论文部分内容阅读
１９９２～１９９３年对多花黑麦草和苇状羊茅属间杂种及其后代的产草性能及品质进行了研究，结果表明：杂种Ｆ１植株生长慢，分蘖力差，鲜草及干物质产量极显著低于多花黑麦草（Ｐ＜０．０１），略高于苇状羊茅。饲草品质介于双亲之间。杂种后代选系８９１、８９２植株生长较快，分蘖力强，产草量最高，越夏前干物质产量分别为８３９９．５５ｋｇ／ｈｍ２和９３４６．２０ｋｇ／ｈｍ２。其饲草品质也较好，粗蛋白含量高，分别为１２．８０％和１３．３４％；酸性洗涤纤维及酸性洗涤木质素含量低。这表明杂种Ｆ１结合有双亲优良的产草性状及品质性状，是极好的育种材料，选系可用于替代生产上栽培的黑麦草。
The results showed that hybrid F1 plants grew slowly and had poor tillering ability. The yield of fresh grass and dry matter was very high in 1992-1993. Significantly lower than that of ryegrass (P <0.01), slightly higher than that of tall fescue. Forage quality is between parents. 891,892 hybrids of hybrid progenies had faster growth, stronger tillering ability and highest yield of grass. The dry matter production before summer was 8399.55kg / hm2 and 9346.20kg / hm2, respectively. Its forage quality is also good, crude protein content is high, respectively 12.80% and 13.34%; acidic detergent fiber and low acid detergent lignin. This indicates that F1 hybrids with excellent parental traits and quality traits parents, is an excellent breeding material, the election line can be used to replace the production of cultivated ryegrass.