Applied and Environmental Soil Science,
Journal Year:
2024,
Volume and Issue:
2024(1)
Published: Jan. 1, 2024
Plant
growth–promoting
bacteria
(PGPB)
can
play
an
essential
role
as
biofertilizers
to
increase
pasture
efficiency
and
reduce
the
application
of
agrochemicals.
growth
be
potentialized
when
these
are
combined
with
silica
nanoparticles
(SiNPs).
The
present
study
aimed
evaluate
effect
PGPB
associated
SiNPs
on
bahiagrass
(
Paspalum
notatum
)
seedlings.
were
isolated
from
rhizospheric
soils
leaves
spp.
grown
in
tropical
high‐altitude
region
Brazil
selected
by
their
ability
fix
nitrogen,
solubilize
phosphate,
synthesize
indoleacetic
acid
(IAA).
They
identified
Alcaligenes
faecalis
,
Enterobacter
asburiae
Serratia
marcescens
16S
rDNA
sequencing.
Spherical
(85
nm
diameter)
synthesized
hydrolysis
silicon
precursor
tetraethyl
orthosilicate
(TEOS),
characterized
infrared
spectroscopy
scanning
electron
microscopy
(SEM)
applied
at
5%
(0.05
mg·mL
−1
10%
(0.1
concentrations.
Disinfected
P.
seeds
treated
PGPB,
SiNPs,
+
cultivated
magenta
boxes
containing
peat,
sand,
perlite.
seedlings
evaluated
for
germination
percentage,
root
length,
shoot
dry
weight,
weight.
subjected
same
treatments
also
Petri
dishes
0.7%
agarose.
roots
stained
diaminobenzidine
tetrahydrochloride
(DAB)
visualized
using
a
light
microscope
confirm
bacterial
colonization.
three
strains
without
promoted
S.
treatment
presented
greatest
both
concentrations
nanosilica
improved
or
maintained
lengths.
Treatments
E.
showed
100%
seed
germination.
Seedlings
inoculated
alone
highest
all
increased
weight
compared
control.
SiNPs’
concentration
A.
positively
affected
seedlings’
growth.
This
suggests
that
improve
development
need
applications
Revista de Gestão e Secretariado (Management and Administrative Professional Review),
Journal Year:
2024,
Volume and Issue:
15(10), P. e4258 - e4258
Published: Oct. 25, 2024
Esse
estudo
teve
como
objetivo
avaliar
a
resposta
da
aplicação
do
fungicida
químico
e
biológico
suas
ações
no
controle
de
doenças,
sob
o
desenvolvimento
viabilidade
econômica
na
cana-de-açúcar.
O
delineamento
experimental
adotado
foi
blocos
casualizados
com
seis
tratamentos,
quatro
repetições,
totalizando
24
parcelas.
Os
dados
foram
submetidos
análise
variância
pelo
teste
F
as
médias
comparadas
Scott-Knott
(p≤0,05).
A
composição
produto
é
(Bacillus
pumilus
CNPSo
3203;
Bacillus
velezensis
3602
subtilis
2720)
B
(AZOXITROBINA
120
g/L
TEBUCONAZOLE
200
g
L-1).
tratamentos
foram:
T1-
Controle;
T2-
PRODUTO
dose
0,3
L
ha-1;
T3-
0,75
T4-
ha-1
+
em
segunda
T5-
primeira
T6-
ha-1.
variedade
RB041443,
avaliações
severidade
doença,
altura
planta
(AP),
diâmetro
caule
(DC),
produtividade
realizadas
Teor
Sólidos
Solúveis
(°Brix)
Tonelada
cana
por
hectare
(TCH).
resultados
ambos
fungicidas
são
eficientes
patógenos
cana-de-açúcar,
os
T2
T4
mais
expressivos
para
variável
teor
sólidos
solúveis,
maiores
valores
TCH
obtidos
T5
T6
nestes
relação
testemunha.Planta,
largura
planta,
número
folhas
caulinar.
Não
observadas
diferenças
nas
trocas
gasosas
das
doenças
entre
cultivares
algodoeiro.
Applied and Environmental Soil Science,
Journal Year:
2024,
Volume and Issue:
2024(1)
Published: Jan. 1, 2024
Plant
growth–promoting
bacteria
(PGPB)
can
play
an
essential
role
as
biofertilizers
to
increase
pasture
efficiency
and
reduce
the
application
of
agrochemicals.
growth
be
potentialized
when
these
are
combined
with
silica
nanoparticles
(SiNPs).
The
present
study
aimed
evaluate
effect
PGPB
associated
SiNPs
on
bahiagrass
(
Paspalum
notatum
)
seedlings.
were
isolated
from
rhizospheric
soils
leaves
spp.
grown
in
tropical
high‐altitude
region
Brazil
selected
by
their
ability
fix
nitrogen,
solubilize
phosphate,
synthesize
indoleacetic
acid
(IAA).
They
identified
Alcaligenes
faecalis
,
Enterobacter
asburiae
Serratia
marcescens
16S
rDNA
sequencing.
Spherical
(85
nm
diameter)
synthesized
hydrolysis
silicon
precursor
tetraethyl
orthosilicate
(TEOS),
characterized
infrared
spectroscopy
scanning
electron
microscopy
(SEM)
applied
at
5%
(0.05
mg·mL
−1
10%
(0.1
concentrations.
Disinfected
P.
seeds
treated
PGPB,
SiNPs,
+
cultivated
magenta
boxes
containing
peat,
sand,
perlite.
seedlings
evaluated
for
germination
percentage,
root
length,
shoot
dry
weight,
weight.
subjected
same
treatments
also
Petri
dishes
0.7%
agarose.
roots
stained
diaminobenzidine
tetrahydrochloride
(DAB)
visualized
using
a
light
microscope
confirm
bacterial
colonization.
three
strains
without
promoted
S.
treatment
presented
greatest
both
concentrations
nanosilica
improved
or
maintained
lengths.
Treatments
E.
showed
100%
seed
germination.
Seedlings
inoculated
alone
highest
all
increased
weight
compared
control.
SiNPs’
concentration
A.
positively
affected
seedlings’
growth.
This
suggests
that
improve
development
need
applications
