长日照、CO2加富对休眠状态下草莓形态特征及光合特性的影响  

Effects of long-day photoperiod and CO enrichment on photosynthesis in dormancy strawberry

作　　者：张卓 付崇毅 潘璐 宋阳[1] 杨志刚 张毅 崔世茂[1] ZHANG Zhuo;FU Chongyi;PAN Lu;SONG Yang;YANG Zhigang;ZHANG Yi;CUI Shimao(College of Horticulture and Plant Conservation,Inner Mongolia Agricultural University,Hohhot 010019,China;Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences,Hohhot 010031,China;Collaborative Innovation Center for Improving Quality and Increase Profits of Protected Vegetables in Shanxi,Taigu 030801,China)

机构地区：[1]内蒙古农业大学园艺与植物保护学院,内蒙古呼和浩特010019 [2]内蒙古自治区农牧业科学院,内蒙古呼和浩特010031 [3]山西省设施蔬菜提质增效协同创新中心,山西太谷030801

出　　处：《北方农业学报》2020年第3期129-134,共6页Journal of Northern Agriculture

基　　金：国家自然科学基金项目(31860573);内蒙古自治区自然科学基金项目(2019BS03013)。

摘　　要：【目的】为北方秋冬季节设施草莓的高产优质栽培提供理论依据和技术支持。【方法】以"京桃香"草莓为试验材料,设置4个处理,即对照(CK)、CO2加富(CO2)、长日照(LD)、长日照+CO2加富(LD+CO2),研究各处理对休眠状态下草莓光合作用的影响。【结果】LD+CO2处理显著促进休眠状态下草莓叶片生长,表现为叶柄变长、叶面积增大;LD、CO2和LD+CO2处理能够提高休眠状态下草莓叶片SPAD值、净光合速率,LD、CO2处理可通过调节叶绿素含量和气孔因素影响草莓叶片的光合作用;LD+CO2处理能够显著提高休眠状态下草莓叶片的可溶性蛋白质、淀粉、可溶性糖含量;LD+CO2处理与LD、CO2处理相比,对休眠状态下草莓叶片生长和光合作用的促进作用更好。【结论】LD+CO2、LD、CO2处理可提高休眠状态下草莓叶片的光合速率,加快碳同化,加速光合产物的形成与积累,促进休眠状态下草莓叶片的生长。【Objective】It provided theoretical basis and technical support for high yield and high quality cultivation of strawberry in autumn and winter in north China.【Methods】The effect of 4 treatments on photosynthesis of dormancy strawberry was studied with"Jing Tao Xiang strawberry"as experimental material,and control(CK),CO2 enrichment(CO2),long-day photoperiod(LD),and long-day photoperiod+CO2 enrichment(LD+CO2)were set up.【Results】Long-day photoperiod+CO2 treatment significantly promoted the growth of dormancy strawberry leaves.The petiole became longer and the area of single leaf increased.The SPAD value and net photosynthetic rate of dormancy strawberry leaves were increased by long-day photoperiod,CO2 enrichment and long-day photoperiod+CO2 treatment.The photosynthesis of strawberry leaves could be influenced by long-day photoperiod and CO2 enrichment by adjusting chlorophyll content and stomatal factors.The content of soluble protein,starch and soluble sugar in dormancy strawberry leaves could be significantly increased by longday photoperiod+CO2 enrichment.Compared with long-day photoperiod and CO2 enrichment alone,the coupled treatment of the two had a better effect on promoting the growth and photosynthesis of dormancy strawberry leaves.【Conclusion】LD and CO2 treatment could improve the photosynthetic rate,accelerate carbon assimilation,accelerate the formation and accumulation of photosynthetic products,and promote the growth of dormant strawberry leaves.

关 键 词：草莓 休眠 长日照 CO2加富 光合作用 

分 类 号：S626.5[农业科学—园艺学] S668.4