Year: 1999
Type: article
Abstract: The potential for seed bank formation of two perennial weed species, Ipomoea asarifolia (Desr.) Roem. & Schult. (Convolvulaceae) and Stachytarpheta cayennensis (Rich.) M. Vahl (Verbenaceae), both common in Amazonia , was evaluated in a degraded pasture area in eastern Brazilian Amazonia . Seeds were enclosed in nylon mesh packets and placed at the soil surface or buried at 5 or 10 cm deep. The number of viable seeds was recorded at 6, 10, 14 and 18 months after burial. Results showed that S. cayennensis has the ability to form persistent soil seed bank, while I. asarifolia seeds do not build up in the soil seed bank. For S. cayennensis and, to some extent, for I. asarifolia, seed survival was highest at greater burial depths.
Source: Planta Daninha
Author: Moacyr B. Dias-Filho
Institution: Embrapa Amazônia Oriental
Language: English
Subfield: Plant Science
Domain: Life Sciences
SDGs: Life on land, Zero hunger
Open Access status: gold
Estimated APC paid: $57
OpenAlex ID: W2117112205