不同浓度Hoagland营养液对蓝莓幼树生长发育的影响  

The effect of different concentrations of Hoagland nutrient solution on the growth and development of blueberry young trees

作　　者：杨海燕[1] 王华圣 吴文龙[1] 闾连飞[1] 樊苏帆 李维林 YANG Hai-yan;WANG Hua-sheng;WU Wen-long;LYU Lian-fei;FAN Su-fan;LI Wei-lin(Institute of Botany,Jiangsu Province and Chinese Academy of Sciences(Nanjing Botanical Garden Mem.Sun Yat-Sen)/Jiangsu Key Laboratory for the Research and Utilization of Plant Resources,Nanjing 210014,China;College of Forestry/Co-Innovation Center for the Sustainable Forestry in Southern China,Nanjing Forestry University,Nanjing 210037,China)

机构地区：[1]江苏省中国科学院植物研究所(南京中山植物园)/江苏省植物资源研究与利用重点实验室,南京210014 [2]南京林业大学林学院/南方现代林业协同创新中心,南京210037

出　　处：《湖北农业科学》2023年第6期175-180,207,共7页Hubei Agricultural Sciences

基　　金：江苏省科技计划项目(BE2019399)。

摘　　要：以蓝莓(Vaccinium spp.)品种‘明星’(‘Star’)一年生幼树为试验试材,用清水(CK处理)、50%Hoagland营养液(A处理)、100%Hoagland营养液(B处理)、150%Hoagland营养液(C处理)处理植株60 d,测定不同浓度Hoagland营养液对植株生长、叶绿素含量以及抗氧化系统的影响。结果表明,A处理、B处理、C处理下蓝莓幼树的株高和茎粗均高于CK处理,第15天C处理的株高、茎粗均最大,第45天和第60天A处理的株高、茎粗均最大,B处理的冠幅最大;第60天A处理、B处理、C处理下叶绿素a含量、叶绿素b含量、总叶绿素含量均高于CK处理;超氧阴离子产生速率随时间增加总体呈先上升后下降趋势,H_(2)O_(2)含量随时间增加整体呈上升趋势,第60天A处理的超氧阴离子产生速率、H_(2)O_(2)含量和MDA含量均最低;SOD活性随时间增加整体呈先上升后下降的趋势,第30天达到最高值;可溶性蛋白质和AsA含量在试验期内总体呈上升趋势,GSH含量呈先下降后上升趋势。One year old saplings of the blueberry variety‘Star’(Vaccinium spp.)were used as experimental materials.The plants were treated with water(control treatment),50%Hoagland nutrient solution(A treatment),100%Hoagland nutrient solution(B treatment),and 150%Hoagland nutrient solution(C treatment)for 60 days.The effects of different concentrations of Hoagland nutri⁃ent solution on plant growth,chlorophyll content,and antioxidant system were measured.The results showed that under treatment A,B,and C,the plant height and stem diameter of blueberry saplings were higher than those of the control.On the 15th day,treatment C had the highest plant height and stem diameter,while on the 45th and 60th days,treatment A had the highest plant height and stem di⁃ameter,and treatment B had the highest crown width;on the 60th day,the chlorophyll a content,chlorophyll b content,and total chlo⁃rophyll content of treatment A,B,and C were higher than those of the control treatment;the production rate of superoxide anion showed an overall trend of first increasing and then decreasing with time,and the H_(2)O_(2) content showed an overall upward trend with time.On the 60th day,the superoxide anion production rate,H_(2)O_(2) content,and MDA content of treatment A were all the lowest;the SOD enzyme activity showed an overall trend of first increasing and then decreasing with time,reaching its highest value on the 30th day;the content of soluble protein and AsA showed an overall upward trend during the experimental period,while the content of GSH showed a first decrease and then an upward trend.

关 键 词：蓝莓(Vaccinium spp.) Hoagland营养液 营养生长 抗氧化系统 

分 类 号：S663.9[农业科学—果树学]