论文部分内容阅读
在河西走廊灌区对12个适宜于灌溉条件下种植的速生型紫花苜蓿材料的粗蛋白(CP)、饲喂价值(RFV)2项营养指标及单株生长高度、单株分枝数、鲜草产量、干草产量、茎叶比、植株数目6项农艺性状指标进行测定,并采用灰色关联度法对12个紫花苜蓿材料从产量、营养品质及综合生产性能3个方面分别进行综合评价。结果表明:在产量指标综合评价中,G材料、新疆大叶紫花苜蓿和I材料排名前3位;在营养指标综合评价中,新疆大叶紫花苜蓿、I材料排名前2位,排名第3位的是H材料,G材料排名第4位;生产性能指标综合评价中,G材料、新疆大叶紫花苜蓿、I材料排名前3位。综合3个方面的评价结果,G材料、新疆大叶紫花苜蓿、I材料表现优异,适宜在河西走廊灌溉地区大范围推广种植。
In the Hexi corridor irrigation area, 12 fast-growing alfalfa cultivars planted under irrigation were selected for their nutritive value of crude protein (CP), feed value (RFV), height of plant, branch number per plant, fresh grass Yield, hay yield, ratio of stems and leaves, and number of plants were measured. Sixteen alfalfa cultivars were comprehensively evaluated in terms of yield, nutritional quality and comprehensive performance by gray relational method. The results showed that G material, Xinjiang big-leaf alfalfa and I material ranked the top three in the comprehensive evaluation of yield indicators. In the comprehensive evaluation of nutrition indexes, the Xinjiang big-leaf alfalfa and I material ranked the top 3 and ranked No. 3 Is the H material, G material ranked No. 4; comprehensive evaluation of production performance indicators, G materials, Xinjiang big leaf alfalfa, I material ranked the top three. Based on the evaluation results of three aspects, G material, Xinjiang big leaf alfalfa, I material performance is excellent, suitable for a wide range of planting in Hexi Corridor irrigation areas.