不同红三叶品种在川中地区的生长适应性研究

为了筛选出适宜在四川省低海拔地区适应性较强的红三叶品种。2007-2011年采用随机区组设计，对3个红三叶品种进行农艺学性状观测。结果表明：3个红三叶都能适应该地区的气候和土壤条件；从物候期来看，3个品种差异不大，“自由”返青期较其他2个品种早；从农艺性状来看，“自由”具有植株高大、匍匐分枝数最多等特点，其次是“岷山”；从干草产量来看，4年平均产量“自由”(9795 kg/hm2)显著高于“岷山”和“巫溪”(P<0.05)，其次是“岷山”和“巫溪”，两者差异不显著；从田间表现来看，“自由”在3个参试品种综合表现最佳，是该地区的首推红三叶品种，其次是“岷山”和“巫溪”。

The Compared Experiment of Different Red Clover Varieties in the Middle of Sichuan

For screening Red clover variety of high adaptability in the area low elevation of Sichuan.The compared experiment for three Red clover varieties of agronomic characteristics was studied from 2007 to 2011.The results showed that the three Red clovers adapted the district well.The phenophase of ＂ Freedom ＂ turning green stage had the earliest of three clover;＂ Freedom ＂ had prostrated branch number with tall plant height,and that of ＂ Minshan ＂.The average hay yield of ＂ Freedom ＂ had the highest（9795 kg/hm 2）.The hay yield of ＂ Freedom ＂ was significant（P0.05） to ＂ Minshan ＂ and ＂ Wuxi ＂,＂ Minshan ＂ and the difference of ＂ Wuxi ＂ wasn ＇ t significant.Taking one with another,the Red clover ＂ Freedom ＂ was the most adapted and most fertility species,the adaptation of Red clover from strong to poor was ＂ Freedom ＂,＂ Minshan ＂,＂ Wuxi ＂.