Please use this identifier to cite or link to this item: http://krishikosh.egranth.ac.in/handle/1/5810057165
Authors: Jilubhai, Makwana Rushabh
Advisor: Dhaduk, B. K.
Title: Standardization of Storage Technology and Improveing Storage life of Different Rose Cultivars
Publisher: Floriculture and Landscaping Department, Aspee College of Horticulture and Forestry Gujarat Agriculture University, Navsari
Citation: MAKWANA RUSHABH JILUBHAI_57777
Language: en
Type: Thesis
Pages: 313
Agrotags: null
Keywords: Horticulture
Abstract: 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.
Subject: Horticulture
Theme: Ph.D. Thesis
These Type: Ph.D
Issue Date: 2012-07
Appears in Collections:Doctoral Theses

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