Winter flowering phase regulation and control method for rhododendron hybridum
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A technology of flowering control and rhododendron, which is applied in the field of flowering control, can solve the problems of time-consuming, difficult to shorten the flowering cycle, and does not involve flower bud control technology, etc., to achieve the effect of dark green leaves
Inactive Publication Date: 2019-02-26
南京幸庄科技创新产业园管理有限公司
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In Li Xiaoyan's article "Regulation Experiment of Western Rhododendron Flowering Period", she only briefly introduced the influence of temperature, light and chemical "920" on flower promotion, but did not involve the regulation technology of flower bud formation, so a set of Western Rhododendron flowering regulation technology has not been formed.
In Chen Wenchao's article "Western Rhododendron Spring Festival Flowering Technique", the control process is to form flower buds first, then vernalization, and then promote flowering; each stage takes a long time, the process takes about 6 months, and it is difficult to achieve the purpose of shortening the flowering cycle
In Wei Jiankang's article "Research on the Regulation Technology of Rhododendron Flowering Period and the Physiology of Flowering Period", he only studied the effects of light, temperature and GA. 3 and other factors on the flowering of Western Rhododendron, but did not introduce how to regulate the formation of flower buds
In addition, none of the previous studies involved the technical methods on how to improve the flowering regularity and flower color of Western Rhododendron
Method used
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Embodiment 1
[0024] Embodiment 1: Carried out in a flower greenhouse in Liuzhou, Guangxi in 2015. Specific steps are as follows:
[0025] (1) Upper potting: Put the cutting seedlings of Rhododendron japonica into pots, and apply 0.3% compound fertilizer once a month after 1 month of upper potting, until the ground diameter of Rhododendron japonica reaches 1.0 cm, the height of seedlings is 25 cm, and the crown width reaches 25 cm, stop applying compound fertilizer Fertilizer; The substrate of upper pot is the discarded substrate that produces in eucalyptus or Chinese fir light substrate seedling raising process, and main component is by weight percentage, the chaff of 30 parts, the coir peat of 30 parts, the peat soil of 40 parts; Effectiveness of compound fertilizer N:P:K=20:12:20;
[0026] (2) Flower bud formation period:
[0027] ①On November 1, 2016, put 200 pots of Rhododendron "Guanzhongwang" in the greenhouse, control the temperature in the greenhouse at 15-17°C, the humidity at 7...
Embodiment 2
[0031] Embodiment 2: Carried out in a flower greenhouse in Liuzhou, Guangxi in 2015. Specific steps are as follows:
[0032] (1) Upper potting: Put the cutting seedlings of Rhododendron japonica into pots, and apply 0.3% compound fertilizer once a month after 1 month of upper potting, until the ground diameter of Rhododendron japonica reaches 1.0 cm, the height of seedlings is 25 cm, and the crown width reaches 25 cm, stop applying compound fertilizer Fertilizer; The substrate of upper pot is the discarded substrate that produces in eucalyptus or Chinese fir light substrate seedling raising process, and main component is by weight percentage, the chaff of 30 parts, the coir peat of 30 parts, the peat soil of 40 parts; Effectiveness of compound fertilizer N:P:K=20:12:20;
[0033] (2) Flower bud formation period:
[0034] ① On November 1, 2016, 200 pots of Rhododendron "Dutch Pink Queen" were placed in the greenhouse. The temperature of the greenhouse was controlled at 15-17°C...
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Abstract
The invention discloses a winter flowering phase regulation and control method for rhododendron hybridum. The method comprises the following steps of putting cutting seedlings of rhododendron hybriduminto pots, and applying compound fertilizer once every month after the seedlings are put into the pots; controlling the temperature of a greenhouse of rhododendron hybridum to be 15-17 DEG C and controlling the illumination time of natural light every day to be 1-2 h within 15-20 d, wherein a GA3 solution and a KH2PO4 solution are applied once separately every 10 d during the period; controllingthe temperature of the greenhouse of rhododendron hybridum to be 20-22 DEG C, and continuing to conduct red and blue light irradiation on rhododendron hybridum for 3-4 h 12 h after illumination of natural light every day within the period of 15-20 d, wherein a GA3 solution and a KH2PO4 solution are applied once separately every 10 d during the period; when each flower bud sends forth for 0.5 cm, conducting temperature-increasing flower acceleration at 24-25 DEG C, and continuing to conduct blue light irradiation on rhododendron hybridum for 3-4 h 12 h after illumination of natural light everyday within the period of 15-20 d. According to the method, rhododendron hybridum which is controllable in flowering time, shorter in flower acceleration time and neater and more gorgeous in floweringis obtained by adjusting factors like the temperature, the illumination time, the light quality and plant growth regulators.
Description
technical field [0001] The invention relates to the technical field of florescence regulation, in particular to a method for regulating the flowering stage of Rhododendron azalea in winter. technical background [0002] Western Rhododendron, belonging to Rhododendronaceae, is an evergreen shrub of Rhododendronaceae, which is bred by repeated hybridization between Chinese Rhododendron and European Rhododendron. Rhododendron azaleas are short and strong in plant shape, with large changes in flower shape and color, and rich colors. They are the most beautiful type of azaleas. [0003] The western rhododendron requires loose, air-permeable, acidic soil rich in humus, that is, the soil pH value is 5.5-6.5. The suitable temperature for the growth of Rhododendron is between 18-22°C, and when the temperature is too low or too high, the life activities of Rhododendron will gradually weaken, and the growth and development speed will be slow. In addition, the suitable light intensity...
Claims
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Application Information
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