Abstract: The present invention discloses a gradient slow-release active composite film and a preparation method thereof. The active composite film, from inside to outside, is composed of an antioxidative hygroscopic internal layer, at least one gradient anti-microbial antioxidative intermediate layer and at least one waterproof external layer; wherein the antioxidative hygroscopic internal layer is prepared by an alcohol-soluble protein-water-soluble protein substrate and a water-soluble antioxidant; the gradient anti-microbial antioxidative intermediate layer is prepared by an alcohol-soluble protein-water-soluble protein substrate and a lipid-soluble plant essential oil and a water-soluble antioxidant, wherein a mass ratio of the alcohol-soluble protein to the water-soluble protein is (1-2):(1-2); and the waterproof external layer is composed of a hydrophobic alcohol-soluble protein layer.

Abstract: A fused tricyclic compound, an optical isomer, cis and trans isomers or an agromedically acceptable salt thereof, and insecticidal use thereof in agroforestry. A pyrazole-ring-contained fused heterocyclic compound, an agricultural composition, and a method of using the agricultural composition are also provided.

Abstract: The present invention discloses an edible film with enhanced release efficiency of essential oil and a preparation method thereof. The edible film is composed of at least one blank layer and at least one essential oil-rich layer; during casting, the blank layer serves as a substrate layer and the essential oil-rich layer serves as an intermediate layer or an external layer; wherein the blank layer is composed of an alcohol-soluble protein-water-soluble protein composite film, and the essential oil-rich layer is composed of an alcohol-soluble protein-water-soluble protein composite film loading with essential oil. The present invention provides a structure and a method of divisional enrichment of essential oil, wherein the essential oil of equal mass is enriched in a certain layer of the film. Compared with the existing edible film loading with essential oil, the essential oil is loaded to the entire film matrix in the present invention.

Abstract: The present invention belongs to the field of plant genetic engineering. Specifically, the invention relates to a method for creating novel herbicide resistant plants by base editing techniques and a method for screening endogenous gene mutation sites capable of conferring herbicide resistance in plants. The invention also relates to the use of the identified endogenous gene mutantation sites in crop breeding.

Abstract: The present invention discloses a method for increasing the sensitivity of a plant to a gibberellin inhibitor. The method for increasing the sensitivity of a plant to a gibberellin inhibitor provided by the present invention comprises the step of introducing an encoding gene of a protein into a recipient plant to obtain a transgenic plant; the transgenic plant has increased sensitivity to the gibberellin inhibitor compared to the recipient plant; the protein is a protein of the following a) or b) or c): a) a protein whose amino acid sequence is set forth in positions 1-821 of SEQ ID NO: 1: b) a protein whose amino acid sequence is set forth in SEQ ID NO: 1; c) a fusion protein obtained by attaching tag(s) to the N-terminus or/and C-terminus of a) or b).

Abstract: A falling-resistant and anti-drifting unmanned aerial vehicle has a main body and at least one rotor wing thereon. Both sides of the main body have a wing with an airbag filled with gas lighter than air. Bulges protruding downwards are arranged at the bottoms of the airbag. The two airbags are at the same height symmetrically arranged based on the main body. The airbag can function as an undercarriage when the aircraft lands down, and as a buffer when crash landing and then reduce damage to the main body. If the aircraft falls in water, the aircraft can float on the water to avoid damage caused by sinking. As bulges protruding downwards are arranged at the bottoms of the airbags, in spraying operation, side wing can be relatively well baffled by the bulges in case of side wing blowing in the flying process, resulting in less droplets draft.

Abstract: Provided are an antioxidant complex for reducing the number of somatic cells in a livestock animal and a preparation method and application thereof. Active components of the preparation are melatonin (MT) having a centration of 2-30 g/L and vitamin C having a concentration of 1-14.3 g/L. The antioxidant complex provided in the present invention can effectively reduce the number of somatic cells in a diary cow and improve milk quality.

Abstract: A drip irrigation emitter flow channel structural design method and a fractal flow channel drip irrigation emitter product therefor. The method comprehensively considers within a design process the hydraulic performance and anti-blocking performance of a drip irrigation emitter, and mainly comprises stages such as simulation method establishment, flow channel configuration selection, structural parameter determination and flow channel boundary optimization. An optimal flow channel configuration and a structural parameter value range of a drip irrigation emitter flow channel are determined via an optimal value simulation model, thereby defining a drip irrigation emitter primary prototype structural design method.

Abstract: Provided is a method for culturing immature oocytes. The method can promote in vitro maturation of the immature oocytes, and specifically comprises using follicular cells and a culture medium for culturing same. The culture medium for culturing the follicular cells contains CNP or variants thereof or analogues thereof and an HDAC (histone deacetylase) inhibitor. Also provided are the in vitro maturation culture medium containing CNP or variants thereof or analogues thereof and the HDAC inhibitor, and related compositions thereof, and the use of the above medium, culture medium and compositions in the promotion of in vitro maturation of the immature oocytes.

