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Cutting propagation method of eustoma grandiflorum

A technology of cutting propagation and eustoma, applied in the field of plant reproduction, can solve the problems of eustoma susceptible to leaf and root diseases, long period of eustoma seed seedlings, difficult to form commercial seedlings, etc. The effect of short breeding period and cutting propagation period and shortening the seedling period

Inactive Publication Date: 2014-03-05
FLOWER RES INST OF YUNNAN ACAD OF AGRI SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the problems of long seedling breeding cycle and low production efficiency of Eustoma eustoma, and to solve the problems that Eustoma is easily infected with leaf and root diseases, low rooting rate and difficult to form commercial species according to conventional cutting propagation. To solve the technical problems of seedlings, provide a cutting propagation method suitable for large-scale rapid propagation and production of eustoma

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1 The inventive method

[0026] The cutting propagation method of eustoma comprises the following steps:

[0027] (1) Eustoma eustoma substrate cultivation and cultivation of female plants:

[0028] ①In the female parent cultivation greenhouse, the seedlings of the eustoma cultivar Holy Sword with purple border on white background were planted in a substrate mixed with crushed ceramsite and peat at a volume ratio of 3:1. The greenhouse was equipped with a blackout system, 30 % shading rate sunshade system and insect net. Control the length of sunshine per day not to exceed 13 hours. Take 25°C as the best control target during the day, keep the temperature in the greenhouse between 20°C and 30°C, set the target at 16°C at night, and keep the temperature between 14°C and 18°C; the relative humidity of the air during the day is between 50% and 75 %, and the relative humidity of the air at night is between 70% and 85%. Carry out drip irrigation and fertilizat...

Embodiment 2

[0033] Embodiment 2 The inventive method

[0034] Embodiment 2 is the same as Embodiment 1 except that the following measures are different, and will not be repeated here.

[0035] Eustoma soil cultivation and cultivation of female parent:

[0036] In the female parent cultivation greenhouse, a 100cm wide and 20cm high moisture surface was sorted out, and the seedlings of the eustoma variety Holy Sword with purple edges on a white background were planted in soil with an organic matter content of more than 4%, water drainage, and good air permeability. The nutrient requirements of eustoma soil cultivation should be cultivated by mulching with plastic film combined with drip irrigation under the film. Its effect is shown in Table 1.

Embodiment 3

[0037] Embodiment 3 The inventive method

[0038] Embodiment 3 is different from the following measures, and the rest of the operation measures are the same as in Embodiment 1, and will not be repeated here.

[0039] It is also possible to pick the heart for the second time after the 6-leaf one-heart stage of the female plant as described in step (1) ②, when the new first-level side buds grow to 4-leaf one-heart, so as to delay the bud picking time and increase the number of buds picked , when the third-level side buds grown on the second-level side buds grow to 8 leaves, use a sterilized knife to intercept cuttings containing 4-6 leaves, and keep 1-2 pairs of leaves at the base of the female side buds after cutting the cuttings. Its effect is shown in Table 1.

[0040] Control: adopt conventional plant cutting propagation method to cut Lisianthus eustoma, the main steps are: manage in the greenhouse according to the temperature and humidity change conditions produced by natu...

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Abstract

The invention discloses a cutting propagation method of eustoma grandiflorum. The cutting propagation method includes: day temperature of a female parent cultivation greenhouse is kept at 20-30 DEG C, night temperature is kept at 13-18 DEG C, relative air humidity during the day is kept to be 50-75%, and relative air humidity during the night is kept to be 70-85%; and sunshine time in a year is less than 13 hours. When a lateral bud of a female parent plant has eight leaves and one heart, a bigslip is cut out, cutting is performed on the bigslip after the bigslip is dipped in rooting powder, shading coefficient of an outer shading net of a cutting greenhouse is 30%, inner relative air humidity is kept to be 80-95% through high pressure mist, temperature is at 20-25 DEG C, CO2 concentration in the cutting greenhouse is kept to be 600-800ppm through CO2 fertilization, and a cutting seedling is transplanted to a flower cutting production greenhouse after the cutting seedling takes root. The cutting propagation method of eustoma grandiflorum reduces root disease rate and leaf disease rate substantially, shortens seed breeding stage, and promotes the eustoma grandiflorum pigslip to take root. Rooting time of eustoma grandiflorum is 23-25 days, rooting rate of eustoma grandiflorum is above 92%, and planting percent of eustoma grandiflorum is above 87%. The cutting propagation method of eustoma grandiflorum is suitable for commercial and large-scale propagation of eustoma grandiflorum.

Description

technical field [0001] The invention relates to a method for realizing cutting propagation of eustoma by optimizing ecological factors, and belongs to the technical field of plant propagation. Background technique [0002] Eustoma grandiflorum (Eustoma grandiflorum) also known as prairie gentian, Texas bluebell. Eustoma is an ornamental plant of the Gentianaceae Eustoma genus native to the United States. It is mainly used as cut flowers. Eustoma is beautiful and elegant in shape, fresh and beautiful, and has a long shelf life. It has the reputation of "thornless rose". Eustoma is the fastest-growing category of fresh cut flowers in the world in the past two decades, ranking fifth among the bulk fresh cut flowers in Japan and Yunnan Province in China in terms of sales. In recent years, the application of eustoma in potted plants and flower beds has also increased significantly. [0003] At present, the production of eustoma in the world adopts seed propagation, and most of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G31/00
Inventor 李金泽刘关所杨春梅汪国鲜王继华吴丽芳单芹丽阮继伟许凤
Owner FLOWER RES INST OF YUNNAN ACAD OF AGRI SCI
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