CN-121986663-A - Culture method for improving growth rate of plant of genus herba Euphorbiae Humifusae of family Crassulaceae

Abstract

The invention relates to the technical field of gardening cultivation, in particular to a cultivation method for improving the growth rate of a succulent plant of the genus Tilia of the family Crassulaceae. The method comprises the steps of selecting plants of the genus Kalanchoe of the family Crassulaceae with developed root systems as stocks, naturally airing at 20-25 ℃ and humidity of 70-80% for 3-6 days to form incision wood plug sealing layers after cutting, selecting plant of the genus Kalanchoe with hypocotyl as scion, inserting the scion into the incision of the stocks to fix by a split grafting method, and then performing healing culture in a short-day weak-light environment with sunshine duration of 3-5 hours and light intensity of 5000-7000lx. The invention thoroughly breaks the technical bottleneck that the growth of the blister fleshy is very slow by the precise synergy of the powerful nutrient pumping, the specific air-drying corrosion prevention and the weak light transpiration inhibition of the heterogeneous stock, effectively avoids the grafting black rot, shortens the cultivation period from years to 1 year, and has great large-scale production value.

Inventors

• KANG ZHIWEI
• Wen Lezhang
• Wen Ruolan
• ZUO NING

Assignees

• 青岛熙峰园艺有限公司

Dates

Publication Date

20260508

Application Date

20260402

Claims (9)

1. 1. A culture method for improving the growth rate of a succulent plant of the genus glaucescent fissistigma of the family sedoidae, characterized by comprising the following steps: A. Selecting a stock, namely selecting a Gastrodia Gaertn succulent plant of Cryptographic genus of Crassulaceae family as the stock; B. Stock pretreatment, namely cutting off the upper part of a stock main rod, reserving the bottom and the epicotyl, and naturally airing the stock with the notch for 3-6 days under the conditions that the temperature is 20-25 ℃ and the humidity is 70-80%; C. scion preparation, namely selecting a succulent plant of the genus herba euphorbiae of the family Crassulaceae for plant division, and obtaining a plant division with hypocotyls as scion materials; D. grafting, namely inserting the hypocotyl of the scion material into the incision of the stock by adopting a split grafting method and fixing to form a grafting body; E. And (3) healing culture, namely transferring the grafting body into a short-day and weak-light environment with the sunshine duration of 3-5h and the illumination intensity of 5000-7000lx for healing culture.
2. 2. The method according to claim 1, wherein in step A, the height of the stem of the selected succulent plant stock of the genus Kalanchoe of the family Crassulaceae is between 12 and 15cm, and the thickness of the stem is between 1.5 and 2.5 cm.
3. 3. The method of claim 1, wherein in step B, the upper part of the stock trunk is cut off to ensure a round cut, and the distance from the upper hypocotyl of the reserved trunk to the bottom is 3-5cm.
4. 4. The method according to claim 1, wherein in the step C, the plant age of the selected succulent plant of the genus Chaptera of the family Crassulaceae is 3-5 years, the scion material after the division requires that the individual plant has 2-5 leaves, and the length of the hypocotyl is 0.5-1.0cm.
5. 5. The method of claim 1, wherein in the step D, grafting is performed by cutting an opening with the length of 1-1.5cm at the middle part of the upper hypocotyl of the stock, and inserting the hypocotyl of the scion material into the opening of the stock.
6. 6. The method of claim 1 or 5, wherein in step D, after the scion material is inserted into the stock, the binding site is fixed by using a binding belt, so that the scion material and the binding site are tightly attached.
7. 7. The method according to claim 1, wherein the grafting operation in step D is carried out at a temperature of 20-25 ℃ and an illumination intensity of 100-200 lx.
8. 8. The method according to claim 1, wherein in step E, the temperature of the healing culture is 20-25℃and the humidity is 70-80%.
9. 9. The method according to claim 1, wherein the plant belonging to genus herba Euphorbiae of family Crassulaceae is a water-soaked succulent plant gardening variety, specifically comprising at least one of Zhu Ziyu, hammer pig liver, delphinium, verruca green, seal, juicy peach, red egg, pink egg, preserved egg, horse egg, green pig treasures, red pig treasures, giant pig treasures, cat ear seal, kylin jade, long Yi, brillouin, violet, colored glaze or ruby.

