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Standardization of Storage Technology and Improveing Storage life of Different Rose Cultivars

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Title Standardization of Storage Technology and Improveing Storage life of Different Rose Cultivars
 
Creator Jilubhai, Makwana Rushabh
 
Contributor Dhaduk, B. K.
 
Subject null
 
Description Investigations were conducted on post harvest studies in
rose with a view to evaluate appropriate storage technique, pulsing
solution and further to maximize storage duration for rose cut
flowers. Thus, three experiments viz., Ex. A, Standardization of
storage technique (dry storage with different packaging films and
wet storage in different holding solutions) in three rose cultivars
Bordeaux, Poison and Avalanche, Ex. B, Standardization of prestorage
pulsing with different chemicals in rose (best treatment
combination of storage method and cultivar from Ex. A) and Ex. C,
standardization of storage duration in rose (best treatment
combination of storage method and cultivar from Ex. A and best
pulsing solution from Ex. B) were conducted in the department of
Floriculture and Landscape Architecture, ACHF, Navsari
Agricultural University, during the year 2010-11 and 2011-12. All
three experiments were kept in storage at 2°C temperature. First
experiment was conducted in completely randomized design with
factorial concept whereas second and third experiments were
conducted in completely randomized design.
First experiment was conducted to study the effect of
different storage (2°C) techniques viz., dry storage with packaging
of HOPE, LOPE, PP (polypropylene) and without packaging and wet
storage methods of holding cut stems in water, A1 2(S04h 200mg/l
and citric acid 200mg/l solutions on flower quality and vase life of
rose. As compared to dry storage at 2°C with different packaging
films, wet storage failed to restrict marketable bud stage but showed
increased bud opening by the end of the storage period (10 days). In
case of dry storage, all packaging films viz., HOPE, LOPE and PP
packaged stored (2°C) flowers showed promising result with
maintained bud stage and flower quality by the end of the storage
period. Among three packaging films cut flowers packed with PP
packaging maintained higher CO2 (9.72%) and decreased O2
(11.24%) per cent within the packaging film as compared to HOPE
and LOPE packaging in cold stored rose cut flowers as recorded just
after storage. The flower buds dry stored (2°C) without any
packaging material were highly deteriorated by the end of the
storage period with reduced bud size and increased bent neck. The
HOPE, LOPE and PP stored at 2°C rose buds showed significantly,
negligible physiological loss in weight, absence of bent neck after
storage, maintained higher water uptake, retention of fresh weight,
catalaze and peroxidaze activities and protein content with improved
bud size, petal length and width during vase life as compared to
without packaged stored and wet stored rose buds. Membrane
Stability Index (MSI) of the petal tissue, dry weight, Total Soluble
•
Sugar (TSS) and Total Dissolved Solutes (TDS) of petals were also
significantly higher in PP packaged stored at 2°C rose on 2nd day,
4th and 6th day of vase life, which delayed the petal senescence and
enhanced the vase life as compared to all other treatments of rose.
Overall flower quality with regard to turgidity, colour & freshness
were also maintained higher in PP, HDPE and LDPE packaged
stored (2°C) rose cut flowers (similar to fresh flowers) as compared
to other storage techniques like wet storage in water, Ah(S04h and
citric acid solutions and dry storage without any packaging rose cut
flowers.
Second experiment was conducted to study the effect of
pre-storage pulsing (3h) with different pUlsing solutions viz., water,
HQC 200mgll, sucrose 50gll + HQC 200 mg/l, citric acid 200mgll,
a-lipoic acid 200mgll, GA3 100 mg/l and BA 100mg/l on PP
packaged rose cut flowers cv. Bordeaux stored at 2°C temperature
for storage duration of 10 days. Pre-storage pulsing of GA3 100mgll
solution treatment showed highly promising results with maintained
bud stage and flower quality just after storage and at 2nd
, 4th and 6th
DAS in vase life. Further, the same chemical treated cut flowers
showed significantly, decreased physiological loss in weight, higher
water uptake and retention of fresh weight at 2nd
, 4th and 6th DAS.
Same chemical treated roses also maintained qualitative parameters
like bud size, petal size, bud diameter, percent bud opening,
pigment content and decreased bent neck with increased quantitative
parameters like MSI, TDS, TSS, anthocyanin content in petals,
catalaze and peroxidaze activities, protein content and dry weight as
compared to other pulsed PP packaged stored (2°C) roses.
•
•
•
Third experiment was conducted to study the effect of
storage durations viz., 0, 5, 10, 15, 20, 25 and 30 days on pulsed
with GAll OOmg/1 solution and PP packaged stored (2°C) rose cut
flowers. With increase in the storage duration trend showed a
decrease in all the qualitative and quantitative parameters however,
pulsed with GA3 100mg/l and PP packaged rose cut flowers, stored
at 2°C temperature for durations of 5 to 20 days were at par with
GAlI00mg/l pulsed fresh flowers. Higher retention of fresh weight
(i.e. low physiological loss in weight and higher fresh weight at 2nd
,
4th and 6th DAS) and water up take was observed maintained higher
up to storage durations of 20 days whereas, it declined in long
duration of storage (25 and 30 days). GAl 100mg/l pulsed fresh
flowers recorded higher Membrane Stability Index (MS!) of the
petal tissue, Total Dissolved Solutes (TDS) of petals, petal Total
Soluble Sugar (TSS), anthocyanin content, catalaze and peroxidaze
activities, protein content and dry weight which was at par with 5,
10, 15 and 20 days PP packaged stored (2°C) cut roses. Overall
flower quality and vase life of PP packaged stored (2°C) rose cut
flowers cv. Bordeaux for a duration of 5, 10, 15 and 20 days were at
par with GAll OOmg/l solution pulsed fresh flowers.
On the basis of results obtained in present investigation,
it can be concluded that combination of dry • storage In
polypropylene (PP) packaging with pre storage pulsing of GAl
100mg/l solution treatment was successful in improving post harvest
life and quality in rose cut flowers, cv. Bordeaux up to 20 days at
2°C temperature.
 
Date 2018-07-05T06:53:51Z
2018-07-05T06:53:51Z
2012-07
 
Type Thesis
 
Identifier MAKWANA RUSHABH JILUBHAI_57777
http://krishikosh.egranth.ac.in/handle/1/5810057165
 
Language en
 
Format application/pdf
 
Publisher Floriculture and Landscaping Department, Aspee College of Horticulture and Forestry Gujarat Agriculture University, Navsari