A growth promoter for promoting flowering and fruit setting in honey plum and its preparation and application method.

Abstract

A growth promoter for promoting flowering and fruit setting in plum trees is disclosed, comprising the following components in parts by weight: 2.95-3.15 parts of uniconazole; 1.9-2.1 parts of methylphenidate; 2.95-3.15 parts of calcium cyclohexane; 4.75-5.25 parts of amino acids; 0.95-1.05 parts of zinc; 0.199-0.21 parts of selenium; 0.57-0.63 parts of molybdenum; and 1.9-2.1 parts of boron. A method for preparing the growth promoter for promoting flowering and fruit setting in plum trees is also disclosed, namely, first dissolving the amino acids in 19-21 parts of water, and then dissolving uniconazole, methylphenidate, calcium cyclohexane, zinc, selenium, molybdenum, and boron in water to prepare a mother solution. Another method for applying a growth regulator that promotes flowering and fruit setting in plum trees involves diluting the mother solution 50-300 times when the plum buds reach 5-10cm in height, and then spraying the solution evenly on both sides of the plum tree leaves. This invention effectively inhibits excessive shoot growth, promotes flower bud differentiation, increases plum yield and fruit quality, and promotes the maturation of branches and buds at low concentrations of active ingredients.

Description

Technical Field

[0001] This invention relates to the field of pesticide technology, and in particular to a growth promoter that can promote flowering and fruit setting in honey plums and its preparation and application method. Background Technology

[0002] The flesh of the Honey Plum is golden yellow, with a crisp, sweet, and juicy taste, reminiscent of honey, hence its name. However, while the fruit is delicious, the tree is difficult to cultivate. The Honey Plum's fruit is delicious, but its yield is low. This is because during the flower bud differentiation period, it fails to stimulate the development of sufficient and high-quality flower buds, resulting in a low fruit set rate and consequently, low yield. Honey Plums have vigorous growth but do not readily flower. Growth vigor is closely related to the quantity and quality of flower buds formed on the tree, and the quantity and quality of flower buds directly affect the yield and fruit quality of the Honey Plum. Therefore, in production, various measures are often used to control excessive branch growth, thereby reducing nutrient consumption, promoting branch maturation, and improving flower bud differentiation.

[0003] To address this technical issue, the commonly used methods for controlling excessive growth in production mainly involve manual methods such as branch bending and shoot twisting, which are labor-intensive and time-consuming. Chemical control of excessive growth currently involves using paclobutrazol or paclobutrazol-containing substances to control the vigorous growth of trees. However, paclobutrazol has a long residual time in the soil, with a residual effect lasting more than two years. If the dosage is not properly controlled or if used continuously for many years, it can easily cause damage to the tree, such as drooping branches, leaf curling, decreased quality, premature aging, and weakened tree vigor, resulting in significant side effects. Furthermore, paclobutrazol has now been removed from the pesticide standards permitted for use in green food production (NY / T 393-2020) and is no longer allowed.

[0004] Cyclohexanetrione calcium is a novel cyclohexanetrione plant growth regulator that effectively inhibits internode growth, shortens stem length, and promotes thicker stems. It is an ideal plant growth retardant with extremely low residues. Currently, it is primarily used in field crops, with few reports on its application in fruit trees. Summary of the Invention

[0005] The purpose of this invention is to provide a growth regulator that promotes flowering and fruit setting in plum trees, and also to provide a method for formulating and applying this growth regulator. This invention achieves the goal of controlling excessive growth and promoting flowering by spraying chemical reagents such as acetamiprid, methylphenidate, and calcium cyclamate, along with foliar fertilizers containing amino acids, zinc, selenium, molybdenum, and boron.

