狗牙根种质资源在渝西地区的生态适应性评价  

The ecological adaptability evaluation of Bermudagrass germplasm in western Chongqing

作　　者：尹权为[1,2] 曾兵[3] 张新全[4] 张璐璐[1,2] 

机构地区：[1]重庆市畜牧技术推广总站,重庆401121 [2]西南大学研究生学院,重庆400716 [3]西南大学荣昌校区动物科学系,重庆402460 [4]四川农业大学草业科学系,四川雅安625014

出　　处：《草业科学》2009年第5期174-178,共5页Pratacultural Science

基　　金：重庆市十一五重大专项(CSTC;2008AA1020CSTC;2008AB1125);西南大学荣昌校区博士基金(No.08BSr06)

摘　　要：通过对种植于荣昌的狗牙根Cynodon dactylon试验材料应用"9分制"评分法进行打分开展综合评价,结合叶长、叶宽等形态指标的观测,对比分析7个狗牙根品种(系)在生长发育期的表现,反映其在渝西地区自然生态环境下的适应性强弱。结果表明TIFWAY、SAU9936极显著优于其他5个品种(系),而SAU02014与SAU02011、SAU9928间无显著差异,但他们显著优于南京、SAU9926,其综合评定得分为:TIFWAY>SAU9936>SAU02014>SAU02011>SAU9928>南京>SAU9926。供试的狗牙根7个品种(系)在渝西地区自然生态环境下都完成整个生育期,有比较强的适应性,其中TIFWAY、SAU9936适应性最强,其次是SAU02014、SAU02011,再次是SAU9928、南京,SAU9926最差。The ecological adaptability of seven hermudagrass germplasm was analyzed in Rongehang by scoring and observation of morphological indexes such as leaf length and leaf width. The seven accessions at growth period showed different ecological adaptability in the west of Chongqing. The result indicated that ＂TIFWAY＂ and ＂SAU9936＂ were significantly surpass other five accessions, SAU02014, SAU02011, and SAU9928 had no remarkable difference, but they obviously surpass Nanjing and SAU9926. The synthesis evaluation score was： TIFWAY〉 SAU9936〉SAU02014 SAU02011〉 SAU9928〉 Nanjing〉SAU9926. Seven accessions could complete the entire life history under the natural ecological environment in west Chongqing. TIFWAY and SAU9936 had the strongest adaptability, followed by SAU02014, SAU02011,SAU9928 and Nanjing; SAU9926 were the poorest.

关 键 词：狗牙根 种质资源 渝西地区 生态适应性 评价 

分 类 号：S688.4[农业科学—观赏园艺]