川东地区白三叶引种适应性试验研究

从2003年开始.在四川达州试验点连续5年对拉丁诺和胡依阿两品种白三叶(Trifolium repens)生长发育、根系生长情况、茎叶比、草产量以及种子产量进行观察测定.结果表明,两品种较为适应川东地区的夏季高温伏早天气,能完成整个生育周期,全年生长,无明显枯黄期,青绿期320 d以上.越夏率100%.抗病力强;具有较...

Study on the adaptability of Trifolium repens in the East of Sichuan

The adaptability of two varieties,Ladinos and Huia,of Trifolium repens was studied in the Dazhou Fodder and Forage Grass Station of Sichuan Province from 2003 to 2008 by testing plant、root growth and development,the ratio of leaves to stem,grass and seed yields in the field,respectively.The results of this study indicated that both varieties adapted to the hot late summer weather in the Eastern Sichuan and were able to complete the reproductive cycle;there was no any obvious brown period during the growth period;the rate of oversummering was 100%;good disease-resistant;and with higher and stable grass yield.The annual average of fresh grass yield of Ladinos was 87 784 kg/ha;that of Huia was 89 865 kg/ha.The annual average of dry grass yield of Ladinos was 12 483 kg/ha;that of Huia was 12 847 kg/ha.Two varieties can be used as main plants for artificial grassland construction at high temperature and drought region of the Eastern Sichuan Province,but not suitable for seed production.