以大别山1号油茶（ Camellia oleifera Abe1．）为研究对象，分析了7个不同树龄植株枝条和叶片的主要化学成分。结果表明：在冬季，随着树龄增加，油茶叶片束缚水自由水质量比、游离脯氨酸质量分数、、叶木质素质量分数均呈先上升后略降低的趋势。其中叶片束缚水自由水质量比和游离脯氨酸质量分数在50年生油茶达到最大值，分别为0．091和1281．4μg/g；枝、叶苯-醇抽提物质量分数随树龄增长均降低，叶片综纤维素质量分数无明显变化；枝、叶纤维素以及可溶性糖质量分数与树龄呈正相关。在一定的范围内，随树龄的增加，油茶体内束缚水自由水质量比、可溶性糖、游离脯氨酸等相关指标值多呈上升趋势（但多数100年生衰老植株指标略下降），从而有助于增强植株的抗逆性。因此，今后在生产实践中应加强对抗逆性较弱的幼年油茶（2、3、5年生）植株的养护管理，调节其生长环境，避免逆境伤害。%The experiment was conducted to analyze the main chemical composition of shoots and leaves of Dabieshan Mountain Camellia oleifera Abe1.among seven different ages.C.oleifera leaves bound water/free water ratio, free proline, shoot holo-cellulose as well as shoot and leaf lignin content increased at first and then declined slightly with the increasing of tree age.The leaves bound water/free water ratio and free proline content reached the highest in 50 years old, 0.091μg/g and 1 281.4μg/g, respectively.With the increasing of tree age, shoot alcohol benzene extractive content declined.The leaf holo-cellulose content did not change significantly.There was a positive correlation between the shoot, the leaf cellulose, the soluble sugar content and tree age.In conclusion, within a certain range, the correlative indexes such as leaves bound water/free water ratio, free proline and soluble sugar rose with the increasing of tree age, which was beneficial for impro-ving stress resistance of plant.Therefore, we should pay special maintenance management on the young plants topromote their stress resistance and provide better microenvironment .
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