摘要
用CIRAS-1型便携式光合系统对盆栽寒富苹果的光合特性进行了研究。结果表明,在冷凉地区,寒富苹果光合速率日变化呈双峰曲线,中午前后光合速率下降,出现“午休”现象,光照强度、气温等因子对光合作用产生影响。寒富苹果的饱和光强为(1 291±58)μmol/(m2.s),光补偿点为(32±8)μmol/(m2.s);CO2饱和点和补偿点分别为(1 439±21)μmol/mol和(92±6)μmol/mol。
The photosynthetic characteristics of Hanfu apple in pot were studied using CIRAS-1 portable photosynthetic system. The results showed that the diurnal variation of net photosynthetic rate presented double-peak curve in cool regions,with the first peak occurred at 10：00 a. m. and the second peak after 15：00 p. m,while decreased at noon. The net photosynthetic rate was greatly affected by light intensity and air temperature. The light compensate and saturated points of Hanfu apple were （32±8）μmol/（m^2·s）and （1 291±58）μmol/（m^2·s）,respectively. The CO2 compensate and saturated points were （92±6） μmol/mol and （1 439±21） μmol/mol, respectively.
出处
《河南农业科学》
CSCD
北大核心
2007年第6期104-106,共3页
Journal of Henan Agricultural Sciences
基金
农业部"948"项目(2006-G28)
关键词
寒富苹果
光合作用
光照强度
Hanfu apple
Photosynthesis
Light intensity
