Anhui Agricultural University

A cavity-type seed-metering device with a magnetic seed protection assembly is provided, which includes a seed-metering device shell, a seeding plate and a seeding shaft. The seeding plate rotatably mounted in the seed-metering device shell through the seeding shaft. A seeding channel is formed in the seed-metering device shell. Multiple cavities are formed in the seeding plate. Seed filling orifices connected with the cavities are formed in one side of the seeding plate. Seeding outlets connected with the cavities are formed in a circumferential surface of the seeding plate. A magnetic hinge is rotatably connected with the seeding outlet. A notched magnetic ring is fixed in the seed-metering device shell. The magnetic hinge can close the seeding outlet under a magnetic force of the notched magnetic ring. A magnetic block that can attract the magnetic hinge for opening the seeding outlets is arranged in the seeding channel.

The present disclosure relates to the field of wheat genetic breeding technology, and provides a gene TaCaM-3A for seed dormancy in wheat and application thereof. The full-length sequence of gene TaCaM-3A is shown in SEQ NO.1. The present disclosure identifies a gene TaCaM-3A that negatively regulating seed dormancy and sprouting resistance. Functional loss of this gene can significantly enhance sprouting resistance of wheat varieties, and increase grain length, grain width, and yield per plant. This gene has the potential to simultaneously improve sprouting resistance and yield of wheat, and has significant breeding application value in wheat sprouting-resistance breeding.

The present disclosure belongs to the technical field of aroma enhancement of instant tea, and in particular relates to a jasmine essential oil-chitooligosaccharide-cellulose composite, and a preparation method therefor and use thereof. The jasmine essential oil-chitooligosaccharide-cellulose composite of the present disclosure is prepared by a method including mixing chitooligosaccharides and an acidic solution, mixing cellulose and water, and mixing the two milky solutions obtained to obtain a chitooligosaccharide-cellulose emulsion; and then mixing the emulsion with jasmine essential oil to obtain the jasmine essential oil-chitooligosaccharide-cellulose composite. In the present disclosure, encapsulating a natural jasmine essential oil in a chitooligosaccharide-cellulose composite may not only effectively prevent jasmine essential oil from oxidation when exposed to light and oxygen, but also transform a liquid fragrance into solid form.

Disclosed is a Tokamak outer antenna, comprising feed waveguides, brims, sub-waveguides and a metal base. The metal base is in a W shape, both ends of the metal base are connected to the lower surfaces of feed waveguides, respectively. Opposite sides of two feed waveguides are connected to the brims, respectively, and a plurality of sub-waveguides are arranged on the upper surface of the metal base at equal intervals. The height of each sub-waveguide is not higher than the height of the feed waveguide, one feed waveguide serves as a microwave input port, and the other feed waveguide serves as a microwave output port. The Tokamak outer antenna disclosed by the present disclosure is a novel antenna which is simple in feed, low in reflection and transmission coefficients and high in directivity.

The present disclosure provides an antimicrobial peptide (AMP) for controlling Pseudomonas syringae pv. actinidiae (PSA) and a preparation method and use thereof, belonging to the technical field of biological control. In the present disclosure, the AMP has an amino acid sequence of Trp-Trp-Lys-Leu-Leu-Arg-Lys-Leu-NH 2 , and has a typical amphiphilic structure. The AMP can target a cell membrane of the PSA, increasing permeabilization and dissipating a membrane potential, which leads to calcium ion leakage. The AMP also acts on intracellular targets, affects DNA functions, reduces an activity of esterases, and induces the generation of reactive oxygen species (ROS). The AMP has a minimal inhibitory concentration (MIC) of 3.13 μg/mL and a half maximal effective concentration (EC 50 ) of 1.67 μg/mL for the PSA, showing an activity significantly higher than that of agricultural streptomycin.

A preparation method of a low-glycemic index (GI) rice includes: washing indica paddy rice to remove impurities, soaking the indica paddy rice in water to obtain first indica paddy rice, and after the soaking, subjecting the first indica paddy rice to an ultrasonic treatment in water with a first preset volume to obtain second indica paddy rice; after the ultrasonic treatment is completed, filtering out the second indica paddy rice, and cooking the second indica paddy rice in water with a second preset volume to obtain third indica paddy rice; placing the third indica paddy rice in a vacuum bag for sealing, and subjecting the third indica paddy rice in the vacuum bag to an ultra-high pressure treatment in an autoclave filled with water with a third preset volume to obtained fourth indica paddy rice; air-cooling the fourth indica paddy rice, and refrigerating the fourth indica paddy rice in a refrigerator to obtained fifth indica paddy rice; after the refrigerating is completed, oven-drying the fifth indica paddy rice in a blast air oven for 1 h, stopping blast, maintaining a temperature of the blast air oven unchanged, performing tempering treatment on the fifth indica paddy rice, and then oven-drying the fifth indica paddy rice until a moisture content of the fifth indica paddy rice is less than 16% to obtain sixth indica paddy rice; and shelling the sixth indica paddy rice to obtain the low-GI rice.

A welfare-oriented raising house for meat-type ducks, including a raising house, is provided. The raising house is internally provided with a support frame which is of a U-shaped structure and arranged in a length direction of the raising house, a raising net arranged at a top of the support frame, a cleaning and storing mechanism arranged at one end of the support frame for cleaning and storing the raising net, a traction mechanism arranged at the other end of the support frame for the traction of the raising net, blocking mechanisms which are of a zigzag structure and arranged at both sides of the support frame, and tensioning vibration mechanisms arranged at bottoms of the blocking mechanisms and fixedly connected to a side edge of the support frame.

The present invention provides a peeling, screening and cleaning device for Torreya grandis ‘Merrillii ’s. The device comprises an outer rectangular water container, the inner surface of the outer rectangular water container is fixedly connected with the first antirust horizontal separating net, the inner surface of the outer rectangular water container is fixedly connected with the second antirust horizontal separating net. According to the device, the outer pericarp can be separated from the Torreya grandis ‘Merrillii ’s through the cooperation of the outer rectangular water container, water pump and hard water spray pipe.

Tea tree cultivation, and specifically relates to use of sodium selenite in prevention and/or alleviation tea tree sunburn in the prevention and/or alleviation tea tree sunburn. Specifically, the sodium selenite is applied to the tea tree to prevent and/or alleviate sunburn of the tea tree, avoid damage(s) caused by high temperature and drought weather to the tea tree, and reduce losses caused by the sunburn. The method for preventing and/or alleviating tea tree sunburn using sodium selenite is simple to operate and highly efficient. Compared with the existing methods of shading, reasonable dense planting, soil cultivation, drought prevention, and timely irrigation, the method in the present disclosure shows lower economic and labor costs, such that tea farmers can achieve a higher profit.

An adenosine triphosphatase sarcoplasmic/endoplasmic reticulum Ca 2+ transporting 2 (ATP2A2) gene-based molecular marker is provided for identifying a chicken feed efficiency trait, and an identification method and use thereof. A nucleotide sequence of the molecular marker is shown in SEQ ID NO: 1, and a base at locus 926 in the nucleotide sequence is T or G. In the present application, by identifying a genotype of the molecular marker in a chicken genome and then selecting the chicken feed efficiency trait according to the genotype, a breeding method for early selection of the poultry feed efficiency trait is established.