干旱时期放养紫胶虫对马鹿花光合生理生态特征影响研究  

A Study on Effects of Inoculating Lac Insects on Photosynthetic Characteristics of Pueraria wallichii during Drought

作　　者：黄小波[1,2] 李福强 杨贵成 谷勇[1] 王鲜艳[1,2] 吴昊[1] 

机构地区：[1]中国林业科学研究院资源昆虫研究所,云南昆明650224 [2]西南林业大学环境科学与工程学院,云南昆明650224 [3]怒江州林业局,云南怒江673100

出　　处：《江西农业大学学报》2013年第2期381-386,共6页Acta Agriculturae Universitatis Jiangxiensis

基　　金：国家林业科学技术推广项目([2011]05号)

摘　　要：采用美国Li-COR公司生产的Li-6400便携式光合测定仪,选择旱季无云条件下,在试验地测定并比较放养紫胶虫的马鹿花和未放养紫胶虫的马鹿花的光合生理生态特征的日变化。结果表明:放养紫胶后马鹿花具有较低的净光合速率、蒸腾速率、气孔导度、气孔限制值、较低的水分利用效率和较高的胞间CO2浓度。相关性分析表明,影响马鹿花Pn下降的主要是非气孔因素,且同一环境因子对于放养紫胶虫和未放养紫胶虫马鹿花Pn的影响不同。Under natural condition with inoculated lac insects and without , diurnal changes of photosynthetic characteristics of Pueraria wallichii inoculated lac insect were measured with the li-6400 portable photosynthesis system. The results showed that Pueraria wallichii with inoculated lac insects had smaller net photosynthetic rate （ Pn ）, transpiration rate （ Tr）, stomatal conductance （ Gs ）, value of stomatal limitaition （Ls）, water use efficiency（WUE） and higher intercellular CO2 concentration （Ci ）. Correlation analysis showed that the cause of the depression of Pn of Pueraria wallichii was non-stomatal factors, and the same environmental factor had different impact on net photosynthetic rate of Pueraria wallichii with inoculated lac insects and without inoculated lac insects.

关 键 词：马鹿花 净光合速率 日变化 

分 类 号：S685.99[农业科学—观赏园艺]