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首页> 外文学位 >Effects of photoperiod and temperature on growth and flowering of six orchid hybrids.
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Effects of photoperiod and temperature on growth and flowering of six orchid hybrids.

机译：光周期和温度对六个兰花杂种的生长和开花的影响。

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摘要

Orchids are currently the second most valuable flowering potted floriculture crop in the United States. However, the commercial potential of the vast majority of orchids has not been explored primarily due to insufficient knowledge of how to regulate growth and flowering. A series of experiments was performed to determine the effects of photoperiod and temperature on growth and flowering of six orchid hybrids. Brassia Rex 'Sakata', Degarmoara Winter Wonderland 'White Fairy', Miltassia Charles M. Fitch 'Dark Monarch', and Odontocidium Tiger Crow 'Golden Girl' did not flower in response to a range of photoperiods (10 to 24 hours) or cool temperature (8 to 23°C) treatments. In Miltoniopsis Augres 'Trinity', flowering percentage was greatest (≥90%) and was most rapid when plants were exposed to 9-h photoperiods for 4 to 8 weeks at 20°C and then vernalized under short days at 14°C for 8 to 12 weeks. Similarly, flowering of Zygopetalum Redvale 'Fire Kiss' was promoted most when exposed to short days at 23°C for eight weeks followed by eight weeks of vernalization at 11 to 14°C. Additional studies were performed to quantify the effects of temperature on pseudobulb development, time to flowering, and flower longevity. Thermal time models were developed for these processes and are presented.
机译：兰花目前是美国第二大最有价值的开花盆栽花卉作物。然而，主要由于对如何调节生长和开花的了解不足，尚未开发出绝大多数兰花的商业潜力。进行了一系列实验，以确定光周期和温度对六个兰花杂种的生长和开花的影响。 Brassia Rex'Sakata'，Degarmoara冬季仙境'White Fairy'，Miltassia Charles M. Fitch'Dark Monarch'和Odontocidium Tiger Crow'Golden Girl'并未对一系列光周期（10至24小时）或凉爽的花朵开花温度（8至23°C）处理。在Miltoniopsis Augres'Trinity'中，当植物在20°C下暴露于9h光周期4至8周，然后在14°C下于短日内进行8春化处理时，开花率最高（≥90％）并且最快。到12周。同样，当在23°C下短日暴露8周，然后在11-14°C下进行8周春化时，Zygopetalum Redvale'Fire Kiss'的开花被促进最多。进行了其他研究，以量化温度对假鳞茎发育，开花时间和花寿命的影响。针对这些过程开发了热时间模型，并进行了介绍。

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