叶面喷施氧化型谷胱甘肽对设施草莓光合作用、产量和品质的影响  

Effect of foliar application of oxidized glutathione (GSSG) on photosynthesis rate,yield and quality of strawberry under protected cultivation

作　　者：吴长春 雷伟伟 范珊珊 陈娟[2] 邹春琴[1] 陈新平 曲明山[2] 赵永志[2] WU Chang-chun;LEI Wei-wei;FAN Shan-shan;CHEN Juan;ZOU Chun-qin;CHEN Xin-ping;QU Ming-shan;ZHAO Yong-zhi(College of Resources and Environmental Science,Center for Resources,Environment and Food Security,Key Laboratory of Plant-Soil Interactions,Ministry of Education,China Agricultural University,Beijing 100193;Beijing Soil and Fertilizer Extension Service Station,Beijing 100029;College of Resources and Environmental Science,Southweat University,Chongqing 400716)

机构地区：[1]中国农业大学资源与环境学院/教育部土壤-植物相互作用重点实验室/中国农业大学资源环境与粮食安全中心,北京100193 [2]北京市土壤肥料工作站,北京100029 [3]西南大学资源与环境学院,重庆400716

出　　处：《中国土壤与肥料》2019年第5期163-169,共7页Soil and Fertilizer Sciences in China

基　　金：国家十三五重点研发专项(2017YFD0800403)

摘　　要：为了缓解京郊冬春季雾霾寡照对设施草莓产量和品质的影响,以‘红颜’草莓为试验材料,在基质栽培条件下,研究了在草莓生长的不同时期喷施不同浓度氧化型谷胱甘肽(GSSG)对设施草莓光合速率、产量和品质的影响。结果表明,喷施谷胱甘肽有氧化型(GSSG)显著提升了草莓的产量。GSSG浓度与前两茬果和总产量符合线性-平台的模型,当GSSG浓度为180~300 mg/L时,草莓产量达到最大,继续增加GSSG浓度产量不再增加。草莓产量的提升主要是由于喷施GSSG后草莓结果数显著增加,GSSG浓度为150~300 mg/L时,头茬果和二茬果的果数均显著增加;GSSG浓度大于150 mg/L时,草莓叶面积、叶片光合速率随着GSSG浓度的增加而增加,草莓的产量与叶面积和光合速率呈显著的正相关关系。喷施GSSG浓度为300 mg/L时对草莓的糖度有一定提升。综合考虑,在设施草莓生产中,在草莓生长的不同时期喷施180~300 mg/L GSSG,有利于减缓冬春季雾霾寡照天气对设施草莓生长的不利影响,从而提高草莓的产量和品质。To alleviate the influence of haze and low-light on the yield and quality of strawberry under protected cultivation during winter and spring seasons,during 2015~2016 and 2016~2017,the experiments were conducted to study the effects of foliar application of different rate of oxidized glutathione(GSSG)at seedling stage,early flowering stage,the first fruit swelling stage,the second swelling stage and the third fruit swelling stage on the photosynthetic rate,yield and quality of strawberry(cultivar as‘Beinihoope’).The results showed that spraying GSSG significantly increased strawberry yield.The responses of yield from the first harvest,second harvest and total harvest to applied GSSG concentration were consistent with a linear-plateau model.When the GSSG was applied as 180~300 mg/L GSSG,the maximum yield was achieved.But further increasing GSSG concentration,the yield did not increase accordingly.The increase in strawberry yield was mainly due to the significant increase in the number of strawberries.When the applied GSSG concentration was 150~300 mg/L,the fruit number increased significantly at the first and second harvests.When the applied GSSG concentration was more than 150 mg/L,the leaf area significantly increased,and the photosynthetic rate increased with GSSG concentration increasing.The yield was positively related with leaf area and photosynthetic rate.Foliar application of 300 mg/L GSSG concentration increased sugar concentration in fruit of strawberry.In conclusion,the foliar applications of GSSG of at different growth stage was beneficial to ameliorate the negative influence of haze and low-light on the growth of strawberry,and then improved the yield and quality of strawberry under protected cultivation condition.

关 键 词：氧化型谷胱甘肽 设施栽培 光合速率 产量 品质 草莓 

分 类 号：S66[农业科学—果树学]