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根据温室内的人为控制温度试验,观测温度对羊草(Leymuschinensis)无性系分化和生长的影响,得出如下结论;温度是影响羊草株高的最主要生态因子,适宜的高温显著促进单草的伸展;温度也是促进单草分蘖的主要因子之一,羊草的生物量积累受到温度变化极值的限制,适宜的温度范围显著促进生物量积累.羊草无性系的分化和高温的天数明显正相关,无性系对高温有较强的生态适应性,甚至在高温已经抑制羊草生物量的积累的情况下,仍然对无性系的生长和分化有一定的促进作用,这充分表明了羊草无性系对温度有较强生态适应的特点.
According to the man-controlled temperature test in the greenhouse and the observed temperature on the differentiation and growth of Leymus chinensis clones, the following conclusions are drawn: Temperature is the most important ecological factor affecting the plant height of Leymus chinensis, The temperature is also one of the main factors to promote single tillering. The accumulation of biomass of Leymus chinensis is limited by the extreme temperature change, and the suitable temperature range can significantly promote the biomass accumulation. There was a clear positive correlation between the differentiation of Leymus chinensis clones and the number of days with high temperature. Clones had strong ecological adaptability to high temperatures. Even at high temperature, the accumulation of Leymus chinensis biomass had been inhibited, the clonal growth and differentiation were still A certain role in promoting, which fully demonstrated the Leymus chinensis climatic temperature has a stronger ecological adaptation characteristics.