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Propagation of stewartia: past research endeavors and current status.

机译：Stewartia的传播：过去的研究工作和当前状态。

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摘要

Stewartias (Stewartia spp.) are prized for their camellia (Camellia japonica)-like flowers, intense fall color, and exfoliating bark. In spite of having outstanding ornamental value and features, these plants are not readily available for landscaping in the horticulture trade. The primary reason stated is the difficulty of its mass propagation and production. In the last two decades, considerable research has been conducted on various aspects of stewartia propagation such as seed germination, cutting type, light, rooting medium, rooting hormone, cold acclimation, and tissue culture. In this article, we discuss factors that directly influence propagation of stewartia and we highlight results of published studies to propagate stewartia. The evidence indicates success in adventitious rooting of cuttings but at the same time recognizes the continuing challenge associated with overwinter survival. Sexual propagation has also been studied, but its commercial application is limited. To date, there is lack of concrete information on why stewartia remains under-represented in our landscapes. It still remains unclear if it is the lack of consumer demand or existing propagation difficulties that is the cause of under utilization of stewartia. Given the information from most published studies, we suggest further research on the aspect of overwinter survival in addition to a survey of the nursery and greenhouse industry to accurately determine the cause behind the absence of stewartia in horticultural trade.
机译：Stewartias（ Stewartia spp。）因其山茶花（）花，浓烈的秋天色彩和树皮脱落而备受推崇。尽管具有出色的观赏价值和特色，但这些植物在园艺业中并不容易用于美化环境。陈述的主要原因是其大规模繁殖和生产的困难。在过去的二十年中，已经在甜菊繁殖的各个方面进行了大量研究，例如种子发芽，cutting插类型，光照，生根培养基，生根激素，冷驯化和组织培养。在本文中，我们讨论了直接影响甜味剂传播的因素，并重点介绍了已发表的研究来推广甜味剂的研究结果。证据表明，插条不定根生根成功，但同时也认识到越冬生存带来的持续挑战。还研究了性传播，但其商业应用受到限制。迄今为止，缺乏关于为什么在我们的景观中斯图里亚特的代表性仍然不足的具体信息。仍然缺乏消费者需求或现有的繁殖困难是导致对斯图氏菌利用不足的原因，目前尚不清楚。鉴于大多数已发表研究的信息，我们建议对苗圃和温室产业进行调查，以进一步了解越冬存活率方面，以准确确定园艺贸易中缺乏甜味素的原因。

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