Abstract: The corn genes ZmSPL1 and ZmSPL2 are provided. The proteins encoded by these genes and the uses of these genes are also provided.

Abstract: The present invention disclosed a Nosema bombycis HMG1 gene, a specific primer set used for rapidly detecting Nosema bombycis, a group of microsporidium universal detection primers, and uses thereof. The primer set comprises a primer HMG1-sF and a primer HMG1-sR, and nucleotide sequences of the primers are shown in SEQ ID No. 5-6 respectively. The universal detection primers comprise a primer HMG1F and a primer HMG1R, and nucleotide sequences of the primers are shown in SEQ ID No. 3-4 respectively.

Abstract: A pleuromutilin derivative having a 2-amino phenyl mercaptan side chain as well as a preparation method and application thereof are provided. The derivative has a structure represented by formula 2 or formula 3, wherein, R1, R2 and R3 are each independently selected from a hydrogen atom, hydroxyl, amino, sulfydryl, hydroxymethyl, amine methyl, nitro, halogen, trihalogenated methyl, methyl, natural amino acid acylamino and C1-6 alkoxy. The plueuromutilin derivative in the disclosure has good activity of inhibiting drug-resistant Staphylococcus aureus and mycoplasma, and is especially suitable for preventing and treating infectious diseases caused by human or animal mycoplasma or drug-resistant Staphylococcus aureus or multidrug resistant bacteria as a novel antibacterial drug.

Abstract: A method of forming a fruit and vegetable juice rich in superoxide dismutase (SOD) comprises subjecting the fruit and vegetable juice to ultra-high-pressure processing, the pressure is 100 MPa to 800 MPa, and the time period is 1 minute to 30 minutes. After processings with the present method, the enzymatic activity of SOD is stable and, at the same time, the microorganisms in the fruit and vegetable juice can be killed. Thus, fruit and vegetable juices rich in superoxide SOD may be provided thereby.

Abstract: A drip irrigation emitter flow channel structural design method and a fractal flow channel drip irrigation emitter product therefor. The method comprehensively considers within a design process the hydraulic performance and anti-blocking performance of a drip irrigation emitter, and mainly comprises stages such as simulation method establishment, flow channel configuration selection, structural parameter determination and flow channel boundary optimization. An optimal flow channel configuration and a structural parameter value range of a drip irrigation emitter flow channel are determined via an optimal value simulation model, thereby defining a drip irrigation emitter primary prototype structural design method.

Abstract: The invention belongs to the field of biomass energy utilization, and a continuous pyrolysis and carbonization method of agricultural and forestry biomass is disclosed. The method comprises the following steps: feeding biomass feedstock to a dryer for drying, then transporting to a continuous pyrolysis apparatus for pyrolyzing to obtain pyrolysis semicoke and pyrolysis volatiles; and transporting the pyrolysis semicoke to a carbonization apparatus for carbonization to obtain biomass charcoal and semi-coke carbonized volatiles; then discharging the pyrolysis volatiles and the semi-coke carbonized volatiles, and cooling to obtain tar, wood vinegar and pyrolysis gas; introducing the pyrolysis gas into a combustion apparatus for combustion to obtain a high temperature flue gas; and finally transporting the high temperature flue gas into pyrolysis apparatus and carbonization apparatus for supplying heat, then the flue gas after supplying heat is delivered to the dryer and discharging tail gas.

Abstract: A method for propagating a sterile male plant line includes: (a) providing a first plant that comprises a homozygous recessive male sterility allele; (b) providing a second plant comprising the homozygous recessive allele and a construct, where the construct exists in a heterozygous state and comprises i) a first nucleotide sequence that will restore the male fertility of the first plant after expression, and ii) a second nucleotide sequence that is able to affect the grain shape or the endosperm nutrient material composition in a heterozygous state, which allows for distinguishing the grains with or without said construct by observation through naked eyes or devices; the first nucleotide sequence and the second nucleotide sequence are tightly connected with each other and coexist in plants; and (c) fertilizing the female gametes of the first plant with the male gametes of the second plant.

Abstract: The present invention relates to compositions and methods for improving the abiotic stress tolerance of plants. Plants and plant parts identified, selected and/or produced using compositions and methods of the present invention are also provided.

Abstract: Head smut is one of the most devastating diseases in maize, causing severe yield loss worldwide. The present invention describes the fine-mapping of a major QTL conferring resistance to head smut. Markers useful for breeding, and methods for conferring head smut resistance are described. Nucleic acid sequence from the genetic locus conferring head smut resistance is disclosed. Genes encoding proteins conferring head smut resistance are disclosed.

Abstract: The present invention provides a drought tolerance associated protein, DT1, a nucleic acid molecule encoding the DT1 protein and application thereof.

Abstract: A method induces bacteria to enter into viable, but nonculturable state. The method includes subjecting a target bacterium to high pressure carbon dioxide treatment so as to make it enter into the viable, but nonculturable state, which can be demonstrated experimentally. The viable but nonculturable state can be entered quickly, such as within one hour.