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Method of propagating Petunia hybrida by layering

A petunia and layering technology, which is applied in the field of asexual reproduction of ornamental flowers and petunia layering propagation, can solve the problems of slow flowering time of large seedlings, high price, and long seedling breeding cycle, so as to speed up seedling breeding speed and reduce production costs , the effect of improving rooting efficiency

Inactive Publication Date: 2017-12-08
JIANGSU POLYTECHNIC COLLEGE OF AGRI & FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Purpose of the invention: In order to overcome the problems of the existing petunia seeds, which are expensive, have low germination rate, long seedling raising period, low survival rate of asexual reproduction, slow formation of large seedlings and long flowering time, etc., the purpose of the present invention is to provide a petunia layering propagation method , has the advantages of rapid seedling formation, early flowering, high survival rate, easy operation and low cost

Method used

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Embodiment 1

[0021] Embodiment 1: the layering method of petunia variety 'Dream'

[0022] (1) During the growing season, the temperature is 22°C, select the vigorously growing branches of petunia, and cut a wound of 3 cm in length and 1 mm in width longitudinally at the hard part of the base of the branch, and cut the epidermis to reveal the xylem.

[0023] (2) Then smear the wound with 100mg / L ABT rooting powder solution.

[0024] (3) Mix peat soil and garden soil according to the volume ratio of 1:1, then wrap the matrix around the branch wound with plastic film, and tie the plastic film tightly to form a spindle shape with a length of 12 cm and a maximum diameter of 5 cm in the middle.

[0025] (4) Keep the water content of the substrate at about 45% during the period, open the plastic film after 30 days, and the wrapped part of the branch can take root.

Embodiment 2

[0026] Embodiment 2: the layering method of petunia double-petaled variety 'lover'

[0027] (1) During the growing season, the temperature is 28°C, select the vigorously growing branches of petunia, and cut a wound about 4 cm in length and 2 mm in width longitudinally at the hard part of the base of the branch, and cut the epidermis to reveal the xylem.

[0028] (2) Then smear the wound with 60mg / L ABT rooting powder solution.

[0029] (3) Mix peat soil and garden soil according to the volume ratio of 1.5:1, then wrap the matrix around the branch wound with plastic film, and tie the plastic film tightly to form a spindle shape with a length of 13 cm and a maximum diameter of 5.5 cm in the middle.

[0030] (4) Maintain about 50% of the water content of the substrate during the period, open the plastic film after 27 days, and the wrapped part of the branch can take root, cut off the lower end of the root part and separate it from the parent, and plant it separately to obtain a n...

Embodiment 3

[0031] Embodiment 3: the layering method of petunia double petunia variety ' double waterfall '

[0032] (1) During the growing season, the temperature is 33°C, select petunia branches that grow robustly, and cut 2 wounds about 5 cm in length and 4 mm in width longitudinally at the hard part of the base of the branches, and cut the epidermis to reveal the xylem.

[0033] (2) Then smear the wound with 20mg / L ABT rooting powder solution.

[0034] (3) Mix peat soil and garden soil according to the volume ratio of 2:1, then wrap the matrix around the branch wound with plastic film, and tie the plastic film tightly to form a spindle shape with a length of 15 cm and a maximum diameter of 6 cm in the middle.

[0035] (4) Maintain about 60% of the water content of the substrate during the period. After 25 days, open the plastic film, and the wrapped part of the branch can take root.

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Abstract

The invention discloses a method of propagating Petunia hybrida by layering; the method comprises: vertically cutting a hard portion of a base of a branch of Petunia hybrida to obtain a wound, with epidermis cut through to expose xylem, applying a rooting agent to the wound, covering the wound with substrate until the covered portion roots, separating the lower end of the rooting portion of the branch from a parent body after rooting, and performing transplanting. The method has the advantages of high seedling growth speed, early flowering, high survival rate, good convenience of operation, and low cost.

Description

technical field [0001] The invention belongs to the technical field of horticultural plant breeding, and relates to a method for asexual propagation of ornamental flowers, in particular to a petunia layering propagation method. Background technique [0002] Petunia (Petunia hybrida Vilm.) is a plant of the genus Petunia in the Solanaceae family. It is an annual herbaceous flower and is known as "the king of flower beds in the world". Petunia flowers are huge, rich in color, and varied in flower type. At present, petunia has become the main potted flower and flower bed flower in the world, and is widely used in the beautification and greening of courtyards, open-air flower beds, and squares. [0003] Petunias are mostly propagated by seeds, but the tiny germination rate of the seeds is generally less than 60%, and most of them are expensive to import from abroad. Other double-petal varieties with high ornamental value, such as "Double Waterfall" and "Lover", have petalized pe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G1/00
CPCA01G22/00
Inventor 董慧刘艳张莹蔡善亚陈啸寅颜志明王全智贾思振史红林魏跃
Owner JIANGSU POLYTECHNIC COLLEGE OF AGRI & FORESTRY
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