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Cutting method of petunia hybrida vilm

A technology of petunias and cuttings, applied in the field of cultivation and propagation of horticultural plants, can solve the problems of small number of adventitious roots and low rooting rate, and achieve stable rooting effect, high rooting rate, and good rooting effect

Inactive Publication Date: 2016-06-29
JIANGSU POLYTECHNIC COLLEGE OF AGRI & FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Cutting is a kind of asexual reproduction technology, which can not only expand the population size but also maintain the genetic characteristics of the original species. For petunias, a simple, low-cost, and short production cycle cutting technology has been developed, which can increase the reproduction coefficient and reduce production costs. At present, in the cutting propagation of petunias, it is often necessary to use a variety of plant hormones to induce rooting, and the rooting rate is still low, and the number of adventitious roots is small.

Method used

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  • Cutting method of petunia hybrida vilm
  • Cutting method of petunia hybrida vilm

Examples

Experimental program
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Effect test

Embodiment 1

[0014] The cutting method of embodiment 1 petunias double petal variety 'lover's red'

[0015] (1) Cutting substrate preparation: Mix peat and river sand evenly at a mass ratio of 1:1, soak it with 30 times dilution of formaldehyde, cover the plastic film and expose it to sunlight for 5 days for disinfection and sterilization. Open the plastic film and place it for 7 days. be usable;

[0016] (2) Selection of cuttings: cut cuttings from branches that are strong and full but not soft, with dark green leaves on stems and no disease, the length is about 5 cm, the lower cut is cut at 1 mm below the stem node, and the lower leaves Keep the upper 2 leaves. Immerse the lower end of the cuttings in 30mg / L naphthaleneacetic acid solution for 5 minutes, take it out and wash off the residue of the medicine solution with water;

[0017] (3) The cutting depth is 1 / 3 of the length of the cuttings, the temperature is kept at 22°C, the light intensity is 2000 lux, and the substrate is often...

Embodiment 2

[0018] The cutting method of embodiment 2 petunias variety 'dream'

[0019] (1) Cutting substrate preparation: Mix peat and river sand evenly at a mass ratio of 1:3, soak it with 40 times dilution of formaldehyde, cover the plastic film and expose it to sunlight for 7 days for disinfection and sterilization. Open the plastic film and place it for 8 days. be usable;

[0020] (2) Cutting selection: Cut the cuttings on the branches that are strong and full but not soft, the leaves on the stem are dark green, and have no disease. The length is 7 cm. Upper 3 leaves. Immerse the lower end of the cuttings in 50mg / L naphthaleneacetic acid solution for 8 minutes, take it out and wash off the residue of the medicine solution with water;

[0021] (3) The depth of cuttings is 1 / 3 of the length of the cuttings, the temperature is kept at 28°C, the light intensity is 6000 lux, and the substrate is often sprayed with water to maintain a water content of 70%. After 30 days, roots can be tra...

Embodiment 3

[0022] The cutting method of embodiment 3 petunia varieties 'Mei Lin'

[0023] (1) Cutting substrate preparation: Mix peat and river sand evenly at a mass ratio of 1:4, soak it with 50 times dilution of formaldehyde, cover the plastic film and expose it to sunlight for 10 days for disinfection and sterilization, open the plastic film and place it for 10 days. be usable;

[0024] (2) Selection of cuttings: cut cuttings on branches that are strong and full but not soft, with dark green leaves on the stems and no disease. The length is about 10 cm. Keep the upper 4 leaves. Immerse the lower end of the cuttings in 70mg / L naphthaleneacetic acid solution for 10 minutes, take it out and wash off the residue of the medicine solution with water;

[0025] (3) The cutting depth is 1 / 2 of the length of the cuttings, the temperature is kept at 32°C, the light intensity is 10,000 lux, and the substrate is often sprayed with water to maintain a water content of 80%. After 30 days, roots ca...

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Abstract

The invention discloses a cutting method of petunia hybrida vilm. The method comprises the following steps of soaking the lower end of a cutting shoot in 30 to 70mg / L of naphthylacetic acid solution for certain time; taking the cutting shoot out and inserting the cutting shoot into a substrate for culture; after rootage, transplanting the cutting shoot. Naphthylacetic acid serves as an inductive rooting agent and can successfully induce the petunia hybrida vilm to root when the concentration of the naphthylacetic acid solution is proper and the time is proper, the rooting effect is stable, the rooting percentage of a plurality of petunia hybrida vilm varieties is high, a plurality of adventitious roots are formed, and another type of hormone is not required, so the cost is low; the substrate does not contain vermiculite, the rooting percentage is still kept at a relatively high level, the plurality of adventitious roots are formed, and the rooting effect is relatively good.

Description

technical field [0001] The invention relates to the cultivation and propagation of horticultural plants, in particular to a petunia cutting method. Background technique [0002] Petunia (Petunia hybrida Vilm.) is native to South America, is a plant of the family Solanaceae, and is an annual herbaceous flower. Petunia has huge flowers, bright colors and rich colors. At present, petunia has become the main potted flower and decorative plant in the world. It is widely used in the beautification and greening of courtyards, open-air flower beds and squares. s King". [0003] Petunias are usually propagated by seeds, and the seed germination rate is generally less than 60%. Most of them are expensive to import from abroad, especially some double-petal varieties with high ornamental value such as "Double Waterfall" and "Lover" are difficult to harvest seeds. . Cutting is a kind of asexual reproduction technology, which can not only expand the population size but also maintain th...

Claims

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Application Information

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IPC IPC(8): A01G1/00A01G9/10
CPCA01G9/0299A01G22/00A01G24/00
Inventor 魏跃嵇怡樊开青刘艳张莹史红林陈啸寅颜志明王全智贾思振董慧
Owner JIANGSU POLYTECHNIC COLLEGE OF AGRI & FORESTRY