狗牙根C-6新品系在新疆地区的适应性研究

Study on Adaptability of New Cynodon dactylon Line C-6 in Xinjiang

绿色期短、抗寒性差是狗牙根在新疆及世界冬季较寒冷地区推广应用的主要限制因子,因此引进、筛选绿色期长、抗寒性强的新品种(系)是狗牙根草坪草在干旱,缺水并冬季较寒冷的新疆等类此地区推广应用的关键[1]。狗牙根C-6是新疆农业大学2009年从国外引进驯化的新品系。该品系最大的特点是绿色期长(205天),抗寒性、抗旱性强,较耐盐碱、抗热、耐践踏、质地较细、植株较低矮、繁殖力强、养护管理费很低等特点。概述了狗牙根C-6的引种、驯化过程、形态特征、抗逆性、坪用性、栽培技术。为该品种的开发利用提供科学依据。

The short green period and poor cold resistance are the main limiting factors for the popularization and ap- plication of Cynodon dactylon in Xinjiang and the cold regions of the world in winter. Therefore, the introduction and selection of new Cynodon dactylon varieties with long green period and cold hardiness are essential to popularize Cynodon dactylon in Xinjiang and similar places where is very drought and cold. Cynodon dactylon C-6 is a new va- riant introduced from abroad by researchers of Xinjiang Agricultural University in 2009. The strain is characterized by the longest green period （205 days）, cold resistance, drought resistance, salt tolerance, heat resistance, tramp- ling resistance, fine texture, low plant height, high reproductive ability and low management fee. In this paper the introduction and domestication of Cynodon dactylon C-6, morphological characteristics, stress resistance, plant- ability, and cultivation techniques were summarized. It will provide the scientific basis for the development and utili- zation of Cynodon dactylon C-6.