王草新品种的生物学特性与营养价值

培育大量的适应不同地区和不同气候条件栽培的优质牧草新品种。用美洲狼尾草与非洲象草进行远源杂交，德育出了适应亚热带气候条件栽培的热带牧草王草新品种，并大田观察其生物学特性。研究结果表明：新品种生长旺盛、产草量高、根系发达保持水土能力强，具有良好的适应性与抗逆性。在我国南方亚热带霜冻小于30d的地区可安全越冬。营养成分分析表明，其蛋白质含量和干物质含量明显高于同类热带牧草品种。因此，从王草新品种的产量、营养成分、抗逆性能综合来看，是一种极具开发价值的优质牧草新品种。

Biological Character and Nutritional Value of The New Breed of Pannisetum Pureum

The new breed of pennisetum pureum tropical forage grass has been cultured which is accustomed to the sub tropic climate condition via introduction and choosing of hybridization. The new breed is not only excellent in growing property and mass production, which is about one time higher than the same kind of tropical forage grass, but also has a strong adaptability. It has a good anti adversity fastness and can live through the winter in the sub tropic region of China. It has a strong ability of keeping the soil and water on the earth. It is indicated from the analysis of nutritional ingredient that the content of protein and dry substance is much higher than the same kind of tropical forage grass. It is a new kind of high quality forage grass which has very high exploitable value when we consider the production, nutrition, ingredients, fastness of pennistetum pureum.