Method for controlling plant type of Chinese cymbidium through paclobutrazol

Abstract

The invention discloses application of paclobutrazol to controlling the plant type of Chinese cymbidium or preparing preparations for controlling the plant type of Chinese cymbidium, and the optimal method for controlling the plant type of Chinese cymbidium through paclobutrazol is explored and optimized, that is, paclobutrazol is sprayed to leaves of Chinese cymbidium in a leaf spraying mode so that the surfaces of the processed leaves can be wet. Preferably, when plants grow to 5-15 cm, 1000-1500 mg / L paclobutrazol is used for processing, the plants are processed every 10-20 days, and processing is conducted for three to four times. The method greatly improves the function of paclobutrazol on Chinese cymbidium, can remarkably reduce the plant height of Chinese cymbidium, and guarantees that the width of plant leaves is not affected, the plant type is more compact, the processed plant type of Chinese cymbidium is more attractive, and the method can be applied to cultivation and production on a large scale.

Description

technical field

[0001] The invention belongs to the technical field of flower cultivation. More specifically, it relates to a method for regulating the plant type of Chinese orchids by using paclobutrazol. Background technique

[0002] Cymbidium Sw. is some ornamental orchids unique to my country in the genus Orchid, and is one of the top ten traditional famous flowers in my country. In recent years, it has also been welcomed by western developed countries. Therefore, the market conditions for vigorously developing my country's national orchid industry have matured. Small miniature potted plants have been widely concerned and loved by the people.

[0003] Although my country's national orchid species are rich and diverse, most of the traditional national orchid species have large plant types, especially the leaves are too long, too soft, the plant type is scattered, and their resistance is low, which affects their ornamental value. Therefore, it is necessary to properly ...

Examples

Embodiment 1

[0054] The dwarfing research of embodiment 1 plant growth retardant to Molan

[0055] 1. Test material

[0056] Two varieties of Cymbidium sinense (Andr.) Willd. from China, Qihei and Wuzicui.

[0057] 15% paclobutrazol (PP333) powder produced by Sichuan Guoguang Agrochemical Co., Ltd., and two plant growth retardants imported from Japan, chlormequat (CCC).

[0058] This experiment was carried out at the Guolan Research Center of South China Normal University. 4 to 7 mother plants were planted in each pot in a 3.5-inch plastic flower pot, and the fermented peanut shells mixed with stones were used as the substrate for cultivation.

[0059] 2. Experimental design

[0060] (1) The experiment adopts an orthogonal design experiment method to determine the optimal dose, growth period, application frequency and application time interval of the delay agent applied to Molan. Two kinds of growth retardants all establish four factors, are respectively growth retardant concentration, ...

Embodiment 2

[0086] Example 2 Paclobutrazol dwarfing Molan scheme optimization

[0087] 1. Experimental materials and methods are the same as in Example 1.

[0088] 2. Analysis of optimal conditions affecting morphological indicators: the judging basis is to reduce plant height, maximize leaf length and minimize leaf expansion.

[0089] (1) Analysis of the optimal conditions for treating Molanqihei with paclobutrazol

[0090] The highest plant height is 25.56cm in PS1 group, and the lowest is 17.96cm in PL1 group. From the analysis of variance in Table 5, it can be seen that the application concentration of the retarder paclobutrazol is different from the other three factors, indicating that the application concentration plays a decisive role in plant growth. In the intuitive analysis of Table 6, the concentration of 1500mg / L can reduce the plant height most effectively. The three factors of treatment time, treatment frequency and treatment interval had little effect on the results, and...

Embodiment 3

[0126] The research of embodiment 3 plant growth retardants to Jianlan growth

[0127] 1. Experimental materials

[0128] The golden rainbow in Cymbidium ensifolium (L.) Sw., Lanjianlan, China was used as the test material. Plant 4 to 7 mother plants in each pot in a 3.5-inch plastic flowerpot, and culture them with stones mixed with fermented peanut shells.

