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以针阔混交林下球茎类植物轮叶百合(Lilium distichum)为试材,研究轮叶百合各器官生物量对其生长的影响。结果表明:在整个生长季节中,轮叶百合各器官生物量总体上先增加后减少,在7月末达到最大,8月以后球茎、茎叶和根的生物量不断减少,果实生物量不断增加。各器官生物量分配比的平均值为球茎>茎叶>根>花果,大量物质和能量被分配到地下球茎中(平均43.11%)。6月初,球茎生物量增长速率高于其器官,6月中旬球茎生物量首先出现负增长,8月份以后植株开始枯萎,各器官生物量均出现负增长。球茎、茎叶和根生物量分别与总生物量呈显著的线性正相关关系。以上分析说明,为了适应温带针阔混交林下光照等变化,球茎在轮叶百合整个生长季节中发挥了能量调节库的作用。
Under Lilium distichum (Lilium distichum) under the mixed coniferous and broadleaved forest, the effects of biomass on the growth of Lilium lily were studied. The results showed that during the whole growing season, biomass of all organs increased firstly and then decreased and reached the maximum at the end of July. After August, the biomass of bulbs, stems and leaves decreased continuously and the biomass of fruits increased continuously. The average biomass allocation ratio of organs was bulb> stem> root> flower and fruit, and a large amount of material and energy were distributed into the underground bulb (average 43.11%). In early June, the growth rate of bulb biomass was higher than that of its organs. In the middle of June, the biomass of bulbs first showed negative growth. After August, the plants began to wilt, and the biomass of all organs showed negative growth. There was a significant linear positive correlation between biomass and biomass of bulb, stem, leaf and root respectively. The above analysis shows that in order to adapt to changes in illumination under coniferous and broad-leaved coniferous forests, bulbs play a role as energy regulators throughout the growing season of leaf lily.