草业学报2011，Vol.20Issue(5)：231-236,6.
常德市鸡眼草生物学特征及危害特性的研究
Study on biology characteristics and harmfulness of Kummerowia striata in Changde
摘要
Abstract
The biology characteristics and harmfulness of Kummerowia striata were investigated. The highest plant height was (10. 76±0. 73) cm, the lowest (4.15±0. 55) cm, and the average (6. 46±2. 58) cm. The lon gest main stem length was (22. 33±3. 31) cm, the shortest (9. 02±0. 74) cm and the average (12. 07±4. 61) cm. The maximum winding number was 61il8.16, the least 14±4.16 and the average 27±15. 44. The lon gest branch length was (7. 34±1. 26) cm, the shortest (4. 31+0. 77) cm and the average (5. 29± 1. 25) cm. The maximum number of seeds was 334±138. 06, the least 51±24. 24, and the average 120±97. 83. The max imum root distribution area was (1 587. 79±979.15) cm2, the minimum (101. 65±32. 67) cm2, and the aver age (352. 68±595. 96) cm2. The longest root branch was (6. 78±2. 08) cm, the shortest (3. 35+0. 90) cm and the average (4. 28±1. 38) cm. The most root branches were 15±6. 96, the least 7±0. 58 and the average 10± 3. 24. The maximum plant coverage was (23. 89 ±11. 09)%, the minimum (2. 44±0. 96)% and the average (6. 71±7. 86)%. The maximum planting density was 6±2. 49, the minimum 4± 1. 00, and the average 5± 1. 58. A few associated plants of K. striata with low density and coverage also occurred.关键词
常德市/鸡眼草/生物学特征/危害特性Key words
Changde/ Kummerowia striata / biology characteristics/ harmfulness分类
农业科技引用本文复制引用
王云,向群,彭友林..常德市鸡眼草生物学特征及危害特性的研究[J].草业学报,2011,20(5):231-236,6.基金项目
湖南省科技厅项目(06CK3049),常德市科技局项目(2008SK01)和湖南文理学院创新团队项目(05CX01)资助. （06CK3049）
