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Dendrobium officinale protocorm culture medium and application thereof

A technology of Dendrobium officinale and culture medium, which is applied in the field of proliferation and differentiation culture medium of Dendrobium officinale protocorm, can solve the problems of poor sunlight adaptability, uneven distribution, low reproduction coefficient, etc. The effect of uniform and increased multiplication coefficient

Inactive Publication Date: 2019-01-15
NANJING LONGYUAN ECOLOGICAL AGRI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional asexual reproduction method has a low reproduction coefficient. The cultivation of protocorms goes through three stages of induction, differentiation and multiplication. The quality of protocorm cultivation directly affects the thickness of stem segments, rooting rate and seedling rate of Dendrobium officinale
[0003] The cultivation of protocorms requires a common fixed medium, which will cause damage to the stem when taking the stem, and the seedlings will be unevenly distributed after absorbing the nutrient solution; the liquid medium will cause hypoxia; in addition, the common round After bulb proliferation and differentiation, seedlings usually have poor stress resistance after transplanting, and poor sunlight adaptability, that is, strong sunlight is easy to cause burns, and less sunlight is easy to breed fungi

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0109] A protocorm culture medium of Dendrobium officinale, including induction medium, proliferation and differentiation medium;

[0110] The induction medium is composed of the following components: MS basic medium, 6-benzylaminoadenine 1.6 mg / L, naphthaleneacetic acid 0.8mg / L, PQQ 1.5umol / L, plant extract mixture 28mg / L, sucrose 120 mg / L, medium functional solution 8mg / L;

[0111] The proliferation and differentiation medium consists of the following components: 1 / 2 MS basic medium, 6-benzylaminoadenine 2.5mg / L, naphthaleneacetic acid 0.6 mg / L, PQQ 0.5umol / L, plant extract mixture 16 mg / L L, sucrose 40 mg / L, vitamin B2 0.2 mg / L; medium functional solution 5 mg / L;

[0112] Among them, the plant extract is composed of mulberry leaf extract, Scutellaria baicalensis extract and tannin; the mulberry leaf powder processed from the 1st to 3rd new leaves on the mulberry branches of the mulberry leaf extract is used as raw material, dried in the shade, pulverized, Alcohol, 90% et...

Embodiment 2

[0118] A kind of dendrobium officinale protocorm culture medium, is characterized in that: comprise induction medium, proliferation and differentiation medium;

[0119] The induction medium is composed of the following components: MS basic medium, 6-benzylaminoadenine 2.5mg / L, naphthaleneacetic acid 0.6 mg / L, PQQ 0.5 umol / L, plant extract mixture 16mg / L, sucrose 80mg / L L, medium functional solution 5 mg / L;

[0120] The proliferation and differentiation medium consists of the following components: 1 / 2 MS basic medium, 6-benzylaminoadenine 1.6 mg / L, naphthaleneacetic acid 0.8mg / L, PQQ 1.5umol / L, plant extract mixture 28mg / L , sucrose 60 mg / L, vitamin B2 0.3mg / L; medium functional solution 8mg / L;

[0121] Among them, the plant extract is composed of mulberry leaf extract, Scutellaria baicalensis extract and tannin; the mulberry leaf powder processed from the 1st to 3rd new leaves on the mulberry branches of the mulberry leaf extract is used as raw material, dried in the shade, p...

Embodiment 3

[0127] A protocorm culture medium of Dendrobium officinale, including induction medium, proliferation and differentiation medium;

[0128] The induction medium is composed of the following components: MS basic medium, naphthaleneacetic acid 0.7mg / L, PQQ 0.8umol / L, plant extract mixture 23mg / L, sucrose 110 mg / L, medium functional liquid 6mg / L ;

[0129] The proliferation and differentiation medium consists of the following components: 1 / 2 MS basic medium, 6-benzylaminoadenine 1.8mg / L, naphthaleneacetic acid 0.7mg / L, PQQ 0.7umol / L, plant extract mixture 22mg / L , sucrose 50 mg / L, vitamin B2 0.25 mg / L; medium functional solution 6 mg / L;

[0130] Among them, the plant extract is composed of mulberry leaf extract, Scutellaria baicalensis extract and tannin; the mulberry leaf powder processed from the 1st to 3rd new leaves on the mulberry branches of the mulberry leaf extract is used as raw material, dried in the shade, pulverized, Alcohol, 90% ethanol and water heating extraction,...

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PUM

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Abstract

The invention discloses a dendrobium officinale protocorm culture medium including an induction culture medium and a proliferation and differentiation culture medium. The induction culture medium is composed of the following components: a MS basic culture medium, 1.6-2.5 mg / L of 6-benzylaminopurine, 0.6-0.8 mg / L of naphthaleneacetic acid, 0.5-1.5 [mu]mol / L of PQQ, 16-28 mg / L of a plant extract mixture, 80-120 mg / L of sucrose, and 5-8 mg / L of a culture medium functional solution. The proliferation and differentiation culture medium is composed of the following components: a 1 / 2 MS basic culturemedium, 1.6-2.5 mg / L of 6-benzylaminopurine, 0.6-0.8 mg / L of naphthaleneacetic acid, 0.5-1.5 [mu]mol / L of PQQ, 16-28 mg / L of a plant extract mixture, 40-60 mg / L of sucrose, 0.2-0.3 mg / L of vitamin B2, and 5-8 mg / L of a culture medium functional liquid. The plant extract mixture in the culture medium provided by the invention includes a mulberry leaf extract, a radix scutellariae extract and tannin and a specific proportion, can adapt to the illumination intensity in the proliferation and differentiation period, thereby having the advantages of high seedling formation rate and strong sunlightadaptability after formed seedlings are transplanted, and completely adapting to the illumination intensity of dog days of summer in Nanjing areas without causing burns and other phenomena.

Description

technical field [0001] The invention belongs to the field of dendrobium cultivation, and in particular relates to a proliferation and differentiation medium for dendrobium candidum protocorms and an application thereof. Background technique [0002] Dendrobium officinale (Deudrobium officiuale) is a perennial epiphytic herb of the genus Dendrobium orchidaceae. Qi, long muscles, intelligence and shock, light body and prolong life"; folks call it "life-saving celestial grass". Most of them are distributed on the semi-shady rocks in the mountains with an altitude of nearly 1,000 meters. In addition to long-term excavation, the resources of wild Dendrobium officinale are gradually depleted. Because the seeds have no endosperm and need to be combined with symbiotic bacteria to germinate normally, the cultivation of seedlings is difficult. The traditional asexual reproduction method has a low reproduction coefficient. The cultivation of protocorms goes through three stages of in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H4/00
CPCA01H4/001A01H4/008
Inventor 邵丽丽
Owner NANJING LONGYUAN ECOLOGICAL AGRI CO LTD