Description

Culture method for improving growth rate of plant of genus herba Euphorbiae Humifusae of family Crassulaceae Technical Field The invention relates to the technical field of gardening cultivation, in particular to a cultivation method for improving the growth rate of a succulent plant of the genus Tilia of the family Crassulaceae. Background The plant of the genus herba Euphorbiae Humifusae of the family Crassulaceae, commonly called as "bubble" type succulent (such as Zhu Ziyu, seal, etc.), has extremely high ornamental value due to the hypertrophic leaves and the surface covered with unique transparent window points or raised bubble-shaped structures, and is deeply favored by succulent plant lovers. However, the plants have significant biological defects in the natural growth state, namely extremely slow growth rate and low propagation coefficient of the separated plants, and the time from seedling cultivation to adult plant cultivation is often several years or even ten years. In addition, because the leaf water content is extremely high and the epidermis cuticle is special, the traditional cutting propagation mode is extremely easy to cause incision infection black rot or scion dehydration shrinkage, and the survival rate is low. Therefore, development of a culture method capable of remarkably shortening the growth cycle and improving the reproduction efficiency has become a technical problem to be solved in the field. Grafting technology is used as a mature plant asexual propagation means and is often used for promoting scion growth by utilizing strong root system advantages of the stock. In the prior art, a plurality of patents relate to plant grafting and environment regulation, but a special grafting culture scheme aiming at the characteristics of 'water bubbles' of the genus glaucescent chapter is insufficient: Chinese patent application CN108243753A, publication time 2018, 07, 06, discloses a grafting method of succulent plants. The proposal mainly adopts the cactaceae plant (such as a measuring ruler) as a stock, and leaves or twigs of other varieties (such as white peony, yellow beautiful and the like) of the Crassulaceae are selected as scions for split grafting. The method improves the propagation speed of common succulent plants, but the combination of the stock and the scion mainly aims at common succulent plants, does not relate to the glaucescent water bubble varieties, and the healing period management focuses on the conventional temperature and humidity control, the illumination condition is set to 8-12 hours per day and the intensity is 800-1400lx, and the environment with long sunlight and low light intensity is extremely easy to cause water unbalance for the water bubble scions with high water content and easy transpiration, so that grafting failure or growth limitation is caused. Chinese patent application CN114946433A, published as 2022, 08 and 30 days, discloses a grafting cultivation method of lotus palm succulent plants. The proposal solves the problems that the lotus palms plague brocade variety cannot independently photosynthesis and grow slowly by selecting the non-plague brocade variety of the same genus as the stock. The method has the technical key points that the sterilization treatment of the stock incision and short-term standby (1-5 days of growth) are not mentioned, the long-time special environment air drying process required by the high-water-content plants is not mentioned, meanwhile, the scheme does not limit the illumination duration and intensity of the healing period finely, and the short-day weak light regulation strategy for inhibiting the excessive transpiration of scions is lacking, so that the method is difficult to be directly applied to the plants of the genus glaucescent in the slower metabolism. Chinese patent application CN116098064A, published as 2023, 05 month and 12 days, discloses a method for plant tissue culture and rooting culture (note: this is broadly referred to as tissue culture or rapid propagation patent, specifically based on the retrieved related illumination control literature). Such techniques typically rely on a climatic chamber for long periods (12-16 hours/day) of light induction, with the intensity of light being set at around 2000lx or higher, in order to maximize photosynthetic efficiency to promote cell division. However, this "long sun, constant light intensity" pattern based on tissue culture or ordinary cuttings is not suitable for the specific physiological needs of the early stages of graft healing. Especially for the scion of the genus glaucescent fissistigma, the air holes are opened and the moisture transpiration is accelerated by the overlong illumination time before the vascular bundles are not completely communicated, so that the scion dies due to dehydration before the moisture supply of the stock is obtained. In summary, although the prior art discloses various plant grafting and culturing methods, the following obvi