关中平原高产苜蓿品种筛选

以"关中苜蓿"为对照,监测了"巨能601""丹农VNS""雷霆""巨能耐湿""北极熊"等10个苜蓿品种的物候期、株高、产草量、干鲜比和叶茎比,以期为关中平原筛选产草量高的优良苜蓿品种。结果表明:在降水量丰富的年份且可灌溉的关中平原,不同苜蓿品种均可正常生长发育,"巨能601"和"丹农VNS"不但产草量高,株高较低,干鲜比较低,且叶茎比较高。关中平原应以"巨能601"和"丹农VNS"作为主要推广品种,逐渐淘汰"关中苜蓿"。

Screening Test of Alfalfa Varieties With High Yield in Guanzhong Plain

‘Guanzhong alfalfa’ was the main alfalfa cultivar variety in Guanzhong Plain,but ‘Guanzhong alfalfa’ had low grass yield and poor grass quality.In order to select high yield alfalfa variety in Guanzhong Plain,taking ‘Guanzhong alfalfa’ as control,the phenological period,plant height,grass yield,dry-fresh ratio and leaf-stem ratio of 10 alfalfa varieties were monitored,including ‘Giant energy 601’‘Danon VNS’‘Thunderclap’‘Giant moisture tolerance’‘Polar bear’ and others.The results showed that different varieties of alfalfa all grew and developed normally in rainy year and irrigated Guanzhong Plain,‘Giant energy 601’ and ‘Danon VNS’ not only had higher grass yields,lower plant height,lower dry-fresh ratio,but also had higher leaf-stem ratio.Guanzhong Plain should take ‘Giant energy 601’ and ‘Dannon VNS’ as the main popularized varieties,and phase out ‘Guanzhong alfalfa’.