11 results about "Stratification (seeds)" patented technology

The invention belongs to the technical field of agricultural breeding, and discloses a method for improving the germination rate of glehnia littoralis seeds, which comprises the following steps: (1) seed pretreatment: screening the glehnia littoralis seeds harvested in the current year, removing impurities, and removing malformed, worm-damaged and empty seeds; (2) pre-absorbing water by the seeds: soaking the screened seeds in clear water, and draining water on the surfaces of the seeds after the seeds are fully absorbed and swollen; (3) hormone solution preparation and seed soaking: preparing an indolebutyric acid solution, soaking the cleaned seeds in the indolebutyric acid solution, and performing heat preservation and seed soaking; and (4) low-temperature lamination: mixing the soaked seeds with sterile wet sand, and laminating in a low-temperature environment. According to the method, the germination rate and germination uniformity of the glehnia littoralis seeds can be remarkably improved, and the requirement for large-scale planting of the glehnia littoralis

The invention relates to the technical field of plant tissue culture and endangered tree seed breeding, in particular to an efficient embryo germination culture method for breaking through the deep dormancy characteristic of tilia amurensis, and aims at solving the problems that existing tilia amurensis seed breeding is low in germination rate, long in period, high in pollution rate and poor in embryo seedling quality. The method comprises the following steps: selecting robust tilia amurensis seed trees in specific areas such as 129 degrees, 19 '+ / -0.5 degrees and the like of the east longitude, and harvesting seeds with the water content of 45.25%-59.06% from August 29 to September 20; stratification is conducted at the low temperature of 4 DEG C for 20 days, 50 mg / L GA3 is added, soaking is conducted for 12 h, and pretreatment Precisely disinfecting with 75% alcohol and 2% sodium hypochlorite; cutting a 1-2mm notch on the seed coat, and then carrying out antioxidant treatment by using a vitamin C-humic acid solution; inoculating to an optimized MS culture medium containing hormones such as 0.1 mg / L 6-BA, carrying out dark culture at 22 DEG C for 5 days, and then carrying out 2000lx illumination culture at 24 DEG C; according to the method, deep dormancy is efficiently broken, the pollution rate is low, embryo seedlings are robust, and large-scale breeding and population recovery of tilia amurensis can be supported.

This invention relates to the field of agricultural biotechnology and discloses a ternary hormone complex solution for promoting the germination of tetraploid Polygonatum sibiricum seeds. By mass percentage, it consists of the following raw materials: gibberellin 0.005%–0.02%, 6-benzyladenine 0.0005%–0.002%, salicylic acid 0.0005%–0.002%, with the balance being water. The germination method includes the following steps: S1: seed pretreatment; S2: hormone soaking; S3: substrate sterilization; S4: sand stratification for germination. This ternary hormone complex solution and germination method can significantly improve the germination rate of tetraploid Polygonatum sibiricum seeds and effectively reduce the mold rate during the seed germination period.

The invention discloses a root promoting nutrient solution and a herba epimedii root strengthening and bud increasing seedling raising method, and the method comprises the following steps: performing seed initiation on herba epimedii seeds, performing sand storage and stratification for 60-90 days, and accelerating germination until white buds appear; sowing the white and sprouted seeds on the seedbed, covering the seeds with a substrate, and growing seedlings; when 1-2 true leaves of each seed seedling expand and stem nodes extend to 3-5 cm, terminal buds are completely covered with humic fine soil with the pH being 5.5-6.5, and the soil covering thickness is 1.0-2.0 cm; 2-4 L of a root-promoting nutrient solution is used in each square meter of the seedbed after the seedbed is covered with the soil, and the root-promoting nutrient solution is prepared by adding 150-200 mg of algal polysaccharides, 1.1-1.66 mg of salicylic acid and 800-1200 mg of monopotassium phosphate into each 1 L of water; 30-60 days after the seedbed is covered with soil, when axillary seedlings exist, after more than or equal to 5 secondary roots are formed at the base parts of the axillary seedlings, stem nodes connecting the mother seedlings and the axillary seedlings are transversely cut off in the middle, and the distance between notches and the base parts of new seedlings is 2 + / -0.5 cm; a wound healing nutrient solution is sprayed to notches of the mother seedlings and the new seedlings, and the mother seedlings and the new seedlings are cultured to adult seedlings respectively. The problems that an existing epimedium breeding method is low in breeding coefficient, low in seedling quality and the like are solved.

