9个国产优良紫花苜蓿品种在甘肃河西地区引种栽培研究

Adaptation of Different Domestic Alfalfa Varieties in Gaotai,Gansu Province

为促进甘肃省河西地区优良紫花苜蓿品种的引进,在甘肃省高台县对引进的9个国内优质苜蓿品种进行了定量灌溉、无追肥模式的区域试验,观测分析了各品种的产草量、株高和茎叶比等指标。结果表明:9个苜蓿品种在高台地区普遍生长良好,生育期差异不明显;3年平均株高甘农3号最高,为94.3 cm,草原3号最低,为82.5 cm,中苜1号、甘农3号3年平均株高均显著高于草原3号(P<0.05),其他各品种间差异均不显著(P>0.05);3年平均干草产量中苜1号最高,为238.41 kg/100 m^2,甘农8号最低,为200.08 kg/100 m^2,中苜1号、新牧1号3年平均干草产量均显著高于甘农8号(P<0.05),其他各品种间差异均不显著(P>0.05)。综合评价认为,供试9个苜蓿品种综合生产性能均较好,适宜在甘肃高台地区进行大面积推广。

Field experiment with 9 different domestic alfalfa varieties was periormed in Gaotai,Gansu province.Difference in yield,plant height,and stem/leave radio among all treatment were compared in the past 3 years.The result showed that 9 alfalfa varieties generally grew well in Gaotai,No significant difference in phenological period.In plant height,the highest one was Gannong No.3(94.3 cm),the lowest one was Caoyuan No.3(82.5 cm),the difference was significant(P<0.05);The hay yield of starting from the second year was at about 200 kg/100 m^2.The variety with the highest accumulated hay yield was Zhongmu No.1(238.41 kg/100m^2),the lowest was Gannong No.8(200.08 kg/100 m^2),the difference was significant(P<0.05).The nine varieties is good,which is suitable for large-scale promotion in Gaotai region of Gansu province.