Data/hora: 02/06/2024 09:35:03

Provedor de dados: | 74
País: | Brazil
Título: | Mode of reproduction of Brazilian species of Adesmia (Leguminosae)
Autores: | Tedesco,Solange B.; Dall'Agnol,Miguel; Schifino-Wittmann,Maria Teresa; Valls,José F.M.
Data: | 2000-06-01
Ano: | 2000
Resumo: | Mode of reproduction was studied in 15 species of Adesmia DC. (Leguminosae). In six species, three treatments were used: mutual pollination, mechanical stimulation and control. Fifty-four plants of these six species were grown in a greenhouse, individually isolated in nylon screen boxes. Flowers were labelled and submitted to the different treatments. In addition, the frequency of spontaneous self-pollination in the absence of pollinators was studied in 200 plants of nine other species. These 200 plants were kept in a greenhouse, which avoided contact with any possible pollinator. Adesmia bicolor, A. muricata, A. punctata and A. riograndensis produced seed both by cross- and self-pollination. Adesmia punctata and A. riograndensis need mechanical stimulation for self-pollination. Adesmia incana reproduced by self-pollination; however, the possibility of cross-pollination cannot be totally ruled out. Adesmia tristis reproduced mainly by cross-pollination and a mechanism of self-incompatibility is suggested. Among the nine species that were not exposed to pollinators, A. securigerifolia produced a large amount of seed, indicating that it is a self-pollinating species. Adesmia arillata, A. araujoi, A. ciliata, A. psoraleoides, A. rocinhensis, A. reitziana, A. sulina and A. vallsii did not produce any seed under the experimental conditions, suggesting that they are cross-pollinated or that they need mechanical stimulation to reproduce.
Tipo: | Info:eu-repo/semantics/other
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572000000200038
Editor: | Sociedade Brasileira de Genética
Relação: | 10.1590/S1415-47572000000200038
Formato: | text/html
Fonte: | Genetics and Molecular Biology  v.23 n.2 2000
Fonte: | info:eu-repo/semantics/openAccess