| 不同温度处理对呼伦贝尔天然草地3种野生豆科牧草种子萌发的影响 |
| |
| 引用本文： | 肖燕子,黄学文,乌仁其其格,孙林,丁霞,侯美玲,张培青.不同温度处理对呼伦贝尔天然草地3种野生豆科牧草种子萌发的影响[J].畜牧与饲料科学,2020,41(4):40-44. |
| |
| 作者姓名： | 肖燕子 黄学文 乌仁其其格 孙林 丁霞 侯美玲 张培青 |
| |
| 作者单位： | 呼伦贝尔学院农林学院,内蒙古 呼伦贝尔 021000;内蒙古自治区农牧业科学院,内蒙古 呼和浩特 010031;内蒙古农业大学沙漠治理学院,内蒙古 呼和浩特 010010;内蒙古民族大学农学院,内蒙古 通辽 028000 |
| |
| 基金项目： | 内蒙古自治区自然科学基金项目“发酵型TMR微生物多样性及品质调控研究”（2018LH03020）; 呼伦贝尔学院校级项目“优选不同扁蓿豆抗寒性评价研究”（2018BS47）; 呼伦贝尔市科技局项目资助“天然草地保护与生态修复技术集成与示范”（YYYFHZ201901） |
| |
| 摘 要： | 为研究呼伦贝尔天然草地野生牧草种子萌发特性,在不同温度条件下（15、20、25、30 ℃）对不同地区采集的扁蓿豆、斜茎黄芪和野火球3种野生牧草种子进行发芽试验,测定和分析野生豆科牧草种子各项发芽指标。结果表明：野生豆科牧草种子萌发率普遍较低,不同温度条件下对3种野生豆科牧草种子萌发有显著影响。扁蓿豆种子和野火球种子发芽率、发芽势、发芽指数和发芽速度均随温度升高呈上升趋势,在30 ℃时发芽指标最高;斜茎黄芪种子发芽率、发芽势、发芽指数和发芽速度随温度升高先上升后下降,在25 ℃时发芽指标最高。扁蓿豆种子活力指数在温度为20 ℃时最大,为14.53;斜茎黄芪活力指数在不同温度下为4.89~7.11,活力指数最高温度为25 ℃;野火球种子在30 ℃下活力指数最高,为18.04。综合考查各项指标,3种野生豆科牧草种子萌发最适温度为25~30 ℃。该试验结果为呼伦贝尔天然草地野生牧草种子萌发率提供理论依据。
|
| 关 键 词： | 呼伦贝尔 天然草地 野生豆科牧草 温度 种子萌发 |
| 收稿时间： | 2020-04-26 |
Effects of Different Temperature Treatments on Seed Germination of Three Species of Wild Leguminous Forages in Hulun Buir Natural Grassland |
| |
| XIAO Yan-zi,HUANG Xue-wen,Wurenqiqige,SUN Lin,DING Xia,HOU Mei-ling,ZHANG Pei-qing.Effects of Different Temperature Treatments on Seed Germination of Three Species of Wild Leguminous Forages in Hulun Buir Natural Grassland[J].Animal Husbandry and Feed Science,2020,41(4):40-44. |
| |
| Authors: | XIAO Yan-zi HUANG Xue-wen Wurenqiqige SUN Lin DING Xia HOU Mei-ling ZHANG Pei-qing |
| |
| Institution: | 1. College of Agriculture and Forestry,Hulun Buir University,Hulun Buir 021000,China; 2. Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences,Hohhot 010031,China; 3. College of Desert Control Science and Engineering,Inner Mongolia Agricultural University,Hohhot 010010,China; 4. College of Agriculture,Inner Mongolia University for Nationalities,Tongliao 028000,China |
| |
| Abstract: | The objective of this study was to investigate the germination characteristics of wild forage seeds in Hulun Buir natural grassland. Germination tests of three species of wild leguminous forage seeds, including Medicago ruthenica, Astragalus laxmannii and Trifolium lupinaster collected from different areas, were carried out under different temperature conditions （15 ℃, 20 ℃, 25 ℃ and 30 ℃）. The germination indicators of the selected forages were assessed and analyzed. The results showed that the seed germination rates of the three wild leguminous forages were generally low, and different temperatures had significant effects on germination of the seeds. The germination rate, germination energy, germination index and germination speed of Medicago ruthenica seeds and Trifolium lupinaster seeds were elevated with the increase of temperature, and the highest germination indicators were observed at 30 ℃; the germination rate, germination energy, germination index and germination speed of Astragalus laxmannii seeds were elevated at initial observation period and then reduced with the increase of temperature, and the highest germination indicators were found at 25 ℃. The highest seed vitality index （14.53） of Medicago ruthenica was observed at 20 ℃; the seed vitality index of Astragalus laxmannii ranged from 4.89 to 7.11 at different temperatures, and the highest value was found at 25 ℃; Trifolium lupinaster had the highest seed vitality index （18.04） at 30 ℃. Comprehensively, the suitable temperature for germination of the three species of wild leguminous forages was 25-30 ℃. The obtained results of this study provide a theoretical basis for improving germination rates of wild forage seeds in Hulun Buir natural grassland. |
| |
| Keywords: | Hulun Buir natural grassland wild leguminous forage temperature seed germination |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《畜牧与饲料科学》浏览原始摘要信息 |
| 点击此处可从《畜牧与饲料科学》下载免费的PDF全文 |
|
