Effect of rhizobacteria on plant growth of different vegetables
Makaleler > Tam Makale · 2008
Yazarlar: Funda Kıdoğlu, Ayşe GÜL, Hatice ÖZAKTAN, Yüksel TÜZEL
ACTA HORTICULTURAE, AHCI İndekslerine Giren Dergi, Uluslararası, Scopus, 2008
Özet
<p><span style="font-family: arial, verdana, sans-serif; font-size: medium;">The objective of this study was to evaluate possible effects of different strains of plant growth promoting rhizobacteria –PGPR- on growth of cucumber, pepper and tomato. Six bacterial strains from the collection of the Department of Plant Protection, Agricultural Faculty of Ege University (18/1K: </span><i style="font-family: arial, verdana, sans-serif; font-size: medium;">Pseudomonas putida, </i><span style="font-family: arial, verdana, sans-serif; font-size: medium;">21/1K: </span><i style="font-family: arial, verdana, sans-serif; font-size: medium;">Enterobacter cloacae</i><span style="font-family: arial, verdana, sans-serif; font-size: medium;">, 62: </span><i style="font-family: arial, verdana, sans-serif; font-size: medium;">Serratia marcescens</i><span style="font-family: arial, verdana, sans-serif; font-size: medium;">, 70: </span><i style="font-family: arial, verdana, sans-serif; font-size: medium;">Pseudomonas fluorescens</i><span style="font-family: arial, verdana, sans-serif; font-size: medium;">, 66/3: </span><i style="font-family: arial, verdana, sans-serif; font-size: medium;">Bacillus </i><span style="font-family: arial, verdana, sans-serif; font-size: medium;">spp., 180: </span><i style="font-family: arial, verdana, sans-serif; font-size: medium;">Pseudomonas putida</i><span style="font-family: arial, verdana, sans-serif; font-size: medium;">) were compared with two commercial products (</span><i style="font-family: arial, verdana, sans-serif; font-size: medium;">Bacillus amyloliquefaciens </i><span style="font-family: arial, verdana, sans-serif; font-size: medium;">FZB24, </span><i style="font-family: arial, verdana, sans-serif; font-size: medium;">Bacillus amyloliquefaciens </i><span style="font-family: arial, verdana, sans-serif; font-size: medium;">FZB42) and control (without bacteria inoculation). Native PGPR strains were assayed for their ability to produce IAA and phosphate solubilization in vitro. IAA production varied between 0.700 and 0.065 µg ml</span><sup style="font-family: arial, verdana, sans-serif;">-1</sup><span style="font-family: arial, verdana, sans-serif; font-size: medium;">. Native isolates excluding </span><i style="font-family: arial, verdana, sans-serif; font-size: medium;">Bacillus </i><span style="font-family: arial, verdana, sans-serif; font-size: medium;">spp. strain 66/3 had phosphate solubilization ability. Rhizobacteria were tested in vivo to determine their effects on seedling growth. The results indicated significant increases in growth of cucumber, tomato and pepper in response to inoculation with PGPR. According to the results of in vitro and in vivo tests, 18/1K, 62, 70 and 66/3 were selected as promising strains among the isolates of Ege University for future studies.</span><br></p>