摘要
应用非直角与直角双曲线模型、二项式回归方法及叶子飘光响应曲线模型拟合了雷公藤幼苗的测量数据.结果表明,雷公藤幼苗光合速率与光强之间存在非线性关系.叶子飘光响应曲线模型的拟合效果最佳,相关系数最大,模拟值与实测值最符合;利用该模型重新拟合出雷公藤幼苗的饱和光强为468.98μmol.m-2.s-1,最大光合速率为21.41μmol.m-2.s-1,这些数据与试验测量值较符合;其内禀量子效率为0.076,表观量子效率为0.069,在光补偿点处的量子效率为0.072.
Based on the measurements of leaf photosynthesis,the light response curves of Tripterygium wilfordii were fitted with rectangle and non-rectangle hyperbolae,binomial regressions,Ye Zi-piao light-response model.The results showed that there was a nonlinear relationship between photosynthesis rate and light intensity.Ye Zi-piao light-response model was found to be best for calculating photosynthetic parameters and simulating photosynthetic light-response curve.By using the measured data,the fitted optimal light intensity and maximum photosynthesis rate were calculated to be 468.98 μmol·m-2·s-1 and 21.41 μmol·m-2·s-1,respectively,well fitting with the measured values.The intrinsic quantum yield,apparent quantum yield and quantum yield at light compensation point were 0.076,0.069 and 0.072,respectively.
出处
《福建农林大学学报（自然科学版）》
CSCD
北大核心
2012年第1期29-33,共5页
Journal of Fujian Agriculture and Forestry University:Natural Science Edition
基金
国家自然科学基金资助项目(31070606)
教育部博士点学科专项基金资助项目(20093515110006)
福建省科技厅重大专项资助项目(2006NZ0001A)
关键词
光合响应曲线模型
雷公藤
光合速率
光强
light-response curve model of photosynthesis
Tripterygium wilfordii
maximum photosynthesis rate
light intensity
