Postharvest physiology of cut flowers
Postharvest physiology of cut flowers
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DOI：
10.1590/2447-536x.v27i3.2372
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发表时间：
2021-09-01
影响因子：
--
通讯作者：
Finger, Fernando Luiz
中科院分区：
文献类型：
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作者：
da Costa, Lucas Cavalcante;de Araujo, Fernanda Ferreira;Finger, Fernando Luiz
切花的寿命是有限的，他们短暂的性质和多重压力。水分吸收减少，碳水化合物储存减少，呼吸活动和乙烯产生增加是花衰老的标志。有多种技术可用于延长花卉的保存，包括使用花卉防腐剂溶液、乙烯作用抑制剂、生长调节剂以及控制温度和花卉脱水。在脉冲溶液中或作为瓶插溶液的组分使用蔗糖，通过改善水平衡和能量或通过减少乙烯生物合成延迟衰老来延长花的瓶插寿命。乙烯产生和作用的抑制剂通过延长一些乙烯敏感花的瓶插寿命来影响寿命。花有强烈的呼吸活动，这可能会耗尽组织中有限的碳水化合物储备。较低的温度显著降低二氧化碳浓度和乙烯产量及其作用。然而，对低温敏感的花，如天堂鸟、蝎尾蕉、兰花和生姜，由于组织变色的强烈发展，不能储存在10至13摄氏度以下。
The longevity of cut flowers is limited by their ephemeral nature and by multiple stresses. Impairment in water uptake, depletion of stored carbohydrates, increases in both respiratory activity and ethylene production are signatures of flower senescence. A wide range of techniques is available to extend flower preservation, including the use of flower preservative solutions, ethylene action inhibitors, growth regulators, and control of temperature and flower dehydration. The use of sucrose in pulsing solution, or as a component of vase solution, extends the vase life of flowers by either improving water balance and energy or delaying the senescence via reductions in ethylene biosynthesis. Inhibitors of ethylene production and action affect the longevity by extending the vase life of some ethylene-sensitive flowers. Flowers have intense respiratory activity, which may deplete the limited reserves of carbohydrates in the tissues. Lower temperatures markedly reduce both carbon dioxide concentration and ethylene production as well as its action. However, chilling-sensitive flowers, such as bird-of-paradise, heliconia, orchid, and ginger, cannot be stored below 10 to 13 degrees C due to the intense development of tissue discoloration.