多花黑麦草在扬州地区的生产性能评价

通过田间试验对10个多花黑麦草(Lolium multi folorum)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-...

Study on the production performance of Italian ryegrass varieties in Yangzhou region

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.