CN-122004218-A - Healing promoting agent for melon vegetable grafted seedlings

Abstract

The invention discloses a healing promoting agent for melon vegetable grafted seedlings, which contains abscisic acid and ribulose phosphate. The healing promoting agent is sprayed before grafting, so that the effect of promoting the communication between phloem and xylem of the grafted seedling is achieved, the healing time of the grafted seedling of the melon vegetables is shortened, the operations of film uncovering and film covering in the healing period are reduced, the management in the healing period is simplified, and the healing cost is reduced.

Inventors

• LIANG HUAN
• ZHANG ZHAOYANG
• Dong Sifan
• GE MIHONG
• ZHU JUHONG
• WANG DEHUAN
• SUN XIAOMENG
• SHI XIANFENG
• HU JIANGYONG

Assignees

• 武汉市农业科学院

Dates

Publication Date

20260512

Application Date

20260116

Claims (5)

1. 1. The healing promoting agent for the grafted seedlings of the melons is characterized by containing abscisic acid and ribulose phosphate.
2. 2. The melon vegetable grafted seedling healing promoting agent according to claim 1, wherein the usage concentration of abscisic acid is 33-67 mg.L -1 , and the usage concentration of ribulose phosphate is 0.17-0.33 mM.
3. 3. The grafted seedling healing promoting agent according to claim 2, wherein the use concentration of abscisic acid is 50 mg.l -1 , and the use concentration of ribulose phosphate is 0.25 mM.
4. 4. Use of a healing promoting agent according to any one of claims 1 to 3 for promoting phloem and xylem communication of melon vegetable grafted seedlings.
5. 5. The use according to claim 4, wherein the healing agent is sprayed on the leaves of the stock one day before grafting.

Description

Healing promoting agent for melon vegetable grafted seedlings Technical Field The invention belongs to the technical field of vegetable seedling raising, and particularly relates to a melon vegetable grafted seedling healing promoting agent. Background Melon vegetables are main products of facility vegetables in China, are rich in a large amount of vitamins, have a certain regulation effect on blood pressure and blood sugar of human bodies, can maintain sources of vitamins and the like required by human health, and have higher economic value and nutritive value. Many years of planting often face continuous cropping obstacles, soil-borne diseases and other problems. The grafting and root replacement can obviously improve the resistance of plants to low temperature, salting, soil-borne diseases and continuous cropping obstacles, promote the absorption of moisture and mineral nutrients, and improve the yield and quality, and becomes a core link of intensive seedling culture. However, the management of grafting healing is a key link of grafted seedling production, whether grafted seedlings can heal timely and fully, and the later survival rate, the seedling reviving speed and the early yield are directly determined. Traditional healing management mainly relies on physical means such as airtight moisture preservation, temperature control and light control, and the like, and is complicated in process and high in energy consumption, and the healing period is often prolonged to more than 10 d in low-temperature weak light seasons, the bridge connection rate of the vascular bundles between the anvils/ears is low, physiological barriers such as later-stage cavities, faults and the like are very easy to occur, the management requirements are more strict, the labor cost is increased, the risk of rotten leaves is increased due to long healing period, the survival rate and the survival quality are reduced, and the bottleneck for restricting the mass production of high-quality seedlings is formed. Therefore, developing an exogenous healing promoting technology with simplicity, high efficiency and low cost has become a key problem to be broken through in industry. Disclosure of Invention In order to improve the grafting survival rate of the grafted seedlings of the melons, the invention provides a healing promoting agent for the grafted seedlings of the melons, which can enable the grafting survival rate of the grafted seedlings of the melons to reach more than 95%, simultaneously realize the rapid healing of the grafted seedlings of the melons, shorten the healing time and reduce the cost of the healing period. In order to achieve the above purpose, the present invention adopts the following technical scheme: A healing promoting agent for grafted seedlings of melons and vegetables contains abscisic acid and ribulose phosphate. Preferably, the use concentration of the abscisic acid is 33-67 mg.L -1, the use concentration of the ribulose phosphate is 0.17-0.33 mM, more preferably, the use concentration of the abscisic acid is 50 mg.L -1, and the use concentration of the ribulose phosphate is 0.25 mM. The healing promoting agent is applied to promoting the communication between the phloem of the melon vegetable grafted seedling and the xylem, namely, the root stock is grafted about 10 days after the root stock is arched, and the root stock leaves are sprayed with the healing promoting agent one day before grafting, so that the communication between the phloem of the melon grafted seedling and the xylem can be promoted, the rapid healing of the melon vegetable grafted seedling can be realized, the healing time is shortened, and the healing period cost is reduced. Drawings FIG. 1 shows the effect of exogenous abscisic acid at various concentrations on phloem/xylem reconnections of a watermelon grafted seedling. A. Phloem communication rate, B, xylem communication rate. FIG. 2 shows the effect of exogenous abscisic acid on phloem/xylem reconnection of a watermelon grafted seedling for different spray times. A. Phloem communication rate, B, xylem communication rate. FIG. 3 is a graph showing the effect of various concentrations of exogenous ribulose phosphate on phloem/xylem reconnection of a watermelon grafted seedling. A. Phloem communication rate, B, xylem communication rate. FIG. 4 shows the effect of varying proportions of exogenous abscisic acid and ribulose phosphate on phloem/xylem reconnection of grafted seedlings. A. Phloem communication rate, B, xylem communication rate. FIG. 5 shows the effect of exogenous abscisic acid and ribulose phosphate on the growth status of grafted seedlings. Detailed Description The variety of the watermelon scion to be tested is early good '84-24', and the variety of the pumpkin stock to be tested is 'De Li No. 2'. Seeds were coated with a bright seed and then directly sown in a plug filled with a mixed matrix of turf and perlite (3:1, v/v) with a matrix moisture of 20% and a sowing depth