9 results about "Excessive growth" patented technology

The invention relates to the technical field of agricultural intelligent monitoring and regulation and control, and discloses a rice three-dimensional seedling raising seedling growth monitoring, diagnosis and regulation and control method, which comprises the following steps: S1, when any hanging basket reaches a target position, reducing the movement speed of the hanging basket, and obtaining a serial number image of the hanging basket; s2, when the hanging baskets stop moving, sequentially acquiring images right above and obliquely above all seedling trays in the hanging baskets corresponding to the serial number images of the hanging baskets; s3, respectively obtaining the areas of a green plant area, a yellow plant area, a black soil area and a seedling block area in the images right above and obliquely above the seedling tray, calculating the pixel number of each area, and obtaining the pixel ratio of different areas; and S4, acquiring the coverage rate, health index and spindling index of each seedling tray according to the ratio of pixels in different areas, dividing the seedlings in the seedling trays into five types of normal, spindling, vertical withering, insufficient fertilizer and strong, obtaining a growth vigor diagnosis result of the seedlings in the seedling trays, and generating a seedling growth vigor regulation and control prescription according to the growth vigor diagnosis result.

This invention belongs to the field of ecological regulation technology of river aquatic plants. Specifically, it discloses a method for preventing the excessive growth of invasive submerged plants in rivers. By accurately calculating the water flow velocity threshold for controlling the excessive growth of submerged plants, and using a combination of upstream reservoir outflow and downstream reservoir water level fluctuations for joint regulation, the aim of preventing the excessive growth of submerged plants in the river section can be achieved.

This invention discloses a composition and application method for shortening the seedling stage of grapes, relating to the field of grape cultivation technology. The composition comprises ten components, including 45-52 mg / kg of uniconazole and 1.8-2.2 mg / kg of thidiazuron. The plant-derived compound amino acids are a combination of soybean protein and corn germ enzymatically hydrolyzed small-molecule amino acids with a molecular weight <1000 Da. The preparation method involves pre-dissolving uniconazole and methyl jasmonate in 95% ethanol, then mixing them sequentially with the other components and adjusting the volume. Application is based on the timing of application, spraying 2-3 times at 30±5 day intervals when the lignification rate of the 3-5 nodes at the base of the new shoot reaches 60%-70% or the GA3 / ZT ratio is 3.0-4.0. Through the synergistic effect of its components, this invention can shorten the seedling stage of grapes to less than 3 years, achieving a fruiting rate of ≥80% in 2-year-old plants. It allows for precise control of excessive growth and promotes flowering, is safe and environmentally friendly, simple to operate, and low in cost, effectively solving the problem of long grape breeding cycles. It is suitable for the breeding of new grape varieties and the innovation of germplasm resources.

This invention belongs to the field of microbial technology, specifically relating to a strain CNOCC V. coerulea-13 and its applications. The present invention isolates and screens CNOCC V. coerulea-13, with the accession number GDMCC No:67765. When this strain is inoculated into pre-cultured orchid tissue culture seedlings or explants for symbiotic culture, under completely hormone-free conditions, the tissue culture seedlings maintain normal growth and stable biomass accumulation, significantly improving the survival rate of tissue culture seedlings of various orchid species. This effectively solves the problem of easy death of tissue culture seedlings in hormone-free culture and effectively avoids the side effects such as deformity and excessive growth that may be caused by the use of traditional hormones. This invention is simple to operate and low in cost. The resulting seedlings have a physiological balance and root development closer to the natural state, laying a good foundation for their subsequent transplanting and adaptation to the natural environment.