[0006] This invention discloses a growth promoter for promoting flowering and fruit setting in honey plums. The growth promoter comprises the following components in parts by weight: 2.95-3.15 parts of uniconazole; 1.9-2.1 parts of methylphenidate; 2.95-3.15 parts of calcium cyclohexane; 4.75-5.25 parts of amino acids; 0.95-1.05 parts of zinc; 0.199-0.21 parts of selenium; 0.57-0.63 parts of molybdenum; and 1.9-2.1 parts of boron.

[0007] Preferably, the promoter comprises the following components in parts by weight: 3 parts of tebuconazole; 2 parts of methylphenidate; 3 parts of calcium cyclohexane; 5 parts of amino acids; 1 part of zinc; 0.2 parts of selenium; 0.6 parts of molybdenum; and 2 parts of boron.

[0008] The present invention describes a method for preparing a growth promoter that can promote flowering and fruit setting in honey plum: first, dissolve amino acids in 19-21 parts of water, and then dissolve tebuconazole, methylphenidate, calcium cyclohexane, zinc, selenium, molybdenum and boron in water to prepare a mother solution.

[0009] The present invention describes a method for preparing a growth promoter that can promote flowering and fruit setting in honey plum: first, dissolve amino acids in 20 parts of water, and then dissolve tebuconazole, methylphenidate, calcium cyclohexane, zinc, selenium, molybdenum and boron in water to prepare a mother solution.

[0010] The present invention describes a method for applying a growth promoter that can promote flowering and fruit setting in honey plum: when the honey plum buds grow to 5-10cm, dilute the mother solution 50-300 times and then spray it evenly on both sides of the honey plum leaves.

[0011] Preferably, spray 2-4 times, with an interval of 10-15 days between each application.

[0012] The sources and effects of the raw materials used in this invention are as follows:

[0013] Amino acids, calcium cyclohexane, tebuconazole, methylphenidate, zinc, selenium, boron, and molybdenum are all purchased externally.

[0014] Uniconazole: It can control vegetative growth, inhibit cell elongation, shorten internodes, dwarf plants, promote lateral bud growth and flower bud formation, promote flower bud differentiation and more flowers, promote reproductive growth of plants, increase root quantity and vitality, increase fruit weight and quality, and has no residue and is non-carcinogenic.

[0015] Mepiquat chloride: It has good systemic activity in plants, promoting reproductive growth; inhibiting excessive stem and leaf growth, controlling lateral branches, shaping ideal plant form, increasing root quantity and vitality, and increasing fruit weight and quality. It can be absorbed by roots, tender branches, and leaves, and is quickly transported to other parts without residue or carcinogenicity.

[0016] Calcium cyclamate: It can inhibit excessive plant growth, promote root development, thicken stems, shorten internodes, enhance lodging resistance, increase chlorophyll content, enhance photosynthesis, promote flower bud differentiation, improve fruit setting rate, promote fruit enlargement, increase sweetness and coloring, increase dry matter content and storage resistance, increase yield, improve quality, prevent premature aging, regulate endogenous hormones in plants, enhance stress resistance and disease resistance, and has a certain control effect on fire blight of fruit tree shoots; at the same time, it has the characteristics of high activity and very short half-life. In soil rich in microorganisms, the half-life does not exceed 24 hours, and the final metabolites are carbon dioxide and water, which is a low-toxicity and residue-free green product;

[0017] Amino acids: small molecule water-soluble fertilizers that can be directly absorbed by leaves. They are the basic substances that make up the proteins needed for plant nutrition and serve as raw materials for the synthesis of nutrients in plants.

[0018] Boron: can promote the transport of carbohydrates in plants, enhance disease resistance, promote flower bud differentiation and pollen tube elongation, and improve fertility.

[0019] Zinc is a component of some dehydrogenases, carbonic anhydrases, and phospholipases, which play important roles in the hydrolysis, redox processes, and protein synthesis of substances in plants; it participates in the synthesis of indoleacetic acid, a growth potential; it is an essential component for stabilizing cell ribosomes; and it participates in chlorophyll formation.

