陇东野生紫花苜蓿硬实种子处理方法研究  

Study on methods for treating hard seeds of wild Longdong alfalfa

作　　者：王娟[1] 师尚礼[1] 

机构地区：[1]甘肃农业大学草业学院草业生态系统教育部重点实验室中-美草地畜牧业可持续发展研究中心,甘肃兰州730070

出　　处：《草原与草坪》2011年第2期41-43,48,共4页Grassland and Turf

基　　金：公益性行业科研专项(201003023);国家牧草产业技术体系资助

摘　　要：以陇东野生紫花苜蓿种子为材料,采用机械法、98%浓硫酸处理法和不同浓度NAA引发处理法研究打破陇东野生紫花苜蓿种子硬实的效果。结果表明:用标准发芽法测定的发芽率仅为37%,各处理对破除种子硬实、提高发芽率的效果差异显著(P<0.05),其中划破种皮处理效果最佳,发芽率达到92%,其次是98%浓硫酸浸种30 min,发芽率达77%,NAA浓度为1.0 mg/L引发处理发芽率为63%,砂纸磨擦的发芽率为61%。Seeds of wild Longdong alfalfa（Medicago sativa）were treated with three methods（mechanic treatment,98% H2SO4 soaking treatment and hormone treatment）to find out the best method for breaking hard seed.The result indicated that the seed germination rate with routine method was only 37%.All three treatments significantly increased the germination rate.The mechanic treatment was the best and the germination rate was increased up to 92%.It was followed by 98% H2SO4 soaking treatment and the germination rate was 77%.

关 键 词：陇东野生紫花苜蓿 种子 硬实处理 

分 类 号：S54[农业科学—作物学] S35