Manutenção da qualidade de rosas cortadas cv. Vega em soluções conservantes

Pietro, Júlia de; Mattiuz, Ben-Hur; Mattiuz, Claudia Fm; Rodrigues, Teresinha de Jesus Deléo

doi:10.1590/s0102-05362012000100011

Cited by 8 publications

(7 citation statements)

References 15 publications

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“…After 12 days of storage the flowers that had the highest levels were the ones treated with 500 ppb of 1-MCP ( Figure 5A). The increase in the soluble carbohydrate content may be related to the increase in the carotenoids and anthocyanins content in the flowers, because the sugars are essential for the metabolism of the plants, also being associated with senescence of the flowers and increase in the pigments contents (Pietro et al, 2012).…”

Section: Resultsmentioning

confidence: 99%

Postharvest conservation of alstroemeria ‘ajax’ using 1-methylcyclopropene

et al. 2017

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Cut flowers deteriorate quickly and require postharvest technologies to increase their durability, which is usually around 8 days. Due to the scarce information related to postharvest physiology of Alstroemeria cut flowers, this study aimed to verify the best dose of 1-methylcyclopropene (1-MCP) to the postharvest conservation of inflorescences of Alstroemeria cv. Ajax, considering the factors associated with floral senescence and loss of the decorative life. The stems were submitted to four doses of 1-MCP (0; 100; 250; 500 ppb), then placed in containers with distilled water and stored at room temperature (22 ºC). The treatments were performed in triplicate containing three stems per replicate. The evaluations were performed every three days for a total of 12 days of storage. An F test was conducted, and the means were compared by the Tukey test (p≤0.05). Among the applied treatments the dose of 500 ppb of 1-MCP reduces the loss of water of the stems of alstroemerias during the storage period, keeping the petals turgids and the levels of carotenoids and anthocyanins high, however, this was not enough to keep the decorative quality of the flowers, once the 1-MCP did not solve the problems of yellowing of the leaves and floral openning, which are important characteristics for its commercialization.Index terms: Ethylene; longevity; pigments; enzyme activity. RESUMOAs flores de corte se deterioram muito rapidamente e necessitam de tecnologias pós-colheita para aumentar a durabilidade, que é normalmente em torno de 8 dias. Devido às escassas informações relacionadas à fisiologia pós-colheita de flores de Alstroeméria, a presente pesquisa teve como objetivo verificar qual a melhor dose de 1-metilciclopropeno (1-MCP) na conservação pós-colheita de inflorescências de Alstroemeria cv. Ajax, considerando os fatores associados à senescência floral e perda da vida decorativa. As hastes foram submetidas a quatro doses de 1-MCP (0; 100; 250; 500 ppb), posteriormente foram colocadas em recipientes com água destilada e armazenadas em temperatura de ambiente (22 ºC). Os tratamentos foram realizados em triplicata contendo três hastes por repetição. As avaliações foram realizadas a cada três dias perfazendo um total de 12 dias de armazenamento. Foi realizado um teste de F, e as médias comparadas pelo teste de Tukey (P≤0,05). Entre os tratamentos aplicados a dose de 500 ppb de 1-MCP reduziu a perda de água das hastes de alstroeméria durante o período de armazenamento, mantendo as pétalas túrgidas e os níveis de carotenoides e antocianinas altos, entretanto, isso não foi suficiente para manter a qualidade decorativa das flores, uma vez que o 1-MCP não resolveu os problemas de amarelecimento das folhas e abertura floral, que são importantes características para sua comercilização.Termos para indexação: Etileno; longevidade; pigmentos; atividade enzimática.

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Section: Resultsmentioning

confidence: 99%

Postharvest conservation of alstroemeria ‘ajax’ using 1-methylcyclopropene

et al. 2017

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“…On the sixth day an evolution to medium curvature (09/13) was already verified, and on the seventh day in the pot were already completely curved, requiring discarding. Pietro et al (2012) verified that roses cv. Veja kept in the treatment, only with distilled water presented an intense petal darkening, withering and a high Bent Neck rate in the majority of the evaluated stems.…”

Section: Resultsmentioning

confidence: 81%

“…In rose cv. Vega it was observed that the treatments with 8-hydroxyquinoline and citric acid (acid pH) were the most promising to keep the quality and prolong the flower's pot life, contributing to a low loss of fresh mass, low respiratory activity and relative water content; better maintenance of soluble and reducers carbohydrates, anthocyanin and coloring (Pietro et al 2012). Botrytis incidence.…”

Section: Resultsmentioning

confidence: 99%

Post-harvest preservation of roses cv. Ipanema

Oene¹,

Mattiuz²,

Brito³

et al. 2019

Commun. Plant Sci.

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Roses are highly perishable cut flowers that demand an adequate post-harvest management seeking the maintenance of quality and reduction of post-harvest losses. Among the most used manipulations, stand out the complete cold chain, as in the producer as in the transport and storage in Garden centers, supermarkets and flower shops, besides, it can be mentioned as the most important management the use of conserving solutions, which have been proving increasingly important for the maintenance of longevity and quality. The objective of this study was to evaluate three product lines offered by the Chrysal Premium Flower Care®, which has different functions and must be used in the three stages of the cut roses chain, post-harvest, transport/storage and final consumer. During the study was considered the real farm logistic, harvest, storage, transport, sale to wholesaler "and purchase by the final consumer, in a way to approximate the producer from the result of the study and show in a practical way the efficacy of the use of conserving solutions for the maintenance of cut roses. The experiment had five treatments with two replicates each, the evaluations were carried until the end of the flower's shelf life and consisted in: turgescence, bent neck, petals darkening, flower opening, fresh mass evaluation and water absorption. It is concluded that the operations of harvest and transport are of crucial importance in the maintenance of the longevity and quality of roses, however, it must be allied to an adequate post-harvest treatment, the investment takes the producer to opt to not use or use only one preservative. It was also concluded that the postharvest treatment is the most indicated increasing the pot life of the stems when compared to other treatments. Highlighted Conclusions1. Harvest and transport operations essential for maintenance of longevity and quality of roses. 2. Operations of harvest and transport of roses must be proceeded by an adequate postharvest treatment.

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“…It was also possible to observe that, during the storage, there was a decrease in the RWC as a natural process of loss of turgor of the cells due to the senescence (Table 2) PIETRO et al (2012), whose species of gerbera, orchid and rose, respectively, stored at 22ºC showed a decrease in the RWC during the storage.…”

Section: Resultsmentioning

confidence: 99%