摘要
为了研究林茶(南酸枣-茶树)复合系统和纯茶园条件下茶树光合特性的差异,在浙江省开化县对这两种生境条件下茶树叶片光合与荧光特征参数进行了测定。结果表明:纯茶园茶树的最大净光合速率(Pma)x、光补偿点(LCP)、光饱和点(LSP)和暗呼吸速率(Rd)与林茶复合系统的茶树没有显著差异(P>0.05),仅表观量子效率(AQE)显著高于林茶复合系统茶树(P<0.05);纯茶园茶树的PSⅡ最大光化学效率(Fv/Fm)、有效光化学效率(Fv'/Fm')、PSⅡ潜在活性(Fv/F0)和非光化学猝灭系数(qN)与林茶复合系统茶树之间也没有显著差异(P>0.05),仅光合电子传递速率(ETR)和光化学猝灭系数(qP)则显著高于林茶复合系统茶树(P<0.05)。研究结果表明,在试验采用南酸枣的株高、密度和种植行向的情况下,南酸枣-茶复合系统未显著影响茶树对光能的利用效率。
In order to clarify the differences in photosynthesis characteristics of tea tree between forest-tea （Choerospondias axillaris-Camellia sinensis） compound system and pure tea plantation, the photosynthetic parameters and fluorescent parameters of tea leaves from the two habitats were studied in Kaihua County, Zhejiang Province. The results showed that the maximum net photosynthetic rate （Pmax）, light compensation point （LCP）, light saturation point （LSP） and dark respiration rate （Rd） of tea tree had no significant differences between pure tea plantation and forest-tea compound system （P〉0.05）, but the apparent quantum efficiency （AQE） of tea tree in pure tea plantation was significantly higher than that in forest-tea compound system （P〈0.05）. The Fv/Fm, the FvTFm＇, the Fv/FO and the qN also had no significant differences between pure tea plantation and forest-tea compound system （P〉O.05）, but the ETR and the qP of tea tree in pure tea plantation was significantly higher than that in forest-tea compound system （P 〈0.05）. Therefore, the light utilization efficiency of tea tree was not greatly influenced by C. axillaris- C. sinensis compound system.
出处
《湖南农业科学》
2013年第3期101-104,共4页
Hunan Agricultural Sciences
基金
国家农业科技成果转化资金项目(2011GB24-320013)
杭州市青蓝计划项目(20121432K08)
关键词
林茶复合系统
光合特征参数
荧光特征参数
forest-tea compound system
photosynthetic parameters
fluorescent parameters
