Aim To investigate the chemical constituents of Salvia cavaleriei Levi. var. erythrophylla （Hemsl.） Stib. Methods Compounds were isolated by silica gel column chromatography and Sephadex LH-20 gel column chromatogra...Aim To investigate the chemical constituents of Salvia cavaleriei Levi. var. erythrophylla （Hemsl.） Stib. Methods Compounds were isolated by silica gel column chromatography and Sephadex LH-20 gel column chromatography, and the structures were identified by spectral analysis. Result Five compounds were identified as 3β, 6β, 23-trihydroxyolean-12-en-28-oic acid （1）, ursolic acid （2）, n-heptadecanoic acid （3）, n-octadecanoic acid （4）, and β-sitosterol （5）. Conclusion Five compounds were isolated from the plant for the first time.展开更多
This study aimed to screen suitable species of Pennisetum purpureum for planting in northern Guangxi Zhuang Autonomous Region. During 2012-2014, a comparative field trial was carried out in Lingyun County of Baise Cit...This study aimed to screen suitable species of Pennisetum purpureum for planting in northern Guangxi Zhuang Autonomous Region. During 2012-2014, a comparative field trial was carried out in Lingyun County of Baise City in northern Guangxi to compare plant height, yield, stem-leaf ratio and nutrient composition am-ong Pennisetum purpureum Schumab cv. Purple, P. purpureum Schum cv. Guimin and P. purpureum Rich ＆#215; P. americana King grass cv. Reyan No.4. The results in-dicated that average annual fresh yield of P. purpureum Schumab cv. Purple reached 141.4 t/hm2, which was 2.3 t/hm^2 higher than that of P. purpureum_Rich×P. americana_King grass cv. Reyan No.4; both average annual fresh yield of these two species was lower than that of P. purpureum Schum cv. Guimin. Stem-leaf ratio of P. purpureum Schumab cv. Purple was the lowest （1.17）, which was 17.8% lower compared with P. purpureum Schum cv. Guimin, with significant differences （P〈0.05）, indicating that P. purpureum Schumab cv. Purple had more leaves. Crude protein content of P. purpureum_Schumab cv. Purple was slightly lower than that of P. purpureum Rich×P. americana_King grass cv. Reyan No.4, while P. purpureum Schumab cv. Purple was superior to P. purpureum Schum cv. Guimin and P. pur-pureum Rich ×P. americana_King grass cv. Reyan No.4 in other indicators. Specifi-cal y, P. purpureum Schumab cv. Purple contained 26.6% of dry matter, 39.1% of nitrogen-free extract and 2.9% of crude fat.展开更多
文摘Aim To investigate the chemical constituents of Salvia cavaleriei Levi. var. erythrophylla （Hemsl.） Stib. Methods Compounds were isolated by silica gel column chromatography and Sephadex LH-20 gel column chromatography, and the structures were identified by spectral analysis. Result Five compounds were identified as 3β, 6β, 23-trihydroxyolean-12-en-28-oic acid （1）, ursolic acid （2）, n-heptadecanoic acid （3）, n-octadecanoic acid （4）, and β-sitosterol （5）. Conclusion Five compounds were isolated from the plant for the first time.
基金Supported by Major Project of Science and Technology in Guangxi Zhuang Autonomous Region(GK AA16380026)Special Fund for Innovation Team Building in Guangxi Zhuang Autonomous Region from Modern Agricultural Industry Technology System of China(nycytxgxcxtd-09-04)Project of Processing and Application Demonstration of High-yielding Forage Grass Products in South China(GYMK 201633019)~~
文摘This study aimed to screen suitable species of Pennisetum purpureum for planting in northern Guangxi Zhuang Autonomous Region. During 2012-2014, a comparative field trial was carried out in Lingyun County of Baise City in northern Guangxi to compare plant height, yield, stem-leaf ratio and nutrient composition am-ong Pennisetum purpureum Schumab cv. Purple, P. purpureum Schum cv. Guimin and P. purpureum Rich ＆#215; P. americana King grass cv. Reyan No.4. The results in-dicated that average annual fresh yield of P. purpureum Schumab cv. Purple reached 141.4 t/hm2, which was 2.3 t/hm^2 higher than that of P. purpureum_Rich×P. americana_King grass cv. Reyan No.4; both average annual fresh yield of these two species was lower than that of P. purpureum Schum cv. Guimin. Stem-leaf ratio of P. purpureum Schumab cv. Purple was the lowest （1.17）, which was 17.8% lower compared with P. purpureum Schum cv. Guimin, with significant differences （P〈0.05）, indicating that P. purpureum Schumab cv. Purple had more leaves. Crude protein content of P. purpureum_Schumab cv. Purple was slightly lower than that of P. purpureum Rich×P. americana_King grass cv. Reyan No.4, while P. purpureum Schumab cv. Purple was superior to P. purpureum Schum cv. Guimin and P. pur-pureum Rich ×P. americana_King grass cv. Reyan No.4 in other indicators. Specifi-cal y, P. purpureum Schumab cv. Purple contained 26.6% of dry matter, 39.1% of nitrogen-free extract and 2.9% of crude fat.
