dc.contributor.author | Hutchinson, M.J. | |
dc.contributor.author | Chebet a, D.K | |
dc.contributor.author | Emongor., V.E. | |
dc.date.accessioned | 2013-06-25T07:04:56Z | |
dc.date.available | 2013-06-25T07:04:56Z | |
dc.date.issued | 2003 | |
dc.identifier.citation | M.J. Hutchinson, D.K. Chebet and V.E. Emongor. 2003. Effect of Accel, Sucrose and Silver thiosulphate on the Water Relations and Post harvest Physiology of Cut Tuberose Flowers. African Crop Science Journal II: 279-287 | en |
dc.identifier.uri | http://erepository.uonbi.ac.ke:8080/xmlui/handle/123456789/39435 | |
dc.description.abstract | This
study
investigated
the
influence
of
cytokinins,
gibberellins,
sucrose
and
silver
thiosulphate
on
water
relations
and
post-harvest
physiology
of
cut
tuberose
(Polianthes
tuberose
L.)
flowers.
Tuberose
flowers
held
in
de-ionised
water
(DIW)
had
a
vase
life
of
13
days
with
63%
floret
opening.
Addition
of
gibberellins
(G~+7)
in
the
vase
solution
had
no
effect
on
vase
life
or
floret
opening
along
the
spike.
Pulsing
of
the
cut
flowers
with
10%
sucrose
for
24
hr
before
transfer
to
DIW
improved
their
vase
life
by
4
days
and
improved
the
floret
opening
by
21
%
above
DIW
controls.
Addition
of
Benzylaminopurine
(BA)
at
low
concentrations
(25-50
mgL
-1)
improved
vase
life
of
the
cut
tuberose
stems
while
higher
concentrations
(75-100
mgL
-1)
gave
no
improvement.
A
24
hr
pulse
in
10%
sucrose
improved
the
vase-life
by
3.6
days
and
floret
opening
by
13%.
Pulsed
stems
transferred
to
holding
solutions
containing
various
concentrations
of
BA
improved
vase
life
by
an
extra
3
days
at
BA
concentration
of
25
mgL
-1.
Higher
BA
concentrations
gave
no
significant
(P>0.05)
improvement
over
the
pulsed
stems.
However,
floret
opening
was
greater
at
25
and
50
mg
L
-1
BA
(P<0.05).
Of
all
treatments,
STS
gave
the
greatest
improvement'
of
vase
life
at
7
days
longer
than
DIW
control
and
3.5
days
longer
than
the
sucrose-pulsed
solutions.
Very
high
(88%)
floret
opening
was
observed
in
cut
stems
held
in
STS.
There
was
a
general
decrease
in
water
uptake
by
tuberose
stems
over
time.
Lowest
rates
of
water
uptake
werepoted
in
all
treatments
after
8
days.
Among
the
treatments,
the
lowest
water
uptake
was
recorded
in
the
DIW
control
and
in
G~+7
treatments.
Greatest
uptake
was
in
10%
sucrose
+
25
mgL
-1
BA.
Transpiration
losses
were
greatest
for
25
mgL
-1
BA
and
least
for
10%
sucrose.
Differences
among
treatments
in
transpiration
losses
were
noted
only
in
the
flfst
10
days.
In
general,
water
deficit
was
noted
in
cut
flowers
held
in
DIW
and
in
G~+7
after
day
6,
while
stems
in
BA
treatments
manifested
symptoms
from
day
8.
The
cut
flowers
pulsed
in
10%
sucrose
and
held
in
25
and
50
mg
L
-1
BA
and
in
2
roM
STS
only
showed
water
deficit
status
from
day
12
of
~
their
va.-Jife.
Overall
results
suggest
that
STS,
BA
and
sucrose
can
help
improve
tu~iose
vase
life
and
floret
opening
through
improvement
of
the
water
balance. | en |
dc.language.iso | en | en |
dc.publisher | University of Nairobi | en |
dc.title | Effect Of Accel, Sucrose And Silver Thiosulphate On The Water Relations And Post harvest Physiology Of Cut Tuberose Flowers | en |
dc.type | Article | en |
local.publisher | Plant Science and Crop Protection | en |