Abstract

Gerbera represents one of the top five most important traditional cut flowers. A major factor influencing the success of the cut flower industry is vase life which in turn has a significant influence on consumer preference. Therefore, the present study considered the effect of silver nanoparticles (AgNPs) supplied in temporary immersion bioreactors (TIBs) on the growth and subsequent shelf life of gerbera flowers. The results showed an initial lag in the growth of plantlets produced from tissue culture, but this effect was reversed by the end of the study, particularly for plants exposed to AgNPs. Although AgNPs did not shorten the time to flowering (67 d in control plants compared with 73 d in AgNPs-treated plants), flower characteristics were not adversely affected by this delay. A significant finding from this study was the observation of improved vase life of flowers grown from plants treated with AgNPs (9.8 d) relative to control plants (8.2 d). This indicated the potential of AgNPs to sustain the longevity of cut flowers after harvest.

中文翻译：

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非洲菊在临时浸入式生物反应器中微繁殖后的体外再生植物的生长

摘要

非洲菊是五种最重要的传统切花之一。影响切花行业成功的一个主要因素是瓶插寿命，这反过来又对消费者的偏好产生重大影响。因此，本研究考虑了临时浸入式生物反应器（TIB）中提供的银纳米颗粒（AgNP）对非洲菊花的生长和随后的保质期的影响。结果显示，组织培养产生的幼苗的生长最初存在滞后，但这种效应在研究结束时被逆转，特别是对于暴露于 AgNP 的植物而言。尽管 AgNP 没有缩短开花时间（对照植物为 67 天，而 AgNP 处理植物为 73 天），但花特性并未受到这种延迟的不利影响。这项研究的一个重要发现是，与对照植物（8.2 天）相比，经 AgNP 处理的植物（9.8 天）生长的花朵的瓶插寿命有所延长。这表明纳米银颗粒在收获后维持切花寿命的潜力。