【摘要】 采用分期播种的方法 ,研究了秋播紫羊茅的株高生长动态和分蘖动态 ,并建立了模拟模型。研究结果表明 ,温暖的气候有利于紫羊茅株高生长 ,而凉爽的气候可促进其分蘖 ,但炎热与低温气候均不利于紫羊茅幼苗生长 ;秋播紫羊茅在生育期 15～ 35d时株高生长较快 ,35d之后 ,株高生长速率减慢 ,分蘖速率加快 ;秋播紫羊茅的株高生长动态可用 Y=a+b/ x模型模拟 ,分蘖动态可用逻辑斯谛模型模拟更多还原

【Abstract】 Plant height and number of tillers of autumn sown Festuca rubra were monitored and simulation models were established. The results showed that warmer weather was favourable for F.rubra elongation and cooler weather was suitable for tillering. It was neither beneficial for shoot elongation and tillering when the temperature was >28℃ or <10℃. The shoot elongation could be expressed as Y=a+b/x and the tillering could be simulated by logistic model.更多还原