Abstract: Preliminary explorat ion of the bacteria that produce 2, 4-DAPG colonize the rhizoplane and cont rol tomato southern bacterial w ilt, it is know n that 12 offering stains had different effect on pathogent ic bacter-i um, CPF₁0 was the best among all treatment s in cont rolling the pathogenic bacterium. Fermented broths of st rains CPF₁0 and 2P24 had considerable inf luence w ith vig or of tomato seed g ermination and grow th of corcule , culture stock of st rain CPF₁0 affected them deep. Bacteria strains 2P24 and CPF₁0 colonized the rhizoplane. In g reenhouse ex periments, 2P24 was the best among all treatments in cont rolling the disease, w hile variation coeff icient of CPF₁0 w as the smallest in all the t reatment s, so controlling ef fect of CPF₁0 w as the most stable.

Key words: Bacteria producing 2, 4-DAPG, Tomato southern bacterial w ilt, Vigor of g ermination, Colonizat ion, Controlling effect

CLC Number: 

• S641.2

• S482.7

• S436.412.1