DA-6对不同品种北美冬青生长和生理特性的影响  

Effects of DA-6 on growth and physiology of different Ilex verticillata varieties

作　　者：邱玉宾[1] 张海良 王佰晨 王成金 杨志莹[1] 赵庆柱[1] Qiu Yubin;Zhang Hailiang;Wang Baichen;Wang Chengjin;Yang Zhiying;Zhao Qingzhu(Weifang Academy of Agricultural Sciences,Weifang 261071, China;Gaomi Agricultural Technology Extension Center,Gaomi 261500, China;Weifang Academy of Technicians,Weifang 261053, China)

机构地区：[1]潍坊市农业科学院,山东潍坊261071 [2]高密市农业技术推广中心,山东高密261500 [3]潍坊市技师学院,山东潍坊261053

出　　处：《江苏林业科技》2021年第2期1-5,共5页Journal of Jiangsu Forestry Science & Technology

基　　金：潍坊市科技发展计划项目“北美冬青引种筛选及栽培繁育技术研究”(2018ZJ1021)。

摘　　要：以北美冬青‘冬红’‘冬黄’‘格瑞’和‘奥斯特’4个品种营养钵苗为试验材料,通过施用不同质量浓度(20,30,50 mg/L)的DA-6,研究其对北美冬青株高、冠幅、单株生物量、光合及可溶性糖等的影响。结果表明:30 mg/L DA-6处理下,‘奥斯特单株’‘格瑞’的生长最好;20 mg/L DA-6处理下,‘冬黄’‘冬红’生长最好。各品种株高、冠幅、单枝长及生物量最大,其中‘奥斯特’单株鲜质量和干质量分别达到68.84,31.90 g。不同质量浓度的DA-6处理,各品种净光合速率、气孔导度、蒸腾速率与对照相比,均呈现出不同程度的增加,其中20 mg/L处理,‘冬红’净光合速率最大,达到8.44μmol CO_(2)/(m^(2).s)。一定质量浓度的DA-6可促进北美冬青叶片可溶性糖积累,其中30 mg/L处理‘冬红’‘格瑞’,可溶性糖达到最大值,分别比对照增加了52.34%,36.09%。In order to further improve the Ilex verticillata cultivation techniques,after taking such varieties as‘Winter Red’,‘Winter Gold’,‘Gray’and‘Oosterwijk’for test materials,the effects of DA-6 on the plant height,crown width,biomass,photosynthesis and soluble sugar were studied.The results showed that‘Oosterwijk’and‘Gray’treated with 30 mg/L DA-6 could get best growth while‘Winter Red’and‘Winter Gold’treated with 20 mg/L DA-6 could do.The plant height,crown width,branch length,biomass of them could reach maximum,especially with 31.90 g dry weight and 68.84 g wet weight in‘Oosterwijk’.The Pn,Gs and Tr were increased more than CK under different DA-6 concentration treatment.Especially,the Pn of‘Winter Red’treated with 20 mg/L DA-6,got maximum,reaching 8.44μmol CO_(2)/(m^(2.)s).DA-6 could promote the soluble sugar accumulation of I.verticillata varieties tested,and soluble sugar contents of‘Winter Red’and‘Gray’treated with 30 mg/L DA-6 were increased by 52.34%and 36.09%respectively,more than that of CK.

关 键 词：DA-6 北美冬青 生长 净光合速率 气孔导度 胞间CO2浓度 蒸腾速率 

分 类 号：Q945.11[生物学—植物学] Q945.3