摘要
研究分析3种不同密度槟榔园间作对成龄香草兰叶绿素荧光参数的影响。结果表明,在一定范围内,香草兰PSII的潜在活性(Fv/Fo)和表观光合电子传递速率(ETR)随着槟榔密度的降低而显著降低;同时,最大光化学量子产量(Fv/Fm)、实际光化学效率(Yield)和光化学淬灭系数(qP)都呈下降趋势;低密度槟榔园间作条件下,香草兰的天线转化效率(Fv′/Fm′)最低。表明高密度槟榔(株行距为2.0 m×2.5 m)条件较适合间作香草兰,在生产中可以应用。
Effects of three different intercropping densities of areca on chlorophyll fluorescence characteristics of grown vanilla was investigated. The results showed that potential photochemical efficiency （Fv/Fo） and electron transport rat （ETR） were decreased evidently while the areca densities were falling in a certain range; Meanwhile, maximum photochemical efficiency （Fv/Fm）, effective quantum yield of photosystem II （Yield） and photochemical quenching coefficient （qP） all showed a downward trend. In addition, efficiency of excitation captured by open PSII center（Fv＇/Fm＇） was the lowest when areca density was bottommost. These results showed 2.0 m × 2.5 m spacing of areca was suitable for vanilla growth.
出处
《热带农业科学》
2012年第11期4-6,12,共4页
Chinese Journal of Tropical Agriculture
基金
海南省重点科技计划项目(No.ZDXM20100023)
国家科技支撑计划项目(No.2011BAI01B07)
关键词
香草兰
叶绿素荧光
槟榔
间作
不同密度
vanilla
areca
intercropping
different densities
chlorophyll fluorescence
