苇状羊茅

Key forage plants consist of alfalfa, erect milkvetch, tall fescue, perennial ryegrass, crownvetch, white clover, red clover alsike clover, common orchardgrass, smooth brome; planting divisions with obviously optimal combinations of forage plants in Henan province cover the following 6 respects:（1）Northern plain forage planting division;（2）North-west mountain area forage planting division;（3）Middle-east low lying plain and nan-yang basin forage planting division;（4）Western mountain area forage planting division;（5）Huaihe river-south and Tongbai mountain area forage planting division;（6）Eastern plain forage planting division;These conclusions will provide necessary theoritical data or base for right choose of foeage plants as well as great development of grass industry in the future in Henan province.

结果表明：适合河南省的当家草种有10种，分别是：紫花苜蓿、沙打旺、苇状羊茅、多年生黑麦草、小冠花、红三叶、杂三叶、鸡脚草、无芒雀麦；适合河南省草业优质发展的草种区域有6个，分别是：豫北平原牧草种植区、豫西北黄土丘陵和太行山地种植区、豫中东低洼平原和南阳盆地种植区、豫西山地种植区、淮南与桐柏山区种植区、豫东平原种植区，并且明确了各区域内以当家草种为核心的草种优化组合。河南省当家草种的制定和草种区划的确定有利于为河南省各地草种的正确选择和草业未来大发展提供理论依据。

The results of the study show the fatten efficiency of winter green grass on local cattle and goats. Liveweight gain per day of cattle and goat fed with green grass increased by 69 80% and 73 4% compared with those fed with straw.

为评价冬季青绿禾草苇状羊茅、扁穗雀麦、鸭茅、黑麦草等在牛羊育肥上的饲喂效果，通过饲养试验和屠宰测定等方法，研究了冬季青绿禾草对牛羊增重速度、山羊胴体性状和经济效益的影响。

The CAD of tall fescue, smooth brome and orchard grass in heading period is lower than that in booting stage.

苇状羊茅、无芒雀麦、鸭茅抽穗期的CAD低于孕穗期。

The content of fatty acid of 12 forage samples including alfalfa, tall fescue, orchard grass and smooth brome were analyzed.

对紫花苜蓿、苇状羊茅、鸭茅、无芒雀麦等12个饲草样品进行了脂肪酸含量的测定，并与豆油、菜籽油和棉籽油等植物油脂肪酸成分进行了比较。

In order to study the importance of high quality forage in the diet of dairy cow in perinatal period, the content of sodium, potassium, chloride, sulfur and the cation-anion difference of 12 forage samples including alfalfa, tall fescue, orchard grass and smooth brome were analyzed.

为探讨优质饲草在围产期奶牛日粮中的重要性，对紫花苜蓿、苇状羊茅、鸭茅、无芒雀麦等12个饲草样品进行了钠、钾、氯、硫含量的测定并进行了阴阳离子平衡分析。

Nitrogen use efficiencyⅠandⅡof Bromus inermis,Festuca arundinacea, Dactylis glomerata were higher, and they utilized nitrogen efficiently, and accumulated more nitrogen.

在低氮条件下，无芒雀麦、苇状羊茅、鸭茅氮效率Ⅰ和氮效率Ⅱ较高，其氮素利用效率较高，每天的氮素积累量较多。

As a result, synthesizing the comparison of the characteristics of drought resistance, cold tolerance, barren resistance and production of these ten grasses, we have found that the resistance of Bromus inermis,Festuca arundinacea was better , and consequently Bromus inermis , Festuca arundinacea were proofed to be favorable grasses for developing pasture in northern China in the future. Whereas, Bromus biebersteinii, Festuca rubra,Dactylis glomerata,Phleum pratense,Agropyron desertorum,Agropyron smithii,Elytrigia elongate and Phalaris arundinacea were worse, and therefore measures to local conditions and prudence in the production practice were advocated.

因此，综合抗旱性、耐寒性、耐贫瘠性及田间的生产性能的比较研究，10种牧草中的无芒雀麦、苇状羊茅的抗性表现较好，是今后我国北方地区进行人工草地建设的良好牧草种类；而草地雀麦、紫羊茅、沙生冰草、蓝茎冰草、长穗偃麦草、猫尾草、鸭茅和草芦表现不好，在生产实践中应因地制宜、谨慎推广。

In the aspect of grass cold tolerance, these ten grasses were classified into three types by the cluster analysis, based on winter survival adaptability and LT50 measured under low temperature treatment. High cold tolerance: Bromus biebersteinii,Bromus inermis,Festuca arundinacea, Agropyron desertorum,Elytrigia elongate, Phleum pretense; medium cold tolerance: Festuca rubra, Agropyron smithii,Dactylis glomerata; low cold tolerance: Phalaris arundinacea.

禾本科牧草在耐寒性方面，根据牧草越冬适应性表现和低温处理下用电导法得出的半致死温度， 10种牧草进行聚类分析结果表明：耐寒性强的是草地雀麦、无芒雀麦、苇状羊茅、沙生冰草、长穗偃麦草、猫尾草；耐寒性中等的是紫羊茅、蓝茎冰草、鸭茅；耐贫瘠性最弱的是草芦。

By the cluster analysis, 10 grasses were classified into three types—of high barren resistance: Bromus inermis,Festuca arundinacea, Dactylis glomerata; of medium barren resistance: Bromus biebersteinii,Phleum pratense,Phalaris arundinacea; of low barren resistance: Festuca rubra, Agropyron desertorum,Agropyron smithii,Elytrigia elongate.

对10种牧草进行聚类分析，得出耐贫瘠性强的是无芒雀麦、苇状羊茅、鸭茅；耐贫瘠性中等的是草地雀麦、猫尾草、草芦；耐贫瘠性最弱的是紫羊茅、沙生冰草、蓝茎冰草、长穗偃麦草。

In order to select a kind of eminent grass which is adaptable to the northern China, the present thesis studies ten kinds of grasses from Gramineae, Bromus biebersteinii,Bromus inermis,Festuca arundinacea ,Festuca rubra,Dactylis glomerata ,Phleum pratense,Agropyron desertorum,Agropyron smithii,Elytrigia elongate and Phalaris arundinacea,and also explores the physiological aspects of their drought resistance, cold tolerance and barren resistance. The drought resistance experiment was conducted to study 10 grasses under water stress during seedling stage by simulating indoor drought environment.

为了能选适应我国北方地区的抗旱、耐寒、耐贫瘠特性的优良牧草，本研究以草地雀麦、无芒雀麦、苇状羊茅、紫羊茅、沙生冰草、蓝茎冰草、长穗偃麦草、猫尾草、鸭茅、草芦为材料，在抗旱、耐寒和耐贫瘠性特性三方面的生理方面进行了探索研究。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。