Effect of thidiazuron on morphological and flowering characteristics of Dendrobium 'Sunya Sunshine' potted plants
文献类型： 外文期刊
作者： Zhang, Dongxue 1 ; Liao, Yi 1 ; Lu, Shunjiao 1 ; Li, Chonghui 1 ; Shen, Zhen 1 ; Yang, Guangsui 1 ; Yin, Junmei 1 ;
作者机构： 1.CATAS, Trop Crops Genet Resources Inst, Danzhou City, Hainan, Peoples R China
2.Heilongjiang Bayi Agr Univ, Coll Agron, Daqing, Heilongjiang, Peoples R China
3.Minist Agr, Key Lab Crop Gene Resources & Germplasm Enhanceme, Danzhou City, Hainan, Peoples R China
4.Engn Technol Res Ctr Trop Ornamental Plant Germpl, Danzhou City, Hainan, Peoples R China
关键词： Orchid; dendrobium; TDZ; floral bud formation; early flowering
期刊名称：NEW ZEALAND JOURNAL OF CROP AND HORTICULTURAL SCIENCE （ 影响因子：1.154； 五年影响因子：1.424 ）
ISSN： 0114-0671
年卷期： 2019 年 47 卷 3 期
页码：
收录情况： SCI
摘要： Dendrobium is a kind of popular orchid with long display life of flowers. Since it has a long vegetative period to flowering, it is necessary to develop methods to promote flowering. The effects of thidiazuron (TDZ) on flowering and the morphological characteristics of the Dendrobium 'Sunya Sunshine' were investigated. One-year-old and uniform height potted plants were used. Plants were spayed and root irrigated with the same amount of TDZ solution in different concentration treatments. The results showed that TDZ promoted the emergence of new shoots, but it did not affect plant morphology, such as the stem height, stem diameter, leaf size. TDZ application of 30 mg center dot L-1 increased the floral bud formation rate to 87.1%, increased inflorescence number and stalk thickness, but it also decreased the flower number per inflorescence and flower size, and shortened the flowering duration. This study indicated that TDZ could promote flowering, and the optimum concentration of the TDZ solution was 30 mg center dot L-1.
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