6种生物源杀菌剂对甘薯根腐病菌的室内毒力测定

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ZH AO Y on g- qi a n g,SU N H ou - j un ,C H EN X i a o - yu ,X IN G Ji- yi n g,X IE Y i- p in g ( Sweet Pota to Res ea rch In s ti tute,C hin es e A ca dem y of Agricultura l Scien ces ,X uz hou 22 1 1 21 ,C hi n a ) A b� � � a � c � � : � The � � � � tox � � i citi esofs ix b iogen ic f un � gici � � � desto � � � s weet p ota to root rot [F ( M a rt. )Sa cc. f . s p. M cC lure] w ere tes ted b y the m ycelium growth ra te m ethod i n the la b ora tory. The res ultss how ed tha t Zhon gs hen gj un s u ,tetra m ycin a n d ethylicinha d b etter i n hi b itory ef fectsto the hyp haof F . ,thei r EC 50 v a lueswere 42 3. 8 004,28 7. 0456 a n d 441 . 0421 m g/L res p ecti v ely ,a n d thei r EC 90 v a luesw ere 26 04. 8 925 ,3294 . 1 057 a n d 61 1 5 . 341 9 m g/L res p ecti v ely. Ina ddition ,i t isb eli ev ed tha t tetra m ycina n d Zhon gs hen gj un s u ha v e higher p oten ti a l inthe con trol of s weet p ota to root rot i n con s i d era ti onofthei r a ctiv e in gredi en t con ten t. K : Bi ogen i cf un gi ci d es ;Sw eet p ota to;Root rot;Tox i ci ty tes t
EC 5 0� EC 90 � � � � � � � �� � � �� � � � 3 � � � � � � � � � �� � , �� � EC 5 0� EC 90 �� � � �� � �� � �� � , � �� � � � �� � 5 � �, � , � � � EC 50 � EC 90 � � � � � � � � � � ��� �� ��� �� �� � �� �� �� � � � � � � �� �, � �� � � � �� � � � �� � � � � �� � � �� � �� ��� � � �, � � � � � � � � �, �� �� �� � ��� �� � � � �� � �� � �� , � � � � �� � �� � �� � �� � �, � �� �� � � � [6] ��� � �� , �� ��� � � , �� � � �� �� ��� �� �� �� �� � �� ��� � � ��� :
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: 2 01 0 - 11 - 11 � � � � : �� � � � ( n ycytx � -� 1 6 - B - 9) ; � � �( n yhyz x07 - 3 - 56 - 1 E ) ; � "948 " : ( 1 98 6�) , � � � � �� � �� �, � �� � � , �� �, ��, � �� � � �� ( 2 006 - G 2 1 - 08 ) .
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