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Frontiers of Agriculture in China

ISSN 1673-7334

ISSN 1673-744X(Online)

CN 11-5729/S

Front Agric Chin    2011, Vol. 5 Issue (3) : 382-387     DOI: 10.1007/s11703-011-1118-y
RESEARCH ARTICLE |
Effect of dry and wet storage at cool temperatures on the postharvest performance of Ranunculus asiaticus L. flowers
Waseem SHAHRI(), Inayatullah TAHIR, Sheikh Tajamul ISLAM, Mushtaq Ahmad BHAT
Plant Physiology and Biochemistry Research Laboratory, Department of Botany, University of Kashmir, Srinagar 190006, India
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Abstract  

A study was undertaken to assess the effect of different storage temperatures on senescence and postharvest performance of isolated flowers of Ranunculus asiaticus L.. The main aim of the work was to develop a cost-effective storage protocol to reduce the postharvest losses and to bring out the transportation of cut flowers of R. asiaticus. The flowers were subjected to two different storage treatments, dry storage and wet storage, and their postharvest performance was compared under laboratory conditions. For this purpose, the buds were harvested at 8:00 AM at loose bud stage (Stage II of flower development). The harvested buds were cut to a uniform size of 15 cm and processed for dry or wet storage. For dry storage, the buds were packed after wrapping them in moistened filter papers and kept at 5oC and 10oC. For wet storage, the buds were held in distilled water in separate glass beakers kept at 5oC and 10oC, respectively. A separate set of buds each for dry and wet storage was kept at room temperature (15±2)oC. After 72 h storage, the buds were kept at room temperature in distilled water. The average life of an individual flower that opened fully was about 4–5 days. The buds kept under wet storage at 5oC and 10oC for 72 h maintained their premature status, while the buds held at room temperature for 72 h generally bloomed. All the buds stored dry maintained their premature status irrespective of storage temperature. Storage of buds for 72 h at 5oC, followed by transferring to distilled water improved the longevity by about 5 to 6 days. Cold storage treatment before transferring to holding solution improved floral diameter, membrane integrity besides maintaining higher fresh and dry mass of flowers, sugar content, soluble proteins, and phenols. Our results suggested that wet and dry storage of premature buds of R. asiaticus for 72 h at 5oC, followed by placing them in distilled water, improved the cut flower longevity and can be used as effective postharvest storage treatments for this beautiful cut flower.

Keywords longevity      sugars      phenols      cold storage      membrane permeability     
Corresponding Authors: SHAHRI Waseem,Email:waseem.bot@gmail.com   
Issue Date: 05 September 2011
URL:  
http://academic.hep.com.cn/fag/EN/10.1007/s11703-011-1118-y     OR     http://academic.hep.com.cn/fag/EN/Y2011/V5/I3/382
Fig.1  Effect of dry and wet storage for 72 h at different storage temperatures [Room temperature, RT ((15±2)oC), 10oC and 5oC] on different traits of flowers. Figures 1A–J represent vase life, solution uptake, conductivity of leachates, floral diameter, fresh mass, dry mass, sugar fractions (1G and 1H), soluble proteins, and total phenols at day 6 after transferring to (DW) in isolated flowers of , respectively. LSD is computed at .
Fig.2  Flower buds of before (A) and after (B) 72 h postharvest dry storage at different temperature regimes. From left to right, the arrangement buds kept at room temperature (RT, (15±2)oC), 10oC, and 5oC is shown.
Fig.3  Flower buds of held in glass beakers containing distilled water (DW). Figures 3A and 3B are carried out before and after 72 h postharvest on wet storage at different temperature regimes, respectively. From left to right, the arrangement of buds kept at room temperature (RT, (15±2)oC), 10oC, and 5oC is shown.
Fig.4  Flowers of held in distilled water (DW) after 72 h dry storage at different days after transfer to DW. Figures 4A–C represent days 2, 4, and 6 after transfer (Fig. C). From left to right, the arrangement of the flasks containing buds previously held at different temperatures, namely, (RT, (15±2)oC), 10oC and 5oC is shown.
Fig.5  Flowers of held in distilled water (DW) after 72 h wet storage at different days after transfer to DW. Figures 5A–C represent days 2, 4, and 6, respectively, after transfer. From left to right, the arrangement of the flasks containing buds previously held at different temperatures, namely, (RT, (15±2)°C), 10°C and 5°C.
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