WEED SEED-GERMINATION .3. BIDENS-PILOSA L

Authors
AMARAL A TAKAKI M
Citation
A. Amaral et M. Takaki, WEED SEED-GERMINATION .3. BIDENS-PILOSA L, Arquivos de biologia e tecnologia, 36(2), 1993, pp. 401-408
Citations number
NO
Categorie Soggetti
Biology
Journal title
Arquivos de biologia e tecnologia → ACNP
ISSN journal
03650979
Volume
36
Issue
2
Year of publication
1993
Pages
401 - 408
Database
ISI
SICI code
0365-0979(1993)36:2<401:WS.BL>2.0.ZU;2-S
Abstract
The germination of seeds of Bidens pilosa L. colected at different pla ces was analyzed by dose-response curves for induction and reversion o f germination in seeds pre-incubated at 25 degrees C or 36 degrees C d uring 24 hours. Our results indicate that phytochrome is responsible f or the control of seed germination id Bidens pilosa and the level of p re-existing active form of phytochrome (Pfr) above the threshold switc h the seed to germinate in darkness.