The invention relates to a posture-adjusting and filling-promoting centrifugal corn high-speed precision seed-metering device and a seed-metering method, and belongs to the technical field of harvesting equipment in agricultural machinery, the posture-adjusting and filling-promoting centrifugal corn high-speed precision seed-metering device comprises a rear shell, a bearing, a seed-metering disc, a flow guide turbine, a transmission shaft, a seed protection plate, a hole insert, a layered annular partition plate and a front shell; the seed metering disc comprises a posture adjusting groove; the layered annular partition plate comprises sieve holes. According to the seed-metering device, single-grain ordered seed metering of corn seeds is achieved through the centrifugal effect, population layering and posture adjustment are achieved through the synergistic effect of a flow guide turbine and a layered annular partition plate, seeds are filled in the thickness direction by combining the cooperation of a posture adjusting groove and screen holes, and the problems that due to the fact that the shapes of the corn seeds are irregular, inter-seed resistance is large, seed filling time is short, and seed filling efficiency is high are solved. And invalid seed filling such as seed blocking and blockage of the seed metering device in high-speed operation is easy to occur. Compared with a pneumatic high-speed seed-metering device, the structure of the seed-metering device is simplified under the condition of ensuring high-speed precise seed metering, and meanwhile, the operation energy consumption is greatly reduced.

The invention relates to an efficient comprehensive propagation method suitable for carpinus zenii, and belongs to the technical field of forest tree breeding. The method is characterized in that two propagation systems of asexual cutting and seed seedling raising are integrated in the method, the asexual cutting propagation system is characterized by mainly comprising the steps of cutting preparation, matrix preparation and cutting, rooting, transplanting management and the like, and the cutting is from carpinus zenii seedlings which are 3-5 years old and have high C / N leaves; the seed seedling breeding system is characterized in that the seed seedling breeding system mainly comprises the steps of seed collection and screening, variable temperature stratification treatment, sowing and germination management, seedling maintenance and the like, and the variable temperature stratification treatment refers to the process that sand-stored seeds are placed under the natural conditions of shading and ventilation for overwintering so as to complete variable temperature stratification. According to the comprehensive complete set of technical scheme, nursery stocks with genetic consistency and genetic variation can be obtained, and artificial populations with rich genetic diversity can be cultivated. The C / N of seedling leaves is increased through sufficient illumination and fertilizer control, cutting slips are collected in the morning and the like, a large number of cutting slips successfully take roots and grow seedlings, and the seedling rate of the cutting slips reaches 73.11%; the seedling rate of the full seeds can reach 83.95% through measures of variable-temperature stratification of the sand-stored seeds under natural conditions, delayed seedling transplanting and the like.

The invention provides a bock greenbrier rhizome seed seedling raising method, and belongs to the technical field of seed seedling raising. The method comprises the following steps: disinfecting bock greenbrier rhizome seeds, placing the disinfected bock greenbrier rhizome seeds and wet sand in a layered manner, carrying out stratification germination acceleration for 5-7 months, laying a seed layer with the thickness of 0.3-0.8 cm on each wet sand layer with the thickness of 0.5-1.5 cm, then sowing the germinated seeds, carrying out seedling culture to obtain seedlings, and transplanting the seedlings to a field. According to the method, the germination rate of the seeds can be increased, the obtained seedlings are high in vigor and transplanting survival rate, and the seedling raising time of the bock greenbrier rhizome seeds can be greatly shortened from 3-4 years of a traditional seedling raising method to 1 and a half years. The technical details involved in the method are simple to operate and easy to master, and the ecological environment cannot be greatly influenced.

