Effects of Plant Growth Promoting Rhizobacteria on the Growth of Hydroponicelly Grown Tomato Plants, Lycopersicon esculentum Mill. cv. 'Seokwang'

植物生長促進 根圈細菌이 養液栽培 토마토의 生長에 미치는 影響

This study was conducted to clarify the plant growth promoting effects of the various rhizobacteria on the growth of hydroponically grown tomatoes in rockwool, perlite and cocopeat cultures. Strains in terms of $Azospirilham\;sp.(4.5{\times}10^7cells/g),\;Rhodopseudomonas\;sp.(5.8{\times}10^5cells/g),\;Pseudomonas\;sp.(6.1{\times}10^6cells/g$), fusant of $Bacillus\;sp.\;and\;Corynebacterium\;glutamicum(9.1{\times}10^5cells/g$) was bacterialized into the root zone of tomatoes before sowing. Overall growth of tomato plants was promoted by bacterialization of the various rhizobacteria. Strains which showed the highest plan growth promoting effects of hydroponically grown tomatoes was Azospirillum sp., and optimum cultural substrates for the plant growth promotion by rhizobactera were in the order of cocopeat > perlite = rockwool cultures.

암면경, 펄라이트경 및 코코피트경 토마토의 생장촉진에 미치는 근권세균류의 영향을 구명하기 위하여 $Azospirilham\;sp.(4.5{\times}10^7cells/g),\;Rhodopseudomonas\;sp.(5.8{\times}10^5cells/g),\;Pseudomonas\;sp.(6.1{\times}10^6cells/g$) 및 Bacillus sp. 와 Corynebacterium glutamicum의 융합체($9.1{\times}10^5cells/g$) 등의 군주를 근권에 처리하였다. 군주의 근권처리시 토마토의 전반적인 생장이 대조구에 비해서 촉진되었으며, 식물생장촉진효과가 가장 우수한 군주는 Azospirillum sp.였다. 군주에 의한 식물생장 촉진 효과가 높은 재배방식 및 배지는 코코피트경 > 필라이트경 = 암면경 등의 순이었다.