Field performance of a weed-suppressing Serratia plymuthica strain applied with conventional spraying equipment |
| |
Authors: | Ragnar Weissmann Claes Uggla Berndt Gerhardson |
| |
Institution: | (1) BioAgri AB, P.O. Box 914, 751 09 Uppsala, Sweden;(2) Plant Pathology and Biocontrol Unit, SLU, P.O. Box 7035, 750 07 Uppsala, Sweden |
| |
Abstract: | In previous glasshouse experiments, the soilbacterium Serratia plymuthica, strainA153, showed strong growth-suppressingactivities against a range of broad-leavedweeds after foliar spraying. In field tests ofthis strain in spring wheat, spring barley andpotatoes, variable effects were achieved on arange of weeds including Chenopodiumalbum, Stellaria media, Polygonumconvolvulus and Galeopsis speciosa. Atone site, good suppression of C. albumwas observed when the strain was applied in atank mix with another bacterial isolate or withreduced doses of a herbicide. Effects on weedsappeared to be independent of the applicationvolume (1000, 600, 500 l ha–1), but weedswere in some cases more strongly suppressed athigher bacterial doses. Barley yields weresomewhat reduced by the bacterial application,but wheat yields were less affected. AlthoughS. plymuthica suppressed certain weedswhen applied in the field in a simple aqueousformulation and with conventional sprayingequipment, the level of weed suppression wasunsatisfactory from a practical standpoint. |
| |
Keywords: | bioherbicide biological weed control Chenopodium album Galeopsis speciosa plant deleterious bacteria Polygonum convolvulus Stellaria media |
本文献已被 SpringerLink 等数据库收录! |
|