10 results about "Ipomoea" patented technology

The invention provides a sweet potato leaf powder processing technology with a high nutrition retention rate, which comprises the following steps: S1, putting sweet potato leaves into a dynamic fixation roller, and mixing nitrogen and carbon dioxide by adopting a nitrogen and carbon dioxide mixing generator to form nitrogen and carbon dioxide mixed gas, the nitrogen and carbon dioxide mixed gas is heated to 95 DEG C through a heat exchanger and sprayed out, the oxygen concentration in the dynamic fixation roller is maintained to be smaller than or equal to 0.5%, and the chlorophyll degradation rate of the sweet potato leaves is monitored through a near-infrared sensor by inhibiting the activity of polyphenol oxidase of the sweet potato leaves; according to the method, a weak acid environment is formed through CO2 dissolution to inhibit the activity of polyphenol oxidase and reduce the requirement for fixation temperature, active ingredients are reserved through three-area gradient variable-temperature drying and rapid dehydration and freeze-drying sublimation, energy consumption is reduced by 37%, heat stability is improved through polyphenol glycosylation, the bioavailability of beta-carotene is improved to 80% through nano embedding, and therefore nutrient loss is avoided, and the method is suitable for industrial production. The drying efficiency, color and flavor are improved.

The invention relates to the technical field of agricultural detection and plant disease and insect pest recognition, in particular to a rapid identification method for infected sweet potato small weevils, which is technically characterized by comprising the following steps: collecting suspected infected sweet potato samples and hermetically enriching volatile organic gases; acquiring a response signal containing a plurality of gas sensitive elements through electronic nose equipment; performing normalization processing on the original response value, and extracting the maximum response value of each sensor to construct a sample odor feature vector; carrying out dimensionality reduction on the multi-dimensional response data by utilizing principal component analysis to obtain a sample principal component vector; and performing similarity comparison on the main component template and a preset main component template of the ipomoea batatas infection in a database, calculating a similarity index S by adopting cosine similarity, and judging that the infection is positive when S is greater than a set threshold value. The identification process does not need DNA extraction, does not need microdissection, is high in response speed, is suitable for field on-site rapid deployment, and has the advantages of being simple and convenient to operate, sensitive in detection, good in repeatability and the like.

The present utility model relates to a feed formulation for ZAMPEN native chicken (Gallus gallus domesticus) hardening stage characterized by comprising of a basal diet formulation and supplemental feed formulation made from fermented forages. The basal diet formulation comprises: of 1 wt.% molasses, 0.1 wt.% vitamins and minerals, or a combination selected from the group comprising: energy-source component of 4.75 wt.% cassava, 7 wt.%, corn bran, 50 wt.% corn yellow; a crude protein component of 3.9 wt.% copra meal, 20 wt.% fish meal and 12 wt.% soybean meal; and a calcium source component of 0.35 wt.% eggshell, 0.9 wt.% limestone. Whereas the supplemental feed formulation comprises: tricanthera, azolla, duckweed, and vegetable trimmings of pechay (Brassica rapa), mustasa (Brassica juncea), alugbati (Basella alba), kangkong (Ipomoea aquatica), and camote tops (Ipomoea batatas). The said formulation aims to significantly enhance feed intake of the native chicken while reducing feed costs.

The invention discloses an attractant composition for ipomoea salicifolia and application, and relates to the technical field of green prevention and control of agricultural and forestry pests. According to the invention, the S (-)-alpha-pinene, the ()-odontomicus enol, the ()-verbenone, the S-()-cis-verbenone and the trans-2-hexenol are combined for use, so that the attraction effect can be obviously improved by 5-10 times (compared with the independent use of the trans-2-hexenol), and the attraction specificity is ensured, that is, only the male and female adults of the assinus salicina are trapped.

The present application relates to the field of plant disease pathogen identification method, and specifically discloses a sweet potato root rot pathogen DX94, a molecular marker gene, a primer pair, an identification method and application.The DX94 strain is preserved in the China Center for Type Culture Collection on September 4, 2023, and the preservation number is CCTCC NO: M20231589, and the classification name is Fusarium sp.DX94.The molecular marker gene FfIdnDH and the primer provided by the present application can identify the sweet potato root rot pathogen Fusarium foetens, and the accuracy reaches 100%.

