzato ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Dept Ciencias Biol, Escola Super Agr Luiz de Queiroz, BR-13418900 Piracicaba, SP - Brazil

^[2] Univ Sao Paulo, Dept Prod Vegetal, Escola Super Agr Luiz de Queiroz, BR-13418900 Piracicaba, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Brazilian Archives of Biology and Technology; v. 53, n. 6, p. 1299-1308, NOV-DEC 2010.
• Citações Web of Science: 2

Resumo

This work aimed to study the effects of different temperature conditions on the germination of L. bardanoides and C. sphaerocephala seeds, compare the germination rates of these two species and estimate the occurrence of embryoless seeds. The results indicated that the best temperatures for the germination of L. bardanoides seeds were 20, 25 and 20-30ºC and for C. sphaerocephala, 20-35ºC and 40.32 µmol m-²s-¹ irradiance; L. bardanoides had a higher germination rate since the number of seeds with embryos higher compared with C. sphaerocephala. (AU)

• Processo FAPESP: 00/12469-3 - Estudos morfológicos, anatômicos, histoquímicos e ultra-estruturais em plantas do Cerrado (Senso lato) do estado de São Paulo
• Beneficiário: Silvia Rodrigues Machado
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOTA - Temático