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A kind of peony tissue culture container seedling technology

A tissue culture and container seedling technology, applied in the field of plant tissue culture, can solve the problems of death, easy death, waste of land resources, etc.

Active Publication Date: 2018-03-27
BEIJING FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main problems in peony tissue culture are: (1) It is difficult to sterilize the surface of explants (scale buds), and the highly toxic disinfectant mercuric chloride has to be used, and its residue will have an impact on the environment, operators and culture materials; (2) ) adventitious buds are easy to brown and even die on the medium;
Small plants (rooted test-tube plantlets) are prone to death during the transition from the laboratory environment to the field environment, resulting in peony tissue culture cannot be used for production
[0006] Peony sowing seedlings and seedling transplanting are severely restricted by the season, and must be carried out in autumn, otherwise the seeds will sleep in the soil and cannot germinate and grow, and the land resources will be wasted until the next spring; transplanting must be in autumn, otherwise most of the plants will die, which also limits Peony Industry Development

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Establishment of Aseptic Culture System of Peony

[0021] Peony 'Fengdan'(Paenoia ostti T.Hong et J.X.Zhang var.Lishizhenii B.A.Shenin Acta Phytota.Sin.1997,35(4):360-361),'Star'(Paenoia suffruticosa Andr.'Mingxing'),' For Wengonghong' (Paenoia suffruticosa Andr.'Wengonghong') etc., select robust plants, and collect healthy and plump scale buds free from diseases and insect pests as explants from October of that year to March of the next year, and dip them in baby bath soap with a soft brush Clean the surface, soak in an aqueous solution of chloro-m-xylenol (trade name: Dettol) (35-50ml per liter of chlorinated-m-xylenol) for 5-10min (during gentle shaking), rinse with running water for 20min, add 28 Mixture of % hydrogen peroxide and 70% ethanol (3:1, volume ratio), drop into Tween-80 (0.2ml per 50ml of mixture is 1 drop), sterilize for 8-15min, rinse with sterile water 3-4 times, 3 minutes each time. Put the scale buds on sterilized filter paper to drain the surface...

Embodiment 2

[0023] Tissue Culture Propagation of Peony Test-tube Seedlings (Adventitious Buds)

[0024] The preferred plants of peony 'Fengdan' (Paeonia ostii T.Hong et J.X.Zhang var.lishizheniiB.A.Shen) and 'Star' (Paenoia suffruticosa Andr.'Mingxing') were collected in January with healthy and full scale buds according to the implementation The method described in Example 1 establishes an aseptic culture system; axillary buds are cultivated in a tissue culture room on WPL value-added medium (medium formula and preparation method are the same), and the conditions of the tissue culture room are temperature 23-25 ​​° C, light 36 μmol / m 2 / s, the daylight rhythm is 16h / 8h (light / dark), and the air is ventilated by cellulose acetate membrane filtration. The cultures were grown under these conditions for 28 days, and each culture differentiated 2-5 adventitious buds. The theoretical reproductive quantity is calculated according to the formula y=x n (y is the reproduction quantity, x is the ...

Embodiment 3

[0027] Peony tissue culture container seedlings

[0028] Peony 'Fengdan' (Paenoia ostti T.Hong et J.X.Zhang var.LishizheniiB.A.Shen) obtained test-tube plantlets according to the above-mentioned embodiment one and two. The test-tube seedlings are cultivated into tissue culture container seedlings adapted to the field environment through the following three stages. (1) Container seedling culture, test-tube seedlings take root to form container seedlings through the following cultivation process: rooting mixed substrate [charcoal (particle size ≤ 5mm) or perlite and peat (2:1, v:v), activated carbon 1g / L] Put into a black polyethylene nutrition bowl (3-4.5cm×3-4.5cm, diameter×height), put the nutrition bowl into a transparent tissue culture bottle (about 7.5cm×10cm, diameter×height); add rooting culture solution into the culture bottle 40ml [each liter contains 1 / 3-1 / 2WPL inorganic substances, indole butyric acid 1-3mg, and the rest is water]; high-temperature sterilization (te...

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Abstract

The invention belongs to the field of tissue culture of plants, and particularly relates to a peony tissue culture container seedling method. The method comprises the following steps: collecting healthy and full bulbil without pests or diseases as explants from robust mother plants of Paeonia ostii, Mingxing and other peony varieties, performing surface sterilization with an environment-friendly explant surface sterilization method, and inoculating the explant onto a specially prepared poeny culture medium to establish a sterile culture system; performing subculture multiplication of test-tube plantlets on the multiplication medium with a subculture period of 28-35 days; performing induced rooting of the test-tube plantlets on a nutrition bowl medium in a culture bottle to form plantlet container seedlings; and performing environment adaptability acclimatization to form tissue culture container seedlings which are suitable for natural environment and can be repotted, transplanted and taken out of flower bed for application anytime and anywhere. The method has the main characteristics of the environment-friendly poeny explant surface sterilization method, a basis medium for tissue culture of peony, and a tissue culture medium and a culture method of peony container seedlings, which are key technology for factory-like breeding of high quality seedlings of peony.

Description

technical field [0001] The invention belongs to the field of plant tissue culture, and relates to a tissue culture propagation method of peony. Specifically, the present invention relates to a method of collecting healthy and plump scale buds free from diseases and insect pests from a vigorously growing peony mother plant as an explant, and establishing an aseptic culture system with an environmentally friendly surface disinfection method; in a WPL value-added medium Expansion of test-tube plantlets (adventitious buds) on the top; in the nutrient pot rooting matrix in the tissue culture bottle, the test-tube plantlets are induced to take root to form tissue culture container plantlets, and through the process of environmental adaptation (transition and hardening), the tissue culture container plantlets are adapted The plant tissue culture room (referred to as "tissue culture room", the same below) is conditionally domesticated into container seedlings adapted to the natural co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01H4/00
CPCA01H4/00A01H4/001A01H4/008
Inventor 王华芳霍瑾茹张倩卜祥潘邓舒雨修宇唐文思王蒙蒙
Owner BEIJING FORESTRY UNIVERSITY
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