增施CO_2对马铃薯植株光合特性及产量的影响  

Effects of CO_2 Supplements on Photosynthesis of Potato Plants and Micro Tuber Yield

作　　者：赵竞宇 刘广晶 崔世茂[1] 秦永林[1] 贾立国[1] 樊明寿[1] 

机构地区：[1]内蒙古农业大学农学院,内蒙古呼和浩特010019 [2]内蒙古中加农业生物科技有限公司,内蒙古四子王旗011808

出　　处：《作物杂志》2016年第3期79-83,共5页Crops

基　　金：国家自然科学基金(31360502);内蒙古重大专项"马铃薯种薯繁育与商品薯生产中资源高效利用技术创新";内蒙古基金(2015BS0304)

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。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.

关 键 词：马铃薯 增施CO_2 光合特性 微型薯产量 

分 类 号：S532[农业科学—作物学]