This invention discloses chiral gold nanoflowers, their preparation method, and applications. The method includes the following steps: S1, preparing a growth solution; adding deionized water, chloroauric acid aqueous solution, and ascorbic acid aqueous solution to a hexadecyltrimethylammonium bromide aqueous solution and mixing to obtain a growth solution; S2, introducing chiral molecules; injecting chiral molecules L-cysteine ​​or D-cysteine ​​into the growth solution and mixing to obtain a chiral induced growth system; S3, seed-induced growth; adding a gold nanorod solution to the chiral induced growth system and mixing; allowing the reaction to stand, and growing to obtain crude chiral gold nanoflowers. The preparation method uses gold nanorods as seed crystals, and the excessive growth of gold nanoflowers is induced in situ by chiral cysteine ​​molecules. The reaction conditions are mild, the operation is simple and easy to control, the product exhibits significant chiral characteristics, and high reproducibility. Chiral gold nanostructures can expand applications in catalysis, biosensing, chiral recognition, optical devices, and other fields, showing good application prospects and practical application value.

This invention relates to the field of crop cultivation and discloses a method for strengthening seedlings of Solanaceae crops and the application of furazolidone. The method involves preparing an aqueous solution of furazolidone at a concentration of 3 mg / L to 6 mg / L, and spraying it onto the surface of the seedling trays after sowing but before emergence, until the trays are moist. Alternatively, it can be sprayed onto the seedlings when the cotyledons have expanded, until the leaves are moist. This invention allows for earlier application of the seedling-strengthening spray, prior to emergence after sowing, without inhibiting normal seed germination, avoiding excessive growth during the cotyledon stage, and especially inhibiting excessive elongation of the hypocotyls and epicotyls. It achieves a seedling-strengthening effect that other techniques cannot achieve. The method is simple to operate, uses readily available raw materials, requires minimal dosage, has low cost, is safe for seedlings, shortens the seedling period, eliminates the need for hardening-off, and saves labor, water, and fertilizer.

The invention relates to the technical field of agricultural biology, and provides an efficient and stable canna edulis germplasm resource in-vitro preservation method which comprises the following steps: step 1, selecting healthy and pollution-free sterile canna edulis test-tube plantlets; 2, NAA, BA, kanamycin, hygromycin B, sucrose and agar are added to a B5 culture medium formula, and a culture medium is obtained; 3, the test-tube plantlets are inoculated into a culture medium, the culture medium is placed in an artificial climate box to be cultured, and subculture is conducted once every 6-8 months (the generations are controlled within 6 generations); 4, in the culture process, the growth condition of the test-tube plantlet is recorded regularly, and meanwhile, a conventional culture medium without a growth inhibitor is set as a control group. By optimizing a culture medium formula and controlling culture conditions, excessive growth of test-tube plantlets is effectively inhibited, formation of short and strong seedlings is promoted, and functions of root systems and leaves are enhanced, so that long-term, stable and efficient germplasm resource preservation is realized, the transplanting survival rate is remarkably increased, and the method has important application value.

The invention relates to the technical field of application of plant growth regulators to regulation of cotton growth, in particular to application of a plant growth regulator containing chlormequat chloride and uniconazole to regulation of cotton growth, 1000 parts by weight of the plant growth regulator comprises the following components in parts by weight: 70-490 parts of chlormequat chloride, 10-70 parts of uniconazole, 50-250 parts of auxiliaries and the balance of water, wherein the weight ratio of chlormequat chloride to uniconazole is 7: 1. The plant growth regulator disclosed by the invention can effectively control vigorous growth, increase thickness, inhibit height and shrink sections, so that early peach setting, more flowers, more peaches and less shedding are realized, and effective substances for vegetative growth are transferred to reproductive growth, so that the purposes of high yield and quality improvement of cotton are achieved, and the plant growth regulator is safe to cotton, safe to the environment and small in residue.

This invention discloses a culture medium for dwarfing *Cibotium barometz*, belonging to the field of plant tissue culture technology. The culture medium comprises the following components: 1 / 6-1 / 3 MS, sucrose 2-6 g / L, 6-benzylaminopurine 0.03-0.15 mg / L, agar 4-8 g / L, indolebutyric acid 0.01-0.08 mg / L, paclobutrazol 0.25-0.8 mg / L, and activated carbon 0.3-1.0 g / L. This culture medium can synergistically inhibit excessive petiole growth and delay leaf senescence, thus solving the technical problem that *Cibotium barometz* cannot maintain its miniature and graceful morphology and require no maintenance in a closed microenvironment for a long period.