The invention belongs to the technical field of desert ecological restoration, and discloses a hedge spiny seedling raising method and system for a field environment. The method comprises the following steps: collecting mature sedge seeds, treating for 3-5 minutes by using drum-type equipment at the rotating speed of 30-50 rpm, breaking the skin, and soaking the seeds in warm water at 38-42 DEG C for 10-12 hours; a modularized detachable seedling raising shed is adopted, movable non-woven fabric seedling raising bags filled with field soil, decomposed sheep manure (or biochar) and sand (the volume ratio is 5: 2: 1) are placed in the modularized detachable seedling raising shed, and an automatic drip irrigation system based on a soil humidity sensor is matched; and carrying out programmed seedling hardening 2-3 weeks before transplanting. According to the method, the embryo damage rate is controlled to be 1% or below, the seed germination rate is stabilized to be 90% or above, the transplanting survival rate reaches 90% or above, the water resource utilization efficiency is improved by 15-20%, operation is standardized, and the method is suitable for large-scale seedling raising in desert photovoltaic areas.

The present application belongs to the field of agricultural technology, and particularly relates to a method for efficiently preparing virus-free sweet potato seedlings by axillary bud differentiation. The present application uses the representative variety "Xiguahong" of sweet potato as the material, selects the healthy stem segments of "Xiguahong" cultivated in the open air, removes the leaves, obtains the aseptic stem segments after disinfection. The stem segments are inoculated on the axillary bud differentiation formula for 20 days, and at least 2 or more axillary buds can be obtained from each stem segment. The bud tips of the aseptic seedlings of "Xiguahong" are peeled off and inoculated on the stem tip meristem formula to obtain the regenerated seedlings. Virus detection is performed on the regenerated sweet potato, and the virus-free sweet potato seedlings can be obtained. The virus-free seedlings are inoculated on the clump plant formula for growth culture, and a large number of virus-free sweet potato seedlings can be obtained. The axillary buds induced by the method have a shape more consistent with the plant bud meristem model, which is convenient for the peeling of the bud tip meristem. The number of regenerated virus-free sweet potato seedlings obtained under the same cost is significantly increased, the efficiency of obtaining virus-free seedlings is improved, and the production cost of virus-free sweet potato seedlings is reduced.

The present application discloses a sweet potato cadmium tolerance related protein IbMYB4 and its coding gene and application. The present application belongs to the technical field of biotechnology, and particularly relates to a sweet potato cadmium tolerance related protein IbMYB4 and its coding gene and application. The protein IbMYB4 is any one of the following: A1) a protein with an amino acid sequence as shown in SEQ ID No. 1; A2) a protein obtained by substitution, deletion and / or addition of amino acid residues of the protein of A1), which has more than 80% identity with the protein shown in A1) and has the same function; and A3) a fusion protein obtained by connecting a protein tag to the N terminal or / and C terminal of A1) or A2). By introducing the IbMYB4 coding gene into wild type sweet potato, the tolerance of the plant to heavy metal cadmium can be improved, and the IbMYB4 coding gene can be applied to sweet potato breeding, and has wide application space and market prospect in the field of agriculture.

The invention discloses DNA demethylase IbROS1 related to sweet potato root tuber development and application, and particularly relates to the field of plant genetic engineering and molecular breeding, the nucleotide sequence of the IbROS1 gene is as shown in SEQ ID No.1, and the sequence of protein coded by the IbROS1 gene is as shown in SEQ ID No.2. According to the invention, an IbROS1 gene is cloned, a plant overexpression vector of the IbROS1 gene is constructed, and an optimized agrobacterium-mediated method is utilized to transform and cultivate sweet potatoes, so that an IbROS1 overexpressed transgenic sweet potato strain is obtained; phenotypic analysis finds that overexpression of IbROS1 can significantly reduce the methylation level of sweet potato genome DNA, and finds that IbROS1 strongly inhibits formation and expansion of tuberous roots, resulting in sharp drop of root weight, reduction of starch content, increase of lignin content and change of related developmental gene expression profiles; the key negative regulation effect of the IbROS1 in sweet potato root tuber development is disclosed, a new gene resource and theoretical basis are provided for accurately regulating the yield and quality of sweet potatoes through an epigenetic means, and the IbROS1 has an important application prospect in sweet potato molecular breeding.

Provided is the use of sweetpotato IbSAP15 gene in regulating leaf shape and flower shape of sweetpotato. Compared with the control, Ipomoea batatas cv. Xuzishu 8, IbSAP15-overexpressing lines have deeper sinuses, dehiscent corollas, and higher ornamental value. In the present disclosure, overexpression of the sweetpotato IbSAP15 gene in sweetpotato can increase a sinus depth of a sweetpotato leaf, make trumpet-shaped corollas dehiscent, and change leaf shape and flower shape of sweetpotato. The present disclosure is suitable for developing sweetpotato germplasms with different leaf shape and flower shape and promotes ornamental flowering / foliage sweetpotato breeding.