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Method for promoting early flowering of Dendrobium nobile by combination of low temperature and plant growth regulator

A plant growth regulator and early flowering technology, applied in the fields of botanical equipment and methods, horticultural methods, horticulture, etc., can solve the problems affecting the quality and market competitiveness of potted flowers, irregular flowering, and few flowering nodes, etc. Effects of induction and normal opening, improved flower quality, easy operation

Active Publication Date: 2013-06-26
ENVIRONMENTAL HORTICULTURE RES INST OF GUANGDONG ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the pure alpine flower forcing technology is completely dependent on climatic conditions, which brings a series of unstable factors, such as yellow leaves, fallen leaves, abortion of flower buds, few flowering nodes, irregular flowering, etc., which seriously affect the quality of potted flowers. and market competitiveness

Method used

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  • Method for promoting early flowering of Dendrobium nobile by combination of low temperature and plant growth regulator
  • Method for promoting early flowering of Dendrobium nobile by combination of low temperature and plant growth regulator
  • Method for promoting early flowering of Dendrobium nobile by combination of low temperature and plant growth regulator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A kind of method that combines low temperature and plant growth regulator to promote spring Dendrobium to bloom in advance, comprising the following steps:

[0030] (1) Mature plants of Dendrobium dendrobium hybrid Den001 (purchased from the South China Botanical Garden of the Chinese Academy of Sciences, about 30 cm in height and about 2 years in growth period), after the pseudobulbs matured, they were placed in an alpine greenhouse for 45 days, and the greenhouse The day and night temperatures are 18.5-29.8°C and 7.0-17.3°C respectively. During the alpine greenhouse cultivation, spray 10mg / L thiadizuron solution on the stems of Dendrobium dendrobium every 10 days, the spraying amount is 5-15ml / plant, and use 500mg / L Huaduoduo flower-promoting fertilizer solution every half a month (N:P 2 o 5 :K 2 O=10:30:20) root irrigation, 200mg / LCa (NO 3 ) 2 solution or 125mg / L MgSO 4 The solution was sprayed on the leaves of Dendrobium officinalis. After the cultivation in ...

Embodiment 2

[0033] (1) Mature plants of Dendrobium hybrid Den2810 (Dendrobium Frigdaas Pink Star, sold by the Flower Research Institute of Guangdong Academy of Agricultural Sciences, plant height about 50 cm, growth period about 2 years), after the pseudobulb matures, its They were cultured in an alpine greenhouse for 45 days, and the day and night temperatures of the greenhouse were 18.5-29.8°C and 7.0-17.3°C, respectively. During alpine greenhouse cultivation, spray 10mg / L abscisic acid solution on the stems of Dendrobium dendrobium every 10 days, the spraying amount is 5-15ml / plant, and use 500mg / L Huaduoduo flower-promoting fertilizer solution every half a month ( N:P 2 o 5 :K 2 O=10:30:20) root irrigation, 200mg / L Ca(NO 3 ) 2 solution or 125mg / LMgSO 4 The solution was sprayed on the leaves of Dendrobium officinalis. After the cultivation in the alpine greenhouse, the spring dendrobium has grown flower buds.

[0034] (2) Move the spring Dendrobium to a flat greenhouse. The day ...

Embodiment 1-2

[0043] Effect of the method of embodiment 1-2 on flowering induction and normal flowering:

[0044] Compared with Control Example 1, the method of Example 1 had a very significant impact on the flowering of Dendrobium dendrobium hybrid Den001, and the flowering induction rate of plants, the normal flowering rate of nodes, the average number of flowers in plants and the average number of flowers in nodes increased by 47.8% respectively, 16.5%, 3.3 flowers and 0.6 flowers (see Table 1). The flowering time and full flowering time are about a week earlier, the flower diameter has not been significantly reduced, and there is no adverse effect on the quality. At the same time, the attached figure 1 It can be seen that in Example 1, there are few fallen leaves, and the flowers are opened neatly, and the ornamental value is higher.

[0045] The influence of the method of table 1 embodiment 1 on Den001 flowering

[0046]

[0047] Compared with Comparative Example 2, the method of ...

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Abstract

The invention discloses a method for promoting early flowering of Dendrobium nobile by combination of low temperature and plant growth regulators. The method comprises the following steps: culturing Dendrobium nobile for 45 days in an alpine greenhouse, keeping day and night temperatures in the alpine greenhouse at 18-31 DEG C and 7-18 DEG C, respectively, and spraying plant growth regulator solution to Dendrobium nobile stems every 10 days during the culture; after alpine greenhouse cultivation, transferring Dendrobium nobile to a greenhouse in a plain, keeping the day and night temperaturesat 25 DEG C and 20 DEG C, respectively, and culturing for 60-70 days till Dendrobium nobile plants flower. The method of the invention can promote flower bud induction and normal flowering for Dendrobium nobile, significantly increase normal flowering rate of plants, normal flowering rate of nodes and average number of flowers per node, thus greatly improving the viewing quality and commercial value of Dendrobium nobile. Compared with alpine flower induction method in prior arts, the method can achieve a better flower induction effect in the aspects of normal flowering rate, flower number perplant and the like, flower quality has been markedly improved, and no harm is caused by the use of plant growth regulators.

Description

technical field [0001] The invention belongs to the technical field of orchid florescence regulation, and specifically relates to a method for promoting early flowering of Dendrobium dendrobii, in particular to a method for promoting early flowering of Dendrobium spring in combination with low temperature and plant growth regulators. Background technique [0002] Flowering regulation refers to artificially controlling the flowering time of flowers. Most spring Dendrobium (Dendrobium Nobile) hybrids are not induced by high mountains, and usually open from March to May after the Spring Festival, just missing the peak season of orchid sales during Chinese New Year's Day and Spring Festival. [0003] In order to adapt to the festival and seasonality of flower consumption in our country, it is necessary to adjust the flowering period of Dendrobium dendrobium so that it will bloom earlier on New Year's Day or Spring Festival. The flower-promoting treatment of hybrid Dendrobium of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G1/00A01G7/06
Inventor 王再花操君喜朱根发
Owner ENVIRONMENTAL HORTICULTURE RES INST OF GUANGDONG ACADEMY OF AGRI SCI
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