戊唑醇对草莓育苗质量影响的研究  

Study on the effects of tebuconazole on the quality of strawberry seedling

作　　者：郭春艳 杨洁 李扬 王丽娟 Guo Chunyan;Yang Jie;Li Yang;Wang Lijuan(College of Horticulture and Landscape,Tianjin Agricultural University,Tianjin 300392,China;Institute of Information,Tianjin Academy of Agricultural Sciences,Tianjin 300192,China)

机构地区：[1]天津农学院园艺园林学院,天津300392 [2]天津市农业科学院信息研究所,天津300192

出　　处：《天津农学院学报》2024年第6期15-20,共6页Journal of Tianjin Agricultural University

基　　金：天津市科技局科技帮扶项目(22ZXBTSN00030);天津市优秀企业特派员项目(23ZYCGSN00540)。

摘　　要：以‘红颜’草莓为试材,喷施5种不同浓度的戊唑醇(C1:2.52×10~(-6)mol/L,C2:5.04×10~(-6)mol/L;C3:7.56×10~(-6)mol/L;C4:1.01×10~(-5)mol/L,C5:1.26×10~(-5)mol/L),以清水为对照,并在喷施后5、10、15、20、25、30 d测定不同处理对草莓株高、茎粗、叶面积、叶绿素含量、净光合速率以及生物量等指标的影响,以期筛选出戊唑醇在控制草莓苗期生长方面最适宜的浓度。结果表明,不同浓度戊唑醇处理后均显著抑制了草莓株高和叶面积的生长,C4抑制效果最佳,总净增量与CK相比分别降低了78.32%和83.55%;在一定浓度范围内戊唑醇可使茎粗增加,但差异不显著,C1对茎粗的促进效果最好,总净增量与CK相比增加了36.95%;在生理指标方面,30 d时C2与CK相比叶绿素含量提高最多,但与CK差异不显著;C4显著提高了净光合速率。施用戊唑醇后降低了植株干鲜质量,但提高了根冠比,C2根冠比最大,但差异不显著;壮苗指数以C2最高,与CK相比提高了10.69%。经隶属函数综合分析得出C2(戊唑醇5.04×10~(-6)mol/L)对草莓控制生长效果最佳。In order to screen out the most suitable concentration of tebuconazole in controlling strawberry seedling growth,‘Hongyan’strawberries were sprayed with five different concentrations of tebuconazole(C1:2.52×10-6 mol/L,C2:5.04×10-6 mol/L,C3:7.56×10-6 mol/L;C4:1.01×10-5 mol/L,C5:1.26×10-5 mol/L),and with water as the control,the effects of different treatments on plant height,stem diameter,leaf area,chlorophyll content,net photosynthetic rate and biomass of strawberry were measured at 5,10,15,20,25 and 30 days after spraying.The results showed that the growth of plant height and leaf area of strawberry was significantly inhibited after treatment with different concentrations of tebuconazole,and C4 had the best inhibitory effect.The total net increment was 78.32%and 83.55%lower than that of CK,respectively.Within a certain range of concentration,the stem diameter could be increased,but the difference was not significant.C1 had the best promotion effect on stem diameter,and the total net increment increased by 36.95%compared with CK.In terms of physiological indexes,the chlorophyll content of C2 increased the most compared with CK at 30 d,but there was no significant difference between C2 and CK.C4 significantly increased the net photosynthetic rate.The application of tebuconazole reduced the dry and fresh weight of the plant,but increased the root-shoot ratio.The root-shoot ratio of C2 was the largest,but the difference is not significant.The seedling index of C2 was the highest,which was 10.69%higher than that of CK.The comprehensive analysis of membership function showed that C2(tebuconazole 5.04×10-6 mol/L)had the best control effect on strawberry growth.

关 键 词：草莓 戊唑醇 育苗 质量 

分 类 号：S663.9[农业科学—果树学]