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本试验对生姜不同品种、不同部位叶片的光合能力以及温度、光照等环境因素对生姜光合作用的影响进行了研究。结果表明,莱芜‘大姜’的光合速率高于莱芜‘片姜’。中部壮龄叶的光合作用最强,其次为基部叶,顶部嫩叶光合作用软弱。在22-24℃条件下,生姜单叶光合作用的适宜照度为20000-350001x。在光强为30000 1x时, 20—28℃,生姜光合作用较强,若温度过高,对光合作用不利。在生姜全生长过程中,其光合速率变化呈一单峰曲线。在旺盛生长季节,其光合作用的日变化,呈一双峰曲线,第一次高峰在上午9时前后,中午为一低谷,第二次高峰在16时左右。
The effects of different environmental factors such as temperature and light on the photosynthesis of ginger in different varieties and parts of leaves were studied in this experiment. The results showed that the photosynthetic rate of ’Ginger’ in Laiwu was higher than that of Laiwu ’Ginger’. Leaf photosynthesis of the strongest in middle age leaves, followed by the basal leaves, weak photosynthesis of the top leaves. Under the condition of 22-24 ℃, the suitable illumination of the photosynthesis of ginger single leaf is 20000-350001x. In the light intensity of 30000 1x, 20-28 ℃, ginger strong photosynthesis, if the temperature is too high, the photosynthesis adverse. During the growth of ginger, the photosynthetic rate showed a unimodal curve. In the vigorous growing season, the diurnal changes of photosynthesis showed a double peak curve. The first peak was around 9:00 a.m., and the second peak was around 16:00.