12 results about "Cunninghamia" patented technology

The utility model relates to a cunninghamia lanceolata florescence pollination cover which comprises a C-shaped ring, a clamping assembly is arranged in the C-shaped ring, a conical cover is fixedly installed at the bottom of the C-shaped ring, a cylinder is fixedly installed at the bottom of the conical cover, notches corresponding to the C-shaped ring are formed in the side wall of the conical cover and the side wall of the cylinder, and the C-shaped ring is arranged in the C-shaped ring. Sliding grooves are formed in the outer wall of the C-shaped ring and the outer wall of the cylinder, sliding blocks are installed in the two sliding grooves in a sliding mode, and plastic outer covers are fixedly installed on the outer sides of the two sliding blocks. According to the pollination sleeve cover for the flowering phase of the cunninghamia lanceolata plant, firstly, a cunninghamia lanceolata branch with a ball flower is put into the device through the notch, then the plastic outer cover is slid to cover the notch, pollen spraying equipment can be used for pollinating the cunninghamia lanceolata autumn flower at the bottoms of the cylinder and the plastic outer cover after covering, and after pollination is completed, the plastic outer cover is slid to the outside of the device and can be rapidly taken down. The whole use process is simple and convenient to operate, and the pollination efficiency is remarkably improved.

The invention discloses burkholderia with phosphorus dissolving and plant growth promoting functions and application of the burkholderia. The invention provides burkholderia cunninghamiae or a progeny of the burkholderia cunninghamiae, the burkholderia cunninghamiae is burkholderia cunninghamiae, the strain number of the burkholderia cunninghamiae is SSBN10R, and the registration number of the burkholderia cunninghamiae in the China General Microbiological Culture Collection Center is CGMCC (China General Microbiological Culture Collection Center) No. 35175. The cunninghamia lanceolata Burkholderia sp. Provided by the invention has the characteristics of dissolving phosphorus and producing IAA, and can promote the growth of cunninghamia lanceolata and increase the content of available phosphorus in soil. The method has important significance in the aspects of Chinese fir cultivation, soil improvement, microbial resource research, biological fertilizer development and the like.

The invention provides a large-range cedarwood stock estimation method and system based on a CR-RF hybrid model, and the method comprises the steps: 1, collecting Landsat time series data in a research region, and carrying out the data preprocessing; step 2, constructing NBR annual median synthesis time sequence data; 3, post-processing the forest age data to obtain a Chinese fir forest age distribution diagram in the research area; 4, taking the forest age of the cunninghamia lanceolata obtained in the step 3 in combination with the auxiliary data as an independent variable, and taking the actually measured stock of the sample plot as a dependent variable to construct a specific growth equation of the region; 5, extracting growth process variables from the Landsat long time series data, and performing variable screening by adopting a recursive feature elimination algorithm RFECV based on cross validation; step 6, constructing a hybrid model CR-RF by using a random forest RF method; and step 7, exporting a spatial distribution diagram of the cedarwood stock through the hybrid model CR-RF trained in the step 6. By applying the technical scheme, the robustness and interpretability of the accumulation estimation under different ecological regions and operation intensities can be improved.

The present application belongs to the technical field of species provenance tracing, and particularly relates to a primer set of molecular markers for identifying populations of endangered plant Cunninghamia lanceolata and application thereof. The present application provides five molecular markers DYS, SHS, BMS, HP and DLS for identifying populations of endangered plant Cunninghamia lanceolata for the first time, wherein the molecular markers DYS, SHS, BMS, HP and DLS are respectively used for identifying the Dayaoshan population, the Shunhuangshan population, the Bamianshan population, the Huaping population and the Daluoshan population of Cunninghamia lanceolata. Then, a primer set for amplifying the molecular markers DYS, SHS, BMS, HP and DLS is designed, and a tracing method of the source of Cunninghamia lanceolata is developed. The method can trace the geographical source of Cunninghamia lanceolata simply and efficiently, and provides reliable technical support for the judicial identification and species control of the endangered plant Cunninghamia lanceolata.

The invention provides a forest waste biochar base fertilizer for coastal low-lying land soil improvement, which is characterized in that biochar with different characteristics is prepared through a directional carbonization process by utilizing the difference of tree wastes such as leaves, barks and branches in fiber density and chemical composition, and pseudomonas putida and montmorillonite are respectively loaded according to the porosity difference. Layered matching is carried out according to requirements of soil layers, the physical structure of soil is effectively improved, hardening and salt stress are relieved, meanwhile, the long-acting slow-release characteristic is achieved, the nutritional requirements of taxodium orientalis seedlings in the whole growing season can be continuously met, overground part growth and root development of taxodium orientalis can be effectively promoted, and the survival rate of taxodium orientalis seedlings is increased. And a green, economic and sustainable technical approach is provided for ecological restoration and vegetation reconstruction of the coastal saline-alkali land.

The invention discloses a cunninghamia lanceolata seed source breeding and configuration method integrating a hydraulic structure and resource utilization efficiency, and belongs to the technical field of seed source breeding. The method comprises the following steps: S1, establishing a cunninghamia lanceolata provenance functional trait database based on leaf traits, wood traits, root traits and hydraulic traits of cunninghamia lanceolata of different And S2, constructing a water-carbon efficiency strategy map based on the provenance functional character database, and carrying out Chinese fir breeding and configuration on different regions based on the water-carbon efficiency strategy map. According to the method, the water consumption-carbon sequestration tradeoff relation of different provenances is quantified, and a quantitative basis is provided for regional water resource management and carbon sink afforestation.

