遮光对2个北美冬青品种生长和果实品质的影响  

Effect of Shading on the Growth and Fruit Quality of Two Ilex verticillata

作　　者：杨志峰 杨志莹[2] 李晓萌 张小羽 张海良 肖龙 YANG Zhi-feng(Yantai Integrated Agricultural Law Enforcement Detachment,Yantai,Shandong264003)

机构地区：[1]烟台农业综合执法支队,山东烟台264003 [2]潍坊市农业科学院,山东潍坊261071 [3]潍坊市园林设计院,山东潍坊261041

出　　处：《园艺与种苗》2024年第8期4-7,共4页Horticulture & Seed

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

摘　　要：[目的]比较2个北美冬青品种的耐阴性,从而更好地指导生产。[方法]以‘奥斯特’和‘格瑞’为试验材料,设置遮光30%、遮光50%、遮光70%、全光照4个处理,研究不同遮光条件对2个北美冬青品种植株生长、结果情况和果实品质的影响。[结果]随着遮光度的增加,北美冬青的株高、冠幅、当年生枝长、果实纵横径等均呈现先上升后降低的趋势。茎粗、花色素苷和含糖量均呈下降趋势。果实变色时间和落果率呈上升趋势。50%的遮光处理最适宜北美冬青的生长。[结论]通过对上述指标进行耐阴系数分析和主成分分析得出:‘奥斯特’的耐阴性比‘格瑞’强,可以用3个主成分对北美冬青的耐阴性进行综合评价。[Objective]By comparing the shade tolerance of two Ilex verticillata varieties,the study aims to better guide the production.[Method]‘Oosterwijk’and‘Gray’were taken as the test materials and treated with four light intensities:shading treatment of 30%,50%,70%,and 100%full light.The plant growth,fruit setting and fruit quality were measured.[Result]With the increase of shading,the plant height,canopy,length of branches of the year,and fruit vertical and transverse diameters increased first and then decreased.The stem diameter,anthocyanin content and soluble sugar content declined while the coloring time of fruits and the fruit dropping rate had a rising tendency.It was concluded that the shading treatment of 50%was the most suitable one for the growth of I.verticillata.[Conclusion]The shade tolerance coefficient analysis and principal component analysis showed that,‘Oosterwijk’had strong shade tolerance than‘Gray’,and 3 principal components could be used to evaluate their shade tolerance.

关 键 词：北美冬青 遮光 耐阴性 生长 果实品质 

分 类 号：Q949.754.6[生物学—植物学]