畜牧与饲料科学 ›› 2019, Vol. 40 ›› Issue (12): 43-46.doi: 10.12160/j.issn.1672-5190.2019.12.009

• 草业科学 • 上一篇    下一篇

2种老芒麦种子发芽特性研究

田永雷1, 丁海君1, 赵和平2, 贾明1, 房永雨1, 慕宗杰3, 白春利1   

  1. 1.内蒙古自治区农牧业科学院草原研究所,内蒙古 呼和浩特 010031;
    2.内蒙古草都饲草料研究院,内蒙古 呼和浩特 010031;
    3.内蒙古自治区农牧业科学院农牧业经济与信息研究所,内蒙古 呼和浩特 010031
  • 收稿日期:2019-10-13 出版日期:2019-12-30 发布日期:2020-03-05
  • 通讯作者: 白春利(1980—),女,副研究员,博士,主要从事牧草栽培研究工作。
  • 作者简介:田永雷(1994—),男,研究实习员,硕士,主要从事牧草栽培研究工作。
  • 基金资助:
    国家重点研发专项“荒漠化退化草地治理技术及示范”子课题七“现代高效草业发展技术与产业化示范”(2016YFC0500604);国家重点研发计划专项(2016YFC050050702);内蒙古农牧业创新基金项目(2017CXJJM06)

Germination Characteristics of Seeds of Two Varieties of Elymus sibiricus

TIAN Yong-lei1, DING Hai-jun1, ZHAO He-ping2, JIA Ming1, FANG Yong-yu1, MU Zong-jie3, BAI Chun-li1   

  1. 1.Institute of Grassland Science, Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences, Hohhot 010031, China;
    2.Inner Mongolia Caodu Forage Research Institute, Hohhot 010031, China;
    3.Institute of Agricultural and Animal Husbandry Economics and Information, Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences, Hohhot 010031, China
  • Received:2019-10-13 Online:2019-12-30 Published:2020-03-05

摘要: 适合在内蒙古生长的多年生牧草优良栽培品种严重匮乏,是制约内蒙古草牧业健康发展和农牧民增收的瓶颈。针对该问题,采用“本土植物选育”方法,从内蒙古乌拉特前旗白音花镇大桦背采集野生老芒麦种子,经过人工引种栽培驯化成为适宜在内蒙古地区气候条件下推广种植的饲用和生态及经济价值较高的新品系老芒麦。研究以野生老芒麦为对照,对新品系老芒麦种子的种子形态、吸水能力、发芽特性等进行比较分析。结果表明,野生老芒麦的芒长、吸水量显著(P<0.05)高于新品系老芒麦;新品系老芒麦的发芽率、发芽势、发芽指数、种子活力均显著高于野生老芒麦;2个品种颖果长无显著差异。经过驯化后的新品系老芒麦芒长变短,发芽能力变强,更适合进行田间种植生产。

关键词: 野生老芒麦, 新品系老芒麦, 种子发芽特性

Abstract: The severe shortage of excellent perennial forage varieties suitable for planting in Inner Mongolia is a crucial factor restricting the healthy development of grassland and animal husbandry as well as the income increasement of farmers and herdsmen. In order to solve this problem, the 'native plant breeding' method was used to collect seeds of wild Elymus sibiricus from Dahuabei in Baiyinhua Town of Urad Front Banner of Inner Mongolia; after artificial introduction and domestication, a new strain of Elymus sibiricus suitable for popularization and cultivation under the climatic conditions of Inner Mongolia with high ecological and economic value was obtained. In this study, the comparative analysis of seed morphology, water absorption and germination characteristics of the new strain of Elymus sibiricus was carried out using the wild Elymus sibiricus as a control. The results showed that the awn length and water uptake of the wild Elymus sibiricus were significantly (P<0. 05) higher than those of the new strain of Elymus sibiricus; the germination rate, germination potential, germination index and seed vigor of the new strain of Elymus sibiricus were significantly (P<0. 05) higher than those of the wild Elymus sibiricus; there was no significant difference in caryopsis length between the two varieties. After domestication, the awn length of the new strain of Elymus sibiricus became shorter and its germination ability became stronger, which made it more suitable for field planting and production.

Key words: wild Elymus sibiricus, new strain of Elymus sibiricus, seed germination characteristics

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