中文摘要：

为检验增施CO_2对马铃薯组培苗植株光合特性及微型薯产量的影响,选用马铃薯品种夏坡蒂组培苗为试验材料,于2015年在温室条件下进行了两批次试验。结果表明,增加CO_2浓度可显著增加植株的叶面积、叶片净光合速率和胞间CO_2浓度,且CO_2750μmol/mol处理〉550μmol/mol处理〉CK（空气）,但增加CO_2浓度降低了马铃薯植株叶片气孔导度和蒸腾速率。结果还表明,增施CO_2增加了马铃薯单株结薯数、单个薯重和单株产量,其增幅随CO_2量的增加而增加。上述结果充分证明在温室条件下增施CO_2对加速马铃薯微型薯的繁育有积极作用。

英文摘要：

The effects of CO_2 supplements on photosynthetic characteristics and the micro tuber yield of the transplanted tissue-cultural potato plants were studied under the condition of the greenhouse using cultivar Shepody in 2015. The results showed that the leaf area, net photosynthetic rate and intercellular CO_2 concentration with CO_2 supplements were greater than those of treated with air（CK）, and 750μmol/mol550μmol/molCK（air）. But the stomatal conductance and transpiration rate with CO_2 supplements were lower than those of CK. In addition, the tuber number and tuber weight per plant treated with increasing CO_2 were higher than those of CK. The results fully proved that CO_2 supplements are of positive significance on micro tuber propagation via tissue-cultural potato plants under the condition of greenhouse.