WANG Zhen-dong,CHEN Qi-ling,ZHENG Qiang-qing,et al.Effects of Arched Shed and Open Field Cultivation Methods on Photosynthetic Characteristics of Winter Jujube[J].HEILONGJIANG AGRICULTURAL SCIENCES,2021,(01):18-21.[doi:10.11942/j.issn1002-2767.2021.1.0018]
拱棚和露地栽培方式对冬枣光合特性的影响
- Title:
- Effects of Arched Shed and Open Field Cultivation Methods on Photosynthetic Characteristics of Winter Jujube
- Keywords:
- winter jujube; arched shed; open field; photosynthetic characteristics
- 文献标志码:
- A
- 摘要:
- 为改善冬枣的品质和产量，本研究以冬枣为研究材料，比较研究了拱棚和露地栽培条件下冬枣叶片光合特性的差异。结果表明：两种栽培条件下冬枣的净光合速率（Pn）均为“双峰”曲线，均有明显的光合午休现象，拱棚栽培冬枣日变化2次高峰值均低于露地栽培；拱棚与露地条件下冬枣胞间 CO2 浓度（Ci）、气孔限制值（Ls）、蒸腾速率（Tr）、水分利用率（WUE）、气孔导度（Gs）及净光合速率—光响应曲线变化趋势相似；拱棚栽培的冬枣光补偿点较低，露地栽培的冬枣光饱和点较高，表现出不同的光适应能力。
- Abstract:
- In order to improve the quality and yield of winter jujube,in this study,winter jujube (Zizyphus jujuba L.) was used as the research material to compare the photosynthetic characteristics of winter jujube leaves under the conditions of arched shed and open field cultivation.The experimental results showed that the net photosynthetic rate (Pn) of winter jujube under the two cultivation conditions was a double peak curve,and there was a significant phenomenon of photosynthetic noon break.The two peak values of daily variation of winter jujube under the arched shed cultivation were lower than those in the open field cultivation.The variation trend of intercellular CO2 concentration (Ci),air hole limit (Ls),transpiration rate (Tr),water use efficiency (WUE),stomatal conductance (Gs) and net photosynthetic rate light response curve of winter jujube under the arched shed and the open field cultivation conditions was similar.The light compensation point of winter jujube under the arched shed cultivation was lower,and the light saturation point of winter jujube under the open field cultivation was higher,showing different light adaptability.
参考文献/References:
［1］曲泽州,王永蕙.中国果树志?枣卷[M].北京: 中国林业出版社,1991.
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备注/Memo
收稿日期：2020-08-20