不同淀粉型马铃薯光合特性及产量比较  

Comparison of Photosynthetic Characteristics and Yield in Potato with Different Starch Mass Fraction

作　　者：贾羊毛加 陈英平 叶广继[1] 张凤军[1] 孙海林 王芳[1] 苏旺 王舰[1] JIAYANG Maojia;CHEN Yingping;YE Guangji;ZHANG Fengjun;SUN Hailin;WANG Fang;SU Wang;WANG Jian(State Key Laboratory of Plateau Ecology and Agriculture/Key Laboratory of Qinghai-Tibetan Plateau Biotechnology of Ministry of Education/Key Laboratory of Potato Breeding of Qinghai,Qinghai University/Qinghai Academy of Agriculture and Forestry Sciences,Xining 810016,China)

机构地区：[1]青海大学,青海大学农林科学院/青海省农林科学院,青海大学省部共建三江源生态与高原农牧业国家重点实验室,青海大学青藏高原生物技术教育部重点实验室,青海省马铃薯育种重点实验室,西宁810016

出　　处：《西北农业学报》2018年第10期1440-1445,共6页Acta Agriculturae Boreali-occidentalis Sinica

基　　金：青海省自然科学基金(2017-ZJ-960Q);现代农业产业技术体系项目(CARS-10);青海省马铃薯研究开发中心能力建设项目(2015-GX-Q17A);农业部薯类作物生物学与遗传育种重点实验室开放课题。

摘　　要：选用高、中、低淀粉型马铃薯品种各3个,研究不同淀粉型马铃薯品种(系)的光合特性及产量差异,为马铃薯高淀粉品种选育、高产调优栽培及淀粉品质改良提供理论依据。研究结果表明,除‘大同里外黄’和‘青薯2号’,不同质量分数淀粉马铃薯的叶绿素质量分数、光合速率、气孔导度、胞间CO2摩尔分数及产量均差异显著(P<0.05),以‘青薯9号’为最高;随着块茎淀粉质量分数的提高,马铃薯的叶绿素质量分数、光合速率、气孔导度、胞间CO2摩尔分数及产量均有升高的趋势,且淀粉型间差异显著(P<0.05);马铃薯的光合作用受气孔因素影响。因此,高淀粉型马铃薯品种(系)叶片光合能力强,可以形成更高的产量。Three potato varieties with high-,middle-and low-mass fraction of starch were used to evaluated the difference of photosynthetic characteristics and yield,and to explore theoretical references for high-starch variety breeding,high yield and optimal cultivation,and improvement of starch quality in potato.The results showed that with the exception of‘Datongliwaihuang’and‘Qingshu No.2’,the chlorophyll mass fraction,photosynthetic rate,stomatal conductance,intercellular CO 2 concentration and yield all indicated significant difference among potato varieties at 0.05 level,and‘Qingshu No.9’was the highest among them.With the increase of starch mass fraction in tuber,chlorophyll mass fraction,photosynthetic rate,stomatal conductance,intercellular CO 2 mole fraction and yield increased as well,and the difference between high-,middle-and low-starch mass fraction groups were significant at 0.05 level.Meanwhile,the study revealed the photosynthesis of the potato was controlled by stomatal factor.Therefore,high-starch potato varieties(lines)are characterized as strong photosynthetic capacity,and yielded more.

关 键 词：光合 淀粉型 品种(系) 马铃薯 

分 类 号：S311[农业科学—作物栽培与耕作技术]