Growth
response of the rice plant (Oryza
sativa L.) on the
introduction of fluorescent pseudomonads
Febri Doni,
Azwir Anhar, Linda Advinda
Fakultas Matematika
dan Ilmu Pengetahuan Alam, Jurusan Biologi, Laboratorium Fisiologi Tumbuhan dan
Mikrobiologi, Universitas Negeri Padang
ABSTRACT
Fluorescent pseudomonads (Pf) is
the biological agents that have
been reported to increase the growth of various types
of plants because it can produce fitohormon (auxin,
gibberellin, and cytokinin),
solvent enzyme phosphate,
and siderophore. Information about the ability of Pf
in enhancing the growth of rice plant (Oryza sativa L.) is still limited. This
study aims to determine the influence of introduction of Pf isolates
on the growth of rice
plants.
Research
was
conducted from June
to August 2010 in the Laboratory of Biology, State University of Padang and
Laboratory of Nuclear Science and Technology Department of Land Utilization of Andalas
University Padang. Vegetative growth
of rice was monitored on this research. This research is
experimental, the design used was completely
randomized design with 5 treatments and 5
replications. The treatment given was different
types of isolates are: Pf isolates
Mi.1, Kd.7,
Cas.3, Mp.2 (Advinda‘s
collection) and -Pf
(Without Pf). Data
were analyzed using ANOVA and
further test DNMRT at 5% significance level.
The
results
showed that Cas.3 is the best Pf isolates
in increasing rice
plant height, Mp.2 and Cas.3 are the best Pf
isolates in increasing the number of
tillers of rice, and
Mp.2 is the best Pf isolates in
improving the wet weight of
rice plants. Pf introduction
did not significantly affect the biomass
of rice plant and P content of rice plant canopy.
Keywords:
Fluorescent pseudomonads, biological agents, growth of rice plants.
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