ALLELOPATHIC INFLUENCE OF AQUEOUS EXTRACT OF Sapindus saponaria L. ROOT ON BARNYARDGRASS AND MORNINGGLORY

作者：Grisi Patricia Umeda^*; Juliano Gualtieri Sonia Cristina; R**** Marli Aparecida; de Santana Denise Garcia

来源：Bioscience Journal, 2013, 29(3): 760-766.

• Allelopathy
• Echinochloa crus-galli (L.) Link
• Ipomoea grandifolia (Dammer) O'Donell
• Soapberry

The aim of this study was to evaluate the allelopathic potential of aqueous extract of Sapindus Saponaria L. (soapberry) root on diaspore germination and seedling growth of Echinochloa crus-galli (L.) Link (barnyardgrass) and Ipomoea grandifolia (Dammer) O'Donell (morningglory). The aqueous extract was prepared in a proportion of 100 g of dry plant material in 1000 mL of distilled water, resulting in 10% concentration. The dilutions were made with distilled water to 7.5, 5.0 and 2.5%. The root extract of S. saponaria did not inhibit the germination of the barnyardgrass and morningglory diaspores. The highest allelopathic activity occurred on seedlings growth, being evidenced by the high rate of abnormal seedlings, reduction in shoot length and mainly on root length. The inhibitory effect was concentration-dependent and varied with the receptor species studied.

• 出版日期2013-6