摘要
通过田间试验对10个多花黑麦草(Lolium multifolorum)在江苏扬州地区的生产性能进行比较,测定并分析与生产性能有关的生长速度、分蘖能力、茎叶比、鲜草产量等性状。结果表明,在扬州地区冬闲田秋播种植多花黑麦草可刈割3次,生长天数约230 d;参试品种的第1茬、第2茬从分蘖到拔节再到孕穗期均表现为"慢-快-慢"的生长节律,第3茬分蘖到拔节期生长速度快,拔节到孕穗期生长速度较慢,各品种之间的生长速度存在较大差异;聚类分析表明,安哥斯1号、双筒枪、特高等同属于生产性能好的一类品种,其田间表现为生长速度快,分蘖能力强,产草量高等,综合性状优良,适宜在扬州地区大面积推广种植。
The productive adaptability of 10 varieties of Italian ryegrass in Jiangsu Yangzhou region were studied in present study, and the traits related to performance and production from full range, such as growth rate, tillering capacity, leaf ratio, fresh yield were analyzed. The results showed that the ryegrass growing in winter-free field in the Yangzhou region could be cut three times during the growth period approximately 230 days The first and second crop of the test varieties, from tillering to jointing then to booting showed slow-fast-slow of growth rhythm. In the third crop of test varieties, a fast growth rate was observed during tillering to jointing stage, but slow growth rate at the jointing to booting. There was significant difference of growth rate among tested species; and cluster analysis showed Angus 1, Double Barrel and Tetragol presented a high production, fast growth rate and higher tillering ability, indicating some good comprehensive properties, and suit for planting in Yangzhou region.
出处
《草业科学》
CAS
CSCD
北大核心
2011年第3期388-392,共5页
Pratacultural Science
基金
国家科技支撑计划项目"暖温带地区优质高抗牧草新品种选育及产业化示范"(2008BADB3B10)
国家"863项目(2008AA10Z149)"
国家自然科学基金项目(30972136)
关键词
多花黑麦草
品种比较
生长速度
聚类分析
Italian ryegrass varietal yield test
growth rhythm
cluster analysis
