不同材料组合覆盖对油茶叶片生理指标的影响

Effects of Physiological Indexes of Oil-tea Camellia Covered with Different Materials

为了解白膜与不同材料组合覆盖对油茶夏季生长的影响,选择3种立地类型的油茶进行白膜和谷壳、木屑、遮阳网上下组合覆盖试验,在夏季温度最高时段对油茶生理指标进行测定。结果表明:不同立地和不同覆盖方法对油茶叶片生理指标影响极显著,不同覆盖方法与不同立地交互作用对油茶叶片生理指标影响极显著。未垦区和红壤区白膜上面覆盖谷壳叶片含水率较高,砂砾区木屑上面覆盖白膜叶片含水率较高;未垦区谷壳上面覆盖白膜油茶叶片电导率和丙二醛含量较低,红壤区和砂砾区未覆盖油茶叶片电导率较小,红壤区未覆盖和砂砾区谷壳上面覆盖白膜油茶叶片丙二醛含量较低;未垦区谷壳上面覆盖白膜或者白膜上面覆盖木屑,红壤区未覆盖及砂砾区木屑上面覆盖白膜油茶叶片中可溶性糖含量较低;未垦区直接覆盖白膜或者谷壳上面覆盖白膜,红壤区谷壳上面覆盖白膜,砂砾区白膜上面覆盖遮荫网的油茶叶片中可溶性蛋白含量较低。

In order to understand the effect of growth covered oil-tea camellia with combination of white film and other different materials in summer,carried out covering experiment,white film was placed under or above wood chips,chaff or shading net upper in three kinds of site types,then measured physiological indexes of leaves at the highest temperature time in summer.The results showed that：the effects of physiological indexes of leaves in different sites covered with different coverage methods were significant,effects of physiological indexes of leaves different mulching methods and different site interactions were significant too;the water content of leaves was highest when covered with chaff above white film in non-reclamation area and red soil area,covered with white film above wood chips in the gravel area;the leaves conductivity and malondialdehyde content were lowest when covered with white film above chaff,leaves conductivity was lowest covered with noting in the red soil area and gravel area,the leaves malondialdehyde content was lowest when covered with noting in the red soil area and covered with white above chaff in gravel area;the soluble sugar content of leaves was lowest when covered with white film or white film above wood chips in non-reclamation area,covered with noting in the red soil area and covered with white film above wood chips in gravel area;the soluble protein content of leaves was lowest when covered with white film or covered with white film above chaff in non-reclamation area,covered with white film above chaff in the red soil area,covered with shading net above white film in gravel area.