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Effects of Calcium, 6-Benzyladenine and Paclobutrazol on Inflorescence Quality of Oncidium

文献类型： 外文期刊

作者： Liu, Xiaorong 1 ; Liao, Feixiong 1 ; Xu, Yechun 1 ; Wang, Biqing 1 ;

作者机构： 1.Guangdong Acad Agr Sci, Floricultural Res Inst, Guangzhou 510640, Peoples R China

关键词： orchid;plant growth regulator;cut flower

期刊名称：XXVIII INTERNATIONAL HORTICULTURAL CONGRESS ON SCIENCE AND HORTICULTURE FOR PEOPLE (IHC2010): INTERNATIONAL SYMPOSIUM ON ADVANCES IN ORNAMENTALS, LANDSCAPE AND URBAN HORTICULTURE

ISSN： 0567-7572

年卷期： 2012 年 937 卷

页码：

收录情况： SCI

摘要： Experiments were conducted in 2007 and 2008 to determine the effect of calcium (Ca), or Ca in combination with 6-benzyladenine (6-BA) or paclobutrazol (PP333) on plant growth, flowering, and inflorescence quality of Oncidium 'Goldiana x Onc. Guiena Gold'. Treatments comprised: 300 mg/L Ca, 300 mg/L Ca + 50 mg/L 6-BA, 300 mg/L Ca + 100 mg/L 6-BA, 300 mg/L Ca + 100 mg/L PP333, and 300 mg/L Ca + 500 mg/L PP333. The experiments were arranged in a random block design consisting of 15 pots with flower buds about 1-5 cm in length per treatment. Days of budding stage, initial flowering and peak flowering were recorded. The variables were measured at peak flowering time: diameter of basal peduncle, peduncle length, inflorescence length, number of branches and florets. All the treatments promoted the flowering compared to the control, especially 300 mg/L Ca + 100 mg/L PP333 and 300 mg/L Ca + 500 mg/L PP333, These treatments advanced days of budding stage, initial and peak flowering in 6.2 d, 6.5 d, 15.0 d and 6.7 d, 6.6 d, 15.2 d, respectively. As far as inflorescence quality index were concerned, the effect of 300 mg/L Ca + 100 mg/L PP333 was better than 300 mg/LCa + 500 mg/L PP333. Thus our experiments suggest that 300 mg/L Ca + 100 mg/L PP333 was the best to improve Oncidium inflorescence quality.

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