The diurnal variation of Pn in hebei-walnut was influenced by light intensity, leaf temperature and intercellular CO2 concentration.
影响河北核桃净光合速率日变化的主要因子是光合有效辐射、叶片温度及胞间CO_2浓度。
Plants during the growing season are often subject to various environmental factors in stress for example light intensity, temperature, moisture, atmospheric CO2 concentration and so on.
植物在生长季节经常受到光照强度、温度、水分、大气CO2浓度等各种环境因子的胁迫。
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