Study on Diurnal Variation of Photosynthetic Physiological Characteristics of Mulberry in Heqing Yunnan
In order to discuss the photosynthesis characters of mulberry in Yunnan laterite plateau, Nongsang 12 in Heqing Yunnan were used as experimental materials to analyze the diurnal variation of net photosynthetic rate, transpiration rate, other photosynthetic characteristic parameters and corresponding environmental factors. The results showed that the curves of daily variation of net photosynthetic rate displayed a bimodal curve and an obviously midday depression. The lower net photosynthetic rate at noon was mainly affected by non-stomatal limitation factors. The curves of daily variation of transpiration rate and stomatal conductance displayed bimodal curves, and showed significantly positive correlation. Diurnal variation of intercellular CO2 was reverse of that of net photosynthesis rate basically. The environmental factors affected the photosynthetic characteristic parameters of mulberry, and photosynthetic effective radiation played a decisive role on net photosynthetic rate.
NETL
NSTL
万方数据
维普