[0129] Plant growth retardant selects two kinds for use, the 15% paclobutrazol (PP 333 ) powder, the 50% butylhydrazide (B9) powder produced by Sichuan Guoguang Agrochemical Co., Ltd.

[0130] 2. Experimental design

[0131] (1) The design of paclobutrazol is shown in Table 10, and three different concentrations of diethylhydrazine are set (as shown in Table 11).

[0132] Based on the results of previous orthogonal experiments, the optimal treatment time, number of treatments and treatment intervals have been screened. However, multiple treatments with higher concentrations will inhibit the growth of the orchid, aff...

technical field

[0001] The invention belongs to the technical field of flower cultivation. More specifically, it relates to a method for regulating the plant type of Chinese orchids by using paclobutrazol. Background technique

[0002] Cymbidium Sw. is some ornamental orchids unique to my country in the genus Orchid, and is one of the top ten traditional famous flowers in my country. In recent years, it has also been welcomed by western developed countries. Therefore, the market conditions for vigorously developing my country's national orchid industry have matured. Small miniature potted plants have been widely concerned and loved by the people.

[0003] Although my country's national orchid species are rich and diverse, most of the traditional national orchid species have large plant types, especially the leaves are too long, too soft, the plant type is scattered, and their resistance is low, which affects their ornamental value. Therefore, it is necessary to properly ...

Examples

Embodiment 1

[0054] The dwarfing research of embodiment 1 plant growth retardant to Molan

[0055] 1. Test material

[0056] Two varieties of Cymbidium sinense (Andr.) Willd. from China, Qihei and Wuzicui.

[0057] 15% paclobutrazol (PP333) powder produced by Sichuan Guoguang Agrochemical Co., Ltd., and two plant growth retardants imported from Japan, chlormequat (CCC).

[0058] This experiment was carried out at the Guolan Research Center of South China Normal University. 4 to 7 mother plants were planted in each pot in a 3.5-inch plastic flower pot, and the fermented peanut shells mixed with stones were used as the substrate for cultivation.

[0059] 2. Experimental design

[0060] (1) The experiment adopts an orthogonal design experiment method to determine the optimal dose, growth period, application frequency and application time interval of the delay agent applied to Molan. Two kinds of growth retardants all establish four factors, are respectively growth retardant concentration, ...

Embodiment 2

[0086] Example 2 Paclobutrazol dwarfing Molan scheme optimization

[0087] 1. Experimental materials and methods are the same as in Example 1.

[0088] 2. Analysis of optimal conditions affecting morphological indicators: the judging basis is to reduce plant height, maximize leaf length and minimize leaf expansion.

[0089] (1) Analysis of the optimal conditions for treating Molanqihei with paclobutrazol

[0090] The highest plant height is 25.56cm in PS1 group, and the lowest is 17.96cm in PL1 group. From the analysis of variance in Table 5, it can be seen that the application concentration of the retarder paclobutrazol is different from the other three factors, indicating that the application concentration plays a decisive role in plant growth. In the intuitive analysis of Table 6, the concentration of 1500mg / L can reduce the plant height most effectively. The three factors of treatment time, treatment frequency and treatment interval had little effect on the results, and...

Embodiment 3

[0126] The research of embodiment 3 plant growth retardants to Jianlan growth

[0127] 1. Experimental materials

[0128] The golden rainbow in Cymbidium ensifolium (L.) Sw., Lanjianlan, China was used as the test material. Plant 4 to 7 mother plants in each pot in a 3.5-inch plastic flowerpot, and culture them with stones mixed with fermented peanut shells.

[0129] Plant growth retardant selects two kinds for use, the 15% paclobutrazol (PP 333 ) powder, the 50% butylhydrazide (B9) powder produced by Sichuan Guoguang Agrochemical Co., Ltd.

[0130] 2. Experimental design

[0131] (1) The design of paclobutrazol is shown in Table 10, and three different concentrations of diethylhydrazine are set (as shown in Table 11).

[0132] Based on the results of previous orthogonal experiments, the optimal treatment time, number of treatments and treatment intervals have been screened. However, multiple treatments with higher concentrations will inhibit the growth of the orchid, aff...

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