The invention discloses a seed warehouse stratified sampling device, and relates to the field of grain seed storage, the seed warehouse stratified sampling device comprises a sampling pipe, the sampling pipe adopts a hollow tubular structure, a plurality of sampling ports are equidistantly formed in the surface of the sampling pipe along the length direction, and a partition plate is arranged above each sampling port; the interior of the sampling pipe is divided into a plurality of independent sampling partition cavities at equal intervals through partition plates, a main shaft is installed in the center of the interior of the sampling pipe in the axial direction in a penetrating mode, and a sealing assembly used for opening a sampling opening and an auxiliary sampling assembly used for auxiliary sampling are installed at the position, located at each sampling opening, of the main shaft. The multiple independent sampling separation cavities distributed in the length direction of the sampling pipe at equal intervals are matched with the sealing assemblies and the auxiliary sampling assemblies which can be synchronously opened and closed at the sampling openings, so that the layered sampling accuracy is effectively ensured, mutual doping of seeds of different depths can be thoroughly avoided, and the specific state of the seeds of each layer is truly reflected.

This invention belongs to the field of ecological environment restoration technology and discloses a method for ecological restoration of grassland vegetation in photovoltaic power station areas in Gobi deserts. The method uses planted semi-shrubs as the core framework, employing micro-topography modification and seedling technology to effectively stabilize and improve gravelly soil, enhancing the stability of the topsoil structure. A specific ratio of mixed grass seeds is sown within a 15-30cm radius around the planted plants, forming a semi-shrub-herbaceous multi-layered structure. The complementary functions and vertical stratification of these two types of grasses promote stable community succession. Furthermore, the application of a specific ratio of organic fertilizer and water-retaining agent improves the soil at the bottom of the planting pit. This method not only avoids the waste associated with large-scale seed sowing but also significantly improves seedling emergence and survival rates, rapidly increasing vegetation coverage, reducing maintenance frequency and costs, and has broad application prospects in the ecological restoration of gravelly land.

The present application relates to the technical field of plant breeding, and discloses a breeding method of endangered angiosperm Alipelta, comprising the following steps: sexual reproduction treatment: treating Alipelta seeds to obtain a group of Alipelta seedlings, wherein the treatment comprises soaking the Alipelta seeds in a gibberellin solution with a concentration of 150-250 mg / L for 36-60 hours; single plant screening: screening an excellent single plant with preset excellent traits from the group of Alipelta seedlings; cutting propagation treatment: treating the excellent single plant to realize amplification. Through the sexual reproduction treatment step of combining stratification treatment with soaking in a gibberellin solution with a specific parameter range, the deep dormancy problem of the Alipelta seeds is solved, and the dormancy state of the Alipelta seeds is effectively released, so that a high seed germination rate is obtained.

This invention relates to the field of Chinese medicinal herb cultivation technology and discloses a method for large-scale seed propagation of Polygonatum multiflorum. The method includes the following steps: (1) selecting mother plants to harvest fruits, softening them by composting, and then removing the pulp by mechanical rubbing to obtain clean seeds; (2) subjecting the clean seeds to low-temperature stratification treatment at 0-5℃ for 20 days, and then soaking them in a plant growth regulator obtained by diluting 4wt% gibberellin 800 times for 12-24 hours; (3) placing the soaked seeds in moist sand in a wooden box in an arched shed for sand stratification and germination at 1-10℃; (4) after the seed whitening rate reaches 15%, sowing them in a seedling substrate and carrying out seedling management. This invention effectively overcomes the technical bottlenecks of low germination rate, uneven emergence, and frequent diseases in traditional methods, and realizes the overall optimization of seedling quality and standardized control of the production process, and has good prospects for industrialization and promotion.