scholarly journals CHARACTERISTICS OF POSTHARVEST QUALITY OF CHRYSANTHEMUM CUT FLOWERS UNDER PRETREATMENT WITH NITROGENOUS COMPOUNDS

2018 ◽  
Vol 17 (3) ◽  
pp. 83-90 ◽  
Author(s):  
Mohammad Kazem Souri ◽  
Somayeh Goodarzizadeh ◽  
Mohammad Ahmadi ◽  
Mansoure Hatamian
Keyword(s):  
Postharvest Quality ◽  
Cut Flowers ◽  
Nitrogenous Compounds

scholarly journals Conservation of Alstroemeria cut flowers stored under refrigeration

2020 ◽  
Vol 43 ◽  
pp. e50016
Author(s):  
Vanessa Cury Galati ◽  
Ana Carolina Corrêa Muniz ◽  
João Emmauel Ribeiro Guimarães ◽  
Claudia Machado Fabrino Mattiuz ◽  
Ben Hur Mattiuz
Keyword(s):  
Storage Period ◽  
Postharvest Quality ◽  
Cut Flowers ◽  
Floral Longevity ◽  
Randomized Design ◽  
Significant Difference ◽  
Relative Water ◽  
Peroxidase Enzymes ◽  
Storage Temperatures

Alstroemeria flowers have shown great importance in the world trade of cut flowers due mainly to its beauty and wide variety of colors. However, the durability of its inflorescences is usually hampered by the rapid yellowing of the leaves, which impairs their decorative quality. Cut flowers require the use of technologies to improve postharvest quality and floral longevity. This research aimed to study the postharvest conservation of inflorescences of Alstroemeria cv. Ajax at different storage temperatures. Floral stems were placed in containers with distilled water and stored at four temperatures (4, 8, 12, and 22ºC) for 12 days. The following analyses were performed: fresh mass variation, respiratory activity, relative water content, soluble and reducing carbohydrate contents, polyphenol-oxidase and peroxidase enzymes, pigments (anthocyanin and carotenoids), and longevity. The experiment was conducted in a completely randomized design, the results were submitted to analysis of variance (ANOVA), and the effect of treatments submitted to F-test. Significant differences were compared using the least significant difference (LSD) at 95% confidence interval (p ≤ 0. 05). The temperatures of 8 and 12ºC were effective in maintaining the postharvest quality of inflorescences during storage period, as they remained turgid due to transpiration reduction caused by low temperatures, and longevity reaching 46 and 22 days, respectively.

scholarly journals Impact of GA3 and spermine on postharvest quality of anthurium cut flowers (Anthurium andraeanum) cv. Arizona

2018 ◽  
Vol 241 ◽  
pp. 178-186 ◽  
Author(s):  
Adriano do Nascimento Simões ◽  
Nathalia Bandeira Diniz ◽  
Marcos Ribeiro da Silva Vieira ◽  
Sergio Luiz Ferreira-Silva ◽  
Monica Bartira da Silva ◽  
...  
Keyword(s):  
Postharvest Quality ◽  
Cut Flowers ◽  
Anthurium Andraeanum

scholarly journals Current progress in application of 1-Methylcyclopropene to improve postharvest quality of cut flowers

2021 ◽  
Author(s):  
Aung Htay Naing ◽  
Nay Myo Win ◽  
Swum Yi Kyu ◽  
In-Kyu Kang ◽  
Chang Kil Kim
Keyword(s):  
Postharvest Quality ◽  
Cut Flowers

scholarly journals 1-MCP and STS as ethylene inhibitors for prolonging the vase life of carnation and rose cut flowers

2004 ◽  
Vol 10 (4) ◽  
Author(s):  
F. Hassan ◽  
G. Schmidt ◽  
Y. M. Hafez ◽  
M. Pogány ◽  
J. Ankush
Keyword(s):  
Heavy Metal ◽  
Ethylene Production ◽  
Untreated Control ◽  
Postharvest Quality ◽  
Vase Life ◽  
Ethylene Inhibitors ◽  
Cut Flowers ◽  
Initial Weight ◽  
Silver Thiosulfate

The effect of STS and 1-MCP on the postharvest quality of carnation and rose cut flowers was studied. Cut flowers of Dianthus c..aryophyllus L. cv. Asso and Rosa hybritia cv. Baroness were treated with silver thiosulfate (STS) at 0.4 mM with sucrose at 50 g 1-t and 1-methylcyclopropene ( I -MCP) at 0.5 g m-3 for 611. Pretreatment with STS and 1-MCP significantly extended the vase life and minimized the % loss of initial weight of carnation and rose cut flowers comparing to the untreated control. The two chemicals applied inhibited the chlorophyll degradation and carbohydrate loss and hence, significantly improved the postharvest quality of carnation and rose cut flowers comparing to the control. Ethylene production by cut flowers was inhibited as a result of using these chemicals. In general, there were no differences between STS and (-MCP but the later does not have the heavy metal implications of STS treatment, and hence, using 1-MCP pretreatment for extending the vase life of carnation and rose cut flowers was recommended.

scholarly journals Dose Effect of Phytosanitary Irradiation on the Postharvest Quality of Cut Flowers