[0020] Selenium plays a vital role in nitrogen metabolism in crops. It not only promotes the absorption of phosphorus and the conversion of inorganic phosphorus to organic phosphorus, but also affects the production, transport and conversion of vitamin C, carbohydrates and proteins in crops. It is rich in SOD (superoxide dismutase), which is a beneficial element that can delay plant cell aging and improve plant immunity.

[0021] Molybdenum: It can increase protein content and improve quality. Although the amount used is extremely small, molybdenum deficiency can easily lead to a decline in crop quality. It plays a vital role in nitrogen metabolism in crops. It not only promotes the absorption of phosphorus and the conversion of inorganic phosphorus to organic phosphorus, but also affects the production, transport, and conversion of vitamin C, carbohydrates, and proteins in crops.

[0022] Most trace elements such as boron, molybdenum, zinc, and selenium are not present in soil, so they must be supplemented artificially. The required amount is not large, so adding them to growth promoters and spraying them together can achieve the purpose of reasonable and rapid supplementation and reduce waste.

[0023] The beneficial effects of this invention are that the agent of this invention can promote flowering and fruit setting in honey plum, effectively prevent excessive growth of new shoots, promote flower bud differentiation in honey plum, and improve the yield and fruit quality of honey plum. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will now be described in further detail with reference to the examples.

[0025] Example 1:

[0026] A growth promoter that can promote flowering and fruit setting in honey plums was prepared as a stock solution with water. The stock solution was divided into 6 experimental groups and a water control group according to different dilution levels (50 times, 100 times, 150 times, 200 times, 250 times, and 300 times).

[0027] At the Mingyouli Company's base in Wuli, Dushan County, Guizhou Province, five-year-old honey plum trees were selected as the experimental variety. From mid-April to mid-June 2020 and from mid-April to mid-June 2021, when the honey plum buds grew to 5-10cm, the pesticide was applied by spraying.

[0028] During the vigorous growth period of new shoots in the honey plum, spray the above solution evenly on the new shoots and both sides of the leaves, covering the entire tree. Spray each tree 2-4 times, until the leaves are thoroughly wet, with an interval of 10-15 days between each application. Choose to spray in the morning, evening, or on a windless, cloudy day, avoiding the hottest part of the day.

[0029] The seven test groups are the different dilution groups of the promoter and control agent of the present invention (50 times, 100 times, 150 times, 200 times, 250 times, and 300 times) and the water group.

[0030] Each plant was considered a plot, and seven treatments were administered using different dilutions of the mother plant solution. Branch growth, chlorophyll content, leaf photosynthetic indicators, and fruit quality were assessed in each group. Results are shown in Tables 1 and 2.

[0031] Table 1. Effects of different dilution ratios on branch growth and chlorophyll content.

[0032]

[0033] Table 2. Effects of different dilution ratios on fruit quality indicators

[0034]

[0035] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A method for promoting flowering and fruit setting in honey plum, characterized in that, When the buds of the honey plum grow to 5-10cm, dilute the mother solution 50-300 times and spray it evenly on both sides of the honey plum leaves. Spray 2-4 times, with an interval of 10-15 days between each spray. The mother solution is prepared by dissolving 4.75-5.25 parts by weight of amino acids in 19-21 parts by weight of water, and then adding 2.95-3.15 parts by weight of tebuconazole, 1.9-2.1 parts by weight of methylphenidate, 2.95-3.15 parts by weight of calcium cyclohexane, 0.95-1.05 parts by weight of zinc, 0.199-0.21 parts by weight of selenium, 0.57-0.63 parts by weight of molybdenum and 1.9-2.1 parts by weight of boron.

2. The method for promoting flowering and fruit setting in honey plum according to claim 1, characterized in that: The mother solution contains the following components in parts by weight: 3 parts of tebuconazole; 2 parts of methylphenidate; 3 parts of calcium cyclohexane; 5 parts of amino acids; 1 part of zinc; 0.2 parts of selenium; 0.6 parts of molybdenum; and 2 parts of boron.

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