旋覆花提取物对6种植物病原真菌抑制作用初步研究.pdf

华北农学报# 2007 , 22 ( 增刊) : 22 5- 229 6 1, 2 2, 3 2, 3 2, 3 2, 3 2, 3 1 王红刚 , 王文桥 , 韩秀英 , 张小风 , 马志强 , 李红霞 , 赤国彤 ( 11 , 071001; 21 , 071000; 31 , 071000) : 4 : 6 , EC 5148 mg/ mL, 121 5 mg/ mL 88189% 4 , 50 3 : ; ; ; + : S48212 92 :A : 1000- 7091( 2007) - 0225- 05 Primary Studies on Inhibitory Effect of Inulaj ap onica Extract against 6 Phytopathogenic Fungi WANG H ng-gang1, 2, WANG Wen-qia 2, 3, HAN Xiu-ying2, 3, ZHANG Xia-feng2, 3 , MA Zh-i qiang2, 3, LI H ng-xia2, 3 , CHI Gu-t ng1 ( 11Department f Pesticide Science, Plant Pr tecti n C llege, Agricultural University f Hebei, Ba ding 071001, China; 21Institute f Plant Pr tecti n,Hebei Academy f Agriculture and F restry Sciences, Ba ding 071000, China; 31IPM Center f Hebei Pr vince, Ba ding 071000, China) Abstract: Inhibit ry effect f ethan l extracts fr m r ts, stems, leaves, fl wers and wh le plants f I.j aponica ( c l- lected in Chengde, Hebei pr vince) and f fracti ns fr m partiti ned extracts f fl wers in 4 s lvents with different p larity against Sphaerothecaf uliginea, Pseudoperonospora cubensis, Colletotrichum orbiculare, Botrytis cinerea, Alternaria solani and Fulviaf ulva was tested. The results sh wed that extracts fr m different parts f I.j aponica exhibited different in- hibit ry activities, inhibit ry effect f extract fr m fl wers was str nger than extract fr m the ther parts. EC value f ex- 50 tract fr m fl wers t P. cubensis was 5148mg/ mL.The crude extract fr m fl wers at 1215 mg/ mL pr