Method for accelerating the advancing blossom of big-bract shell dendrobe by utilizing plant growth regulator

A plant growth regulator, the technology of Dendrobium sclerotii, applied in the field of biological science and plant physiology, can solve the problems of multiple plant growth regulators synergistically stimulating flowering, transforming flower buds into tall buds, and aborting flower buds, so as to promote early The effects of formation and normal opening, prolongation of the average flowering period of plants, and improvement of quality

Inactive Publication Date: 2007-07-18
广东省农业科学院花卉研究所
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Problems solved by technology

However, most of the florescence regulation adopts the treatment of a single plant growth regulator, which often causes abnormal phenomena such as flower bud abortion and deformed development. For example, 6-benzylpurine treatment of Dendrobium must rely on low temperature, otherwise the induced flower buds will easily transform into hypertrophic plants. A large number of abortions may occur in buds (Shao Limei, Meng Zixiong, Application Handbook of Plant Growth Regulators, Jindun Publishing House, 1999, p73)
In addition, there are no reports of multiple plant growth regulators acting synergistically to stimulate flowering

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  • Method for accelerating the advancing blossom of big-bract shell dendrobe by utilizing plant growth regulator

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Embodiment 1～4

[0027] Dendrobium spp., with a plant height of about 40 cm, is a deciduous mature plant that has grown for about 2 years.

[0028] The scheme of embodiment 1~4 is as shown in table 1. Wherein, step (1) pretreatment in embodiment 1~3, gibberellin concentration is 25 mg / liter. Example 4 pretreatment, the concentration of gibberellin is 50 mg / liter, and the stem is sprayed, and the spraying amount of each plant is 10 milliliters / plant. After 7 days of pretreatment, step (2) in the embodiment 1~4 carries out stem spraying with the mixed solution of paclobutrazol and thiadiuron, and every plant spraying amount is 10 milliliters / plant, and treatment concentration is respectively 25+25, 100+100, 400+400, 500+500, the data before and after "+" respectively represent the concentration of paclobutrazol and thiadizuron in the mixed solution. After 14 days of step (2) spraying, step (3) repeats step (2) again, carries out stem spraying with the mixed solution of paclobutrazol and thiadi...

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Abstract

A method for promoting the bigbract Herb dendrobin to flower earlier by using plant growth regulator includes such steps as inducing (floral induction and flower bud breeding) to the bigbract Herb dendrobin in greenhouse, spraying the low-concentration solution of gibberellin onto its stem after its pseudobulb is ripe, spraying the mixed solution of paclobutrazol and thidiazuron onto its stem after 7 days, and spraying said mixed solution after 14 days.

Description

technical field [0001] The invention relates to the field of biological science plant physiology, in particular to a method for promoting early flowering of Dendrobium macule by using a plant growth regulator. Background technique [0002] Flowering regulation refers to the method of artificially controlling the flowering time of flowers. Dendrobium wardianum Warner is an epiphyte, with erect or drooping stems, elongated, with thick nodes, 1-1.5 cm in diameter. Leaves oblong, withered, 8-14 cm long, 1.5-3.5 cm wide, thinly leathery, apex acute. The inflorescence is born on the upper node of the leafless stem, relatively short, with 1-3 flowers; flower diameter 7.5-8.5 cm; sepals and petals white with purple apex, lip yellowish yellow, base with 2 millet spots Block, apex purple; sepals nearly oblong, 4.5 cm long, 2 cm wide; calyx sac nearly spherical, 5 mm long; petals elliptic, 4.5 cm long, 2.5-3 cm wide; lips broadly ovate, 4 cm long cm, 3 cm wide, densely pubescent on ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G7/06A01G1/00
Inventor 王再花王碧青朱根发廖飞雄
Owner 广东省农业科学院花卉研究所
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