白海棠不同类型枝条光合能力比较研究

doi:10.11924/j.issn.1000-6850.casb15030186

中国农学通报 ›› 2015, Vol. 31 ›› Issue (25): 90-95.doi: 10.11924/j.issn.1000-6850.casb15030186

白海棠不同类型枝条光合能力比较研究

高照全,程建军,李静,丁国亮

北京农业职业学院,北京农业职业学院,北京市大兴区林业保护站北京,北京农业职业学院

收稿日期:2015-03-23 修回日期:2015-08-01 接受日期:2015-06-12 出版日期:2015-09-23 发布日期:2015-09-23
通讯作者: 高照全
基金资助:
北京市农委项目“山区白海棠景观式果园的建立与示范”(20140137)；北京市农委项目“山区白海棠特色产业基地的建立与示范”(20140204-6)；北京农业职业学院项目“白海棠高效栽培技术集成与示范”(XY-YF-13-02)。

Study on Photosynthetic Ability of Different Shoot Types of White Crabapple

Received:2015-03-23 Revised:2015-08-01 Accepted:2015-06-12 Online:2015-09-23 Published:2015-09-23

摘要/Abstract

摘要： 为比较不同类型白海棠枝条光合能力的差异，以白海棠为试材，通过试验测定和数学模拟的方法研究长枝、中枝和短枝的光合能力差异。长枝、中枝和短枝的最大光合速率分别为16.3、14.5、9.68 μmol/(m² · s)，光量子效率分别为0.053、0.047、0.042 μmol/μmol，这说明长枝的光合能力最强，其次为中枝和短枝。计算表明，在高辐射条件下[PAR=1500 μmol/(m² · s)]，单位地面上长枝叶片的。光合总量为18.82 μmol/(m² · s)，占整个树冠的73.15%，中枝和短枝只有5.19、1.73 μmol/(m² · s)。研究表明，长枝叶片的光合总量最大，这与其较强的光合能力和较大的叶面积有关。

关键词: 峨嵋双蝴蝶提取物, 峨嵋双蝴蝶提取物, 金黄色葡萄球菌, 抑菌作用

Abstract: The study aims to explore and compare the photosynthetic ability of different shoot types of white crabapple. The ability of photosynthesis of shoot type of white crabapple was studied by measurement and mathematical simulation. The maximal photosynthetic rate of long shoot, middle shoot and short shoot was 16.3, 14.5 and 9.68 μmol/(m² ·s), respectively; and the quanta efficiency of photosynthesis of the three shoot types was 0.053, 0.047 and 0.042 μmol/μmol, respectively. The results showed that the photosynthesis ability of long shoot was higher than that of middle and short shoot. The total photosynthesis per unit grand area was 18.82, 5.19 and 1.73 μmol/(m²·s) of long shoot, middle shoot and short shoot, respectively, with PAR equal to 1500 μmol/(m²·s) on the top canopy. The results indicated that long shoot was conducive to improve fruit tree photosynthesis (about 73.15%) with high photosynthetic rate and leaf area.

高照全,程建军,李静,丁国亮. 白海棠不同类型枝条光合能力比较研究[J]. 中国农学通报, 2015, 31(25): 90-95.

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白海棠不同类型枝条光合能力比较研究

Study on Photosynthetic Ability of Different Shoot Types of White Crabapple

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