Frontiers in Plant Science,
Год журнала:
2024,
Номер
15
Опубликована: Авг. 6, 2024
(maize)
is
a
globally
significant
cereal
crop
with
diverse
applications
in
food,
feed,
and
industrial
products.
However,
maize
cultivation
often
challenged
by
environmental
stressors
such
as
heavy
metal
toxicity
drought
stress
(DS).
Heavy
metals
like
cadmium
(Cd)
lead
(Pb)
can
accumulate
soil
through
activities
improper
waste
disposal,
posing
threats
to
plant
growth
development.
Drought
further
exacerbates
these
challenges
limiting
water
availability
affecting
physiological
processes
plants.
This
study
explores
the
impact
of
Cd
Pb
toxicity,
well
DS,
on
development,
investigates
potential
mitigating
effects
various
treatments,
including
gibberellic
acid
(GA3),
biochar
(BC),
rhizobacteria
(RB),
their
combinations.
Global
climate
change
accelerates
the
challenges
of
agricultural
drought
spells,
which
are
alarming
for
food
security
and
can
trigger
scarcity.
Therefore,
improving
soil-water
retention
capability
crop
resilience
is
becoming
more
important
sustainable
agriculture.
This
study
investigates
individual
combined
effects
biochar
potassium
on
soil
water
retention,
resilience,
related
physio-biochemical
mechanisms
over
a
50-day
growth
period
in
potted
plants.
Pine
needle
(350
g/10
Kg
soil)
was
used
during
preparation
stage
while
sulfate
(100
mg/L)
applied
as
foliar
spray
at
development
(10
days)
vegetative
stages
(45
under
three
stress
conditions:
control
(100%
FC),
mild
(75%
FC)
severe
(40%
FC).
The
results
revealed
that
application
significantly
increased
morphological,
physiological,
biochemical
attributes
maize
plants
stress,
shoot
fresh
weight
by
11%,
6%,
5%,
root
19%,
23%,
length
17%,
16%,
21%,
30%,
29%
control,
mild,
conditions,
respectively.
Similarly,
relative
contents
(RWC)
12%,
20%,
potential
(Ψ)
26%,
22%,
24%,
osmotic
(Ψs)
100%,
59%,
turgor
(Ψp)
28%,
35%,
51%
treatment
compared
to
stress.
Additionally,
with
also
improved
membrane
stability
integrity,
cell
wall
loosening,
lipid
peroxidation,
protein
denaturing
decreasing
electrolytic
leakage
43%,
proline
27%,
hydrogen
peroxidase
47%,
45%,
41%,
malondialdehyde
28%
through
activation
enzymatic
(CAT,
POD,
SOD)
non-enzymatic
(TSS,
AsA,
GSH)
antioxidants.
Furthermore,
nutrient
uptake
enhanced,
N
increasing
P
64%,
82%,
52%,
K
42%,
35%
shoots
normal,
These
improvements
mitigated
dehydration,
reduced
transpiration
inefficiency
delayed
senescence,
ultimately
supporting
plant
In
conclusion,
integrating
effectively
improves
alleviates
oxidative
enhances
tolerance
strategy
play
crucial
role
agriculture
mitigating
adverse
drought-prone
regions.
Journal of soil science and plant nutrition,
Год журнала:
2024,
Номер
24(3), С. 5220 - 5234
Опубликована: Июль 5, 2024
Abstract
Purpose
:
This
study
thoroughly
investigates
innovative
amendment
salicylic
acid
(SA)
modified
rice
husk
biochar
(SABC)
designed
to
improve
boron
(B)
and
salinity
tolerance
in
lettuce,
providing
a
comprehensive
exploration
of
their
potential
effects
alleviating
stress-induced
challenges.
Methods
Scanning
Electron
Microscopy
(SEM),
Fourier
Transform
Infrared
Spectroscopy
(FTIR)
Raman
spectroscopy
were
used
for
the
molecular
chemical
characterization
samples.
The
treatments
consisted
control,
40
mM
NaCl
plus
20
mg
B
kg
-1
(NaCl
+
B),
5
g
SA-modified
SABC).
Results
Under
conditions
salt
toxicity,
SABC
treatment
significantly
prevented
decrease
plant
weight
induced
by
stress.
reduced
concentrations
B,
sodium
(Na),
chloride
(Cl)
plants,
while
increasing
potassium
(K)
silicon
(Si).
hydrogen
peroxide
concentration,
which
increased
as
result
was
decreased
with
SABC.
activities
antioxidant
enzymes
superoxide
dismutase
(SOD)
ascorbate
peroxidase
(APX)
showed
significant
increase
under
stress,
but
due
positive
effect
reducing
there
these
enzymes.
Conclusions
results
obtained
from
this
indicate
that
is
effective
Testing
molecule
different
plants
various
stress
could
provide
contributions
literature.
Frontiers in Plant Science,
Год журнала:
2024,
Номер
15
Опубликована: Авг. 6, 2024
(maize)
is
a
globally
significant
cereal
crop
with
diverse
applications
in
food,
feed,
and
industrial
products.
However,
maize
cultivation
often
challenged
by
environmental
stressors
such
as
heavy
metal
toxicity
drought
stress
(DS).
Heavy
metals
like
cadmium
(Cd)
lead
(Pb)
can
accumulate
soil
through
activities
improper
waste
disposal,
posing
threats
to
plant
growth
development.
Drought
further
exacerbates
these
challenges
limiting
water
availability
affecting
physiological
processes
plants.
This
study
explores
the
impact
of
Cd
Pb
toxicity,
well
DS,
on
development,
investigates
potential
mitigating
effects
various
treatments,
including
gibberellic
acid
(GA3),
biochar
(BC),
rhizobacteria
(RB),
their
combinations.
