Effects of cutting at different reproductive development stages on aftermath growth of red clover (Trifolium pratense) in a subtropical montane environment
Effects of cutting at different reproductive development stages on aftermath growth of red clover (Trifolium pratense) in a subtropical montane environment
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亚热带山地环境下不同生殖发育阶段砍伐对红三叶草后生生长的影响
DOI：
10.1080/00288233.2004.9513588
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发表时间：
2004
影响因子：
1.8
通讯作者：
W. Harris
中科院分区：
文献类型：
--
作者：
J. Fan;H. Zhong;W. Harris
摘要本文综述了红三叶草（Trifolium pratense）在中国南方亚热带山区的使用情况，并为在重庆市无锡县红赤叶调查当地栽培品种“无锡”红三叶草生殖发育不同阶段扦插对后期生长的影响进行了初步研究。繁殖阶段为分枝、花芽形成、开花和种荚形成。刈割后达到规定繁殖阶段所需的时间、刈割时牧草的高度和产量随刈割次数的增加而减少。干物质积累速率最大的是分枝期和花芽形成期。花蕾期扦插产量最高，达13 380 kg DM ha - 1，豆荚期扦插产量最低，为10 480 kg DM ha - 1。建议第一次采收应在春季生长开始后70天左右，第二次、第三次和第四次采收应在前一次采收后50、30和35天进行。
Abstract The use of red clover (Trifolium pratense) in subtropical montane areas of southern China is reviewed as a preliminary to an investigation, at Hongchiba, Wuxi County, Chongquing, of the effects on aftermath growth of cutting at different stages of reproductive development of a local cultivar ‘Wuxi’ red clover. The reproductive stages were branching, flower bud formation, flowering, and seed pod formation. The time taken to reach the defined reproductive stages after cutting, and the height of herbage and yield at cutting, became less with successive cuts. The greatest rate of dry matter accumulation was during the branching and flower bud formation stages. Cutting at the flower bud stage produced the highest total yield of 13 380 kg DM ha−1 and cutting at the pod stage the least yield of 10 480 kg DM ha−1. It is recommended that the first cut should be made about 70 days after the start of spring growth, and the second, third, and fourth harvests 50, 30, and 35 days after the previous harvests.