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本文以贮藏10年的和田大叶紫花苜蓿(Medicago sativa cv.Hetiandaye)种子为试验材料,研究温度对紫花苜蓿种子发芽特性的影响。选用培养皿滤纸法,设置10、15、20、25℃4个温度处理,在培养箱中进行种子萌发试验。结果表明发芽率和发芽势随温度升高呈先增高后下降的趋势,2项指标均以15℃处理最高;发芽指数以25℃处理最高,根长也以25℃处理最长;贮藏10年的和田大叶苜蓿种子发芽率和发芽势仍可达到79.4%和78.2%。紫花苜蓿种子贮藏10年后仍有较高的发芽能力,15℃处理和田大叶紫花苜蓿发芽特性最佳,为苜蓿播种生产提供参考依据。
Abstract：Effects of temperature on germination of alfalfa were studied. The material was the seed of Medicago sativa cv. Hetiandaye that has stored 10 years. In the germination test, the temperature treatments were adopted including 10 ℃, 15 ℃, 20 ℃ and 25 ℃. The seed germination test of Hetian alfalf was carried out at different temperatures and in the incubator by using Petri dish filter paper. The results showed that both germination rate and germinating energy were increased, and then decreased with the temperature rising.It had the highest germination rate and germinating energy at 15 ℃. There were the highest germination index and root length at 25 ℃... The germination rate and germination potential of Hetian alfalfa seeds stored for 10 years can reached 79.4% and 78.2%, respectively. These results suggest that alfalfa seed is resistant to storage, it had the highest germination rate and germinating energy at 15 ℃. this paper would provide some theoretical references for quality improvement of alfalfa.
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基本信息:
DOI：10.16863/j.cnki.1003-6377.2017.06.008
中图分类号:S541.9
引用信息:
[1]王琰,张树振,王玉祥,等.温度对和田大叶苜蓿种子萌发的影响[J].草食家畜,2017,No.187(06):38-42.DOI:10.16863/j.cnki.1003-6377.2017.06.008.
基金信息:
新疆维吾尔自治区高校科研计划项目(XJEDU2016S048); 国家牧草现代产业技术体系项目(CARS35)
2017-11-10
2017-11-10