2020 ◽  
Vol 23 (2) ◽  
pp. 171-178
Author(s):  
Song Kwon ◽  
Hye Jin Kwon ◽  
Ju Hyun Ryu ◽  
Yu Ri Kim
Keyword(s):  
Dose Effect ◽  
Postharvest Quality ◽  
Cut Flowers

scholarly journals POSTHARVEST QUALITY OF ALSTROEMERIA CUT FLOWERS AFFECTED BY PREHARVEST SOIL AND AIR TEMPERATURE

HortScience ◽  
1992 ◽  
Vol 27 (6) ◽  
pp. 617c-617
Author(s):  
Rik van Gorsel ◽  
A. Verlind ◽  
A. van de Wiel ◽  
G. van Leeuwen
Keyword(s):  
Root Zone ◽  
Postharvest Quality ◽  
Vase Life ◽  
Cut Flowers ◽  
Greenhouse Soil ◽  
Flower Production ◽  
Air Temperatures ◽  
Number Of Stems ◽  
Pretreatment Solution

Low root zone temperatures in summer stimulate generative development of Alstroemeria, resulting in a higher flower production in winter. The effects of greenhouse soil and air temperatures on vase life and ornamental value were evaluated. Preharvest treatments were two locations (field stations), four air temperatures (9, 12, 15, 18C), four root zone temperatures (11, 14, 17C, uncontrolled) and three varieties ('Flamengo', 'Jubilee', 'Wilhelmina') in a factorial design. The flowers were placed in a commercial pretreatment solution for 24 hours immediately after harvest. After a two day transport simulation and rehydration for 3 hours at 5C, flowers were kept at 1.5 W.m-2 PAR (12hr/day), 20C and 60% RH. The experiment was done three times. Results from the first harvest showed that lowering the soil temperature increased the number of stems that had two whirls of flowers opening after harvest. Average vase life was two weeks. Low air temperatures increased whirl opening as well, and increased vase life by one or two days. Ornamental value and number of flower branches per stem were not affected.

scholarly journals Effect of oxalic acid on vase life and antioxidative activities of ‘Mero Star’ cut lily flowers

2021 ◽  
pp. 56-61
Author(s):  
Hafiz Farooq Anwar ◽  
Hafiz Muhammad Shoaib Shah ◽  
Abdul Waheed ◽  
Mudassar Anwar Butt ◽  
Hafiz Zafar-ul-Qasim ◽  
...  
Keyword(s):  
Oxalic Acid ◽  
Electrolyte Leakage ◽  
Oxidative Enzymes ◽  
Postharvest Quality ◽  
Vase Life ◽  
Cut Flowers ◽  
Relative Water ◽  
Flower Diameter ◽  
Peroxidase Enzymes

Lily (Lilium L. hybrids) is sub-tropical cut flower that can be grown in open place or in green house and has consumer demand in local as well as in offshore markets. Short vase life, postharvest decay of flowering petals, activities of oxidative enzymes, malondialdehyde contents, electrolyte leakage and low water ratio are the main problems in marketing of cut lilies. This study was carried out to investigate the effect of oxalic acid (OA) treatments on vase life (12 days) and postharvest quality of ‘Mero Star’ cut lily flowers. The flowering stems were placed in 2, 4 and 6% aqueous solution of OA for 12 days at 20±2 °C with 70±5% relative humidity. Flowers placed in 6% OA solution exhibited longest vase life and flower diameter with higher relative water content and increased fresh weight and reduced flower decay. Reduced malondialdehyde contents and electrolyte leakage with higher activities of catalase, superoxide dismutase and peroxidase enzymes were also noted in 6% OA-treated flowers. In conclusion, exogenous postharvest application of 6% OA extended vase life and maintained postharvest quality of cut flowers by reducing electrolyte leakage and malondialdehyde contents with higher antioxidative enzymes activities.

scholarly journals Polyamines accentuate vase life by augmenting antioxidant system in cut spikes of Consolida ajacis (L.) Schur.

2021 ◽  
Vol 27 (4) ◽  
pp. 495-504
Author(s):  
Aehsan ul Haq ◽  
Sumira Farooq ◽  
Mohammad Lateef Lone ◽  
Shazia Parveen ◽  
Foziya Altaf ◽  
...  
Keyword(s):  
Reactive Oxygen Species ◽  
Postharvest Quality ◽  
Flower Senescence ◽  
Vase Life ◽  
Distilled Water ◽  
Oxygen Species ◽  
Cut Flowers ◽  
Postharvest Senescence

Abstract Postharvest senescence is one of the crucial challenges limiting the marketability of cut flowers. Pertinently, recent investigations implicate extensive role of polyamines in regulation of flower senescence. The present study was envisaged to test the efficacy of poylamines in preserving the postharvest quality of Consolida ajacis (C. ajacis) cut spikes. The cut spikes of C. ajacis were subjected to various treatments of polyamines viz, 4 mM Spermine (SPM), 6mM Putrescine (PUT) and 6 mM Spermidine (SPD). A separate set of spikes held in distilled water represented the control. Our results authenticate a significant improvement in vase life of cut spikes of C. ajacis as compared to control. The increment in vase life was commensurate with the higher concentration of sugars, proteins and phenols in the tepal tissues. Polyamines amplified the activity of various antioxidant enzymes viz, superoxide dismutase (SOD), catalase (CAT) and ascorbate peroxidase (APX) to overcome the deleterious effects of reactive oxygen species (ROS). The membrane outflow of tepal tissues was profoundly reduced due to attenuated lipoxygenase (LOX) activity. These findings reveal conspicuous role of polyamines particularly SPM in modulation of flower senescence in cut spikes of C. ajacis.

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