This invention discloses a method for the selection and configuration of Chinese fir (Cunninghamia lanceolata) germplasm that integrates hydraulic structure and resource utilization efficiency, belonging to the field of germplasm selection technology. The method includes: S1, establishing a functional trait database of Chinese fir germplasm based on leaf, wood, root, and hydraulic characteristics of different germplasm sources; S2, constructing a water-carbon efficiency strategy map based on the germplasm functional trait database, and selecting and configuring Chinese fir in different regions based on the water-carbon efficiency strategy map. This invention quantifies the "water consumption-carbon sequestration" trade-off relationship of different germplasm sources, providing a quantitative basis for regional water resource management and carbon sequestration afforestation.

The invention discloses a cunninghamia lanceolata forest soil plant silicon body carbon sink potential estimation method, and relates to the field of data analysis, and the method comprises the steps: selecting a sampling land based on a cunninghamia lanceolata forest distribution region, a site condition type and stand development integrity, and dividing the sampling land into an initial stage forest, a middle stage forest, a mature stage forest and a special regeneration forest according to stand development stages, selecting grids in the sample plot based on three-dimensional grid division and random sampling so as to collect soil samples of soil layers with different depths; through the design of sample plot selection and three-dimensional grid sampling, the representativeness and uniformity of soil sample collection are improved, the accuracy of detection indexes is ensured through standard pretreatment and an efficient plant silicon body extraction technology, meanwhile, core driving factors are analyzed and identified in combination with multi-dimensional coupling, and the accuracy of the detection indexes is improved. Forest stand development and environmental factors are integrated into the constructed dynamic correlation model, and the carbon sink scale of each stage can be accurately deduced.

The application discloses a Chinese fir chloroplast SNP molecular marker and application thereof. The application develops a Chinese fir chloroplast SNP molecular marker combination for identifying Chinese fir individuals, and the combination comprises 60 Chinese fir chloroplast SNP sites. After primers capable of specifically amplifying the chloroplast SNP molecular marker combination are used to amplify a Chinese fir variety to be tested, sequencing is performed, and a SNP sequence characteristic of the Chinese fir variety to be tested is obtained. Therefore, by using the SNP molecular marker and the amplification primer thereof developed by the application, Chinese fir samples can be accurately and efficiently identified, and technical support is provided for high-quality Chinese fir individual resource protection and utilization.

The invention relates to the technical field of preparation and purification of active ingredients of natural products, and discloses a cryptomeria fortunei essence anti-hair-loss hair-nourishing scalp care agent and a preparation method thereof.The preparation method comprises the steps that cryptomeria fortunei raw materials are extracted in a low-temperature high-concentration ethanol water solution through ultrasonic assistance; then low-temperature pure water is added for high-speed dilution, and slightly soluble impurities are induced to be separated out into a solid state; the method comprises the following steps: removing solid medicine residues and separating out impurities through primary solid-liquid separation, adding biocompatible protein into clear liquid, adjusting the pH value to realize co-precipitation so as to remove soluble sensitizing impurities in a targeted manner, and finally, carrying out secondary solid-liquid separation to obtain the cryptomeria fortunei essence. Decoupling of the active matter and sensitization impurities in dissolution characteristics is achieved, degradation of heat-sensitive active matter caused by high temperature is avoided, and meanwhile the problems that the cost is high and the yield is low when high-similarity matter is separated through a traditional purification means are solved.

The invention discloses a method for improving the embryogenic ability of cedarwood based on 5-azacytidine, and belongs to the technical field of plant biology. The method comprises the following steps: carrying out dark culture on cunninghamia lanceolata embryogenic calluses in a proliferation culture medium containing 5-azacytidine; carrying out dark culture on the calluses in an induction culture medium to induce cotyledon cell embryos; and finally, carrying out illumination culture on the somatic embryos in a germination culture medium. According to the method, 5-azacytidine with a specific concentration is exogenously added in explant proliferation and induction stages, so that the cell DNA methylation level can be remarkably reduced, and the embryogenic state of the callus is effectively maintained. Practice shows that the method can significantly improve the proliferation efficiency (up to 2.6 times) and the somatic embryo occurrence rate (up to 2.9 times) of cunninghamia lanceolata calluses of different genotypes, and an effective scheme is provided for solving the technical problem that the somatic embryogenesis capacity of cunninghamia lanceolata declines.

The invention discloses Chinese fir interaction transcription factors ClbHLH30 and ClbHLH93 and application of the Chinese fir interaction transcription factors ClbHLH30 and ClbHLH93 The invention further discloses a cedarwood ClbHLH93 gene and application thereof in increasing the hemicellulose content of plants. The cunninghamia lanceolata growth and development related ClbHLH30 gene is overexpressed in the poplar, the lignin content can be reduced, and papermaking is more facilitated, on the other hand, the cunninghamia lanceolata growth and development related ClbHLH30 gene is overexpressed in the poplar, the tree species poplar can be dwarfed, and follow-up scientific research activities such as pollination and seed collection on trees are facilitated. Proteins coded by the ClbHLH30 gene and the ClbHLH93 gene related to growth and development of the Chinese fir are over-expressed in 84K poplar plants, and the hemicellulose content of the 84K poplar can be effectively increased.