摘要
本文探讨了保护地黄瓜在增加ＣＯ_２浓度条件下的生理生态反应。结果表明：增加ＣＯ_２浓度可促进黄瓜的光合作用，提高细胞ＣＯ_２浓度，降低气孔导度。在增施ＣＯ_２条件下，冬季保护地黄瓜叶片的净光合速率日变化曲线为单峰型，而正常条件下保护地内ＣＯ_２常出现亏缺，从而抑制光合碳同化，并引起所谓的“午休”现象。冬季保护地黄瓜的光合“午休”现象主要是由于ＣＯ_２亏缺所导致。
The effects of CO_2 application on the physiological and biological reactions of greenhouse cucumber was studied in greenhouse. The results showed that there was one peak in the curve of diurnal variation of photosynthetic rate of cucumber leaf by CO_2 application, and there was no apparent midday depression; The midday depression of photosynthetic rate of normal condition was due to CO_2 deficiency; CO_2 application could enhance the photosynthetic rate, increase CO_2 concentration between cells and decrease the stomatal conduction.
出处
《沈阳农业大学学报》
CAS
CSCD
2000年第1期86-88,共3页
Journal of Shenyang Agricultural University
