Field trial was carried out in the Soudano-Guinean zone of Cameroon to investigate the effect of intercropping systems of castor bean with common bean and maize on their growth and yield. Randomized complete block des...Field trial was carried out in the Soudano-Guinean zone of Cameroon to investigate the effect of intercropping systems of castor bean with common bean and maize on their growth and yield. Randomized complete block design with three replications was used and five treatments： castor bean in monoculture or in association with common beans or maize, common bean in monoculture and in association with castor bean, maize in monoculture and in association with castor bean. The growth parameters and seed yield were evaluated. Castor beans associated with either maize or common bean grew faster compared to the monoculture system. In addition common bean exhibited fast growth and high seed yield when associated to castor bean, while, no significant difference was observed for maize. In conclusion, the culture of castor bean in association with common bean or maize is advantageous for the peasants in the Adamawa Cameroon region.展开更多
A new lignan glycoside, named （7S,8R,8＇R）-（-）-lariciresinol-9-O-a-L-rhamnopyranosyl （1-2） 13-D-glucopyranoside （1）,was isolated from the ethanol extract ofPilea cavaleriei Levi subsp, cavaleriei, together wit...A new lignan glycoside, named （7S,8R,8＇R）-（-）-lariciresinol-9-O-a-L-rhamnopyranosyl （1-2） 13-D-glucopyranoside （1）,was isolated from the ethanol extract ofPilea cavaleriei Levi subsp, cavaleriei, together with 17 known lignans （2-18）. The structuresof these compounds were elucidated by extensive spectroscopic analysis, including 1D NMR, 2D NMR and HR-ESI-MS.All the compounds were obtained from the genus Pilea for the first time.展开更多
文摘Field trial was carried out in the Soudano-Guinean zone of Cameroon to investigate the effect of intercropping systems of castor bean with common bean and maize on their growth and yield. Randomized complete block design with three replications was used and five treatments： castor bean in monoculture or in association with common beans or maize, common bean in monoculture and in association with castor bean, maize in monoculture and in association with castor bean. The growth parameters and seed yield were evaluated. Castor beans associated with either maize or common bean grew faster compared to the monoculture system. In addition common bean exhibited fast growth and high seed yield when associated to castor bean, while, no significant difference was observed for maize. In conclusion, the culture of castor bean in association with common bean or maize is advantageous for the peasants in the Adamawa Cameroon region.
文摘A new lignan glycoside, named （7S,8R,8＇R）-（-）-lariciresinol-9-O-a-L-rhamnopyranosyl （1-2） 13-D-glucopyranoside （1）,was isolated from the ethanol extract ofPilea cavaleriei Levi subsp, cavaleriei, together with 17 known lignans （2-18）. The structuresof these compounds were elucidated by extensive spectroscopic analysis, including 1D NMR, 2D NMR and HR-ESI-MS.All the compounds were obtained from the genus Pilea for the first time.
