To evaluate the transition from traditional shading cultivation to mist cultivation, a field experiment was carried out. The results demonstrated that compared with traditional shading, the mist treatment significantly reduced leaf temperature. Likewise, the higher transpiration rate also contributes to reducing leaf temperature and protects ginger from heat stress in summer. Moreover, a higher instantaneous efficiency of water use suggested that water lost via transpiration was beneficial under a mist culture system. The higher instantaneous efficiency of water use in the mist treatment was caused mainly by the higher net photosynthetic rate, which is further reflected by the higher rhizome yield of ginger under the mist culture system. Instead of lowering the temperature by lowering photon flux density, mist treatment does not seriously reduce the photon flux density while reducing the temperature of the blade. Hence, the net photosynthetic rate in the shading treatment is significantly lower than that in the mist treatment, although the maximal quantum yield of photosystem II and the actual photochemical efficiency of photosystem II in ginger in the shading treatment were significantly higher than those in the mist treatment. Lower superoxide anion, hydrogen peroxide, and malondialdehyde contents were also found after mist treatment. Lower ammonium avoids the potential risk of ammonium toxicity and is based on higher nitrate reductase, glutamine synthetase, and glutamate synthase activity but lower glutamate dehydrogenase activity. Therefore, the mist cultivation system improved the physiological characteristics and yields of ginger and can be suggested as an alternative, sustainable, and cleaner cultivation measure.

中文翻译：

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雾培系统对生姜光合作用和氮代谢的影响

为了评估从传统遮荫栽培到雾化栽培的过渡，进行了田间试验。结果表明，与传统遮荫相比，雾化处理显着降低了叶片温度。同样，较高的蒸腾速率也有助于降低叶温并保护姜在夏季免受热应激。此外，更高的瞬时用水效率表明，在雾培养系统下，通过蒸腾损失的水分是有益的。雾处理中较高的瞬时水分利用效率主要是由于较高的净光合速率，这进一步体现在雾培系统下生姜的较高根茎产量。而不是通过降低光子通量密度来降低温度，雾化处理在降低叶片温度的同时，不会严重降低光子通量密度。因此，遮光处理的净光合速率显着低于雾处理的净光合速率，尽管遮光处理姜中光系统II的最大量子产率和光系统II的实际光化学效率显着高于雾处理。治疗。雾处理后还发现了较低的超氧阴离子、过氧化氢和丙二醛含量。较低的铵避免了铵中毒的潜在风险，并且基于较高的硝酸还原酶、谷氨酰胺合成酶和谷氨酸合成酶活性但较低的谷氨酸脱氢酶活性。所以，