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244 results about "Pharbitis nil" patented technology

Ipomoea nil is a species of Ipomoea morning glory known by several common names, including picotee morning glory, ivy morning glory, and Japanese morning glory. It is native to most of the tropical world, and has been introduced widely.

Industrial production method for extracting natural purple sweet potato coloring matter for food from edible purple sweet potato

ActiveCN101962486AHigh yieldStable and bright colorNatural dyesPharbitis nilAqueous solution
The invention discloses an industrial production method for extracting a natural purple sweet potato coloring matter for food from edible purple sweet potato. The method comprises the following steps of: (1) pre-treating the purple sweet potato, namely cleaning and crushing the purple sweet potato; (2) extracting the purple sweet potato coloring matter, namely extracting the coloring matter in acidic aqueous solution with stirring and settling and separating the extract; (3) performing adsorption refining of the purple sweet potato coloring matter, namely filtering the extract and squeezing the filtered extract into a macroporous adsorptive resin column to adsorb the coloring matter, and leaching the resin with water; (4) concentrating and purifying the purple sweet potato coloring matter, namely adding ethanol into the leached resin column for analysis, concentrating the obtained analytical liquid under vacuum, adding de-ionized water into concentrate to adjust the concentration, andperforming ultrafilteration and removing impurities; and (5) performing spray drying to obtain the powdery purple sweet potato coloring matter. By using the method, the yield of the purple sweet potato coloring matter is high, peculiar smell is not generated, colourity recovery rate is over 90 percent and three wastes (waste water, waste gas and industrial residues) are not generated.
Owner:衢州正锐农业科技有限公司

High-yield cultivation method for sweet potatoes

The invention discloses a high-yield cultivation method for sweet potatoes. The high-yield cultivation method comprises the following concrete steps: I, choosing an improved variety: the improved variety is the key to produce the sweet potatoes at high yield; according to the use and the sale, the improved variety is chosen in the light of local conditions, and especially, the new variety is particularly obvious in yield-increasing effect; II, cultivating strong seedlings: the roots of the strong seedlings are numerous and developed, after being planted, the seedlings survive quickly, and hair roots bear the sweet potatoes fruitfully, which lay the foundation for full stands, strong plants, numerous potatoes and big potatoes; the standards of the strong seedlings are shown as follows: thick and strong stems, short internodes, fat blades and moderate sizes, with the features of the improved variety, no diseases, plenty latex of cuts, 50cm to 70cm of vine length and more than 0.5cm of stem thickness; III, transplanting in real time; IV, performing scientific management; V, harvesting the sweet potatoes when potato leaves start to turn yellow and the air temperature is below 20 DEG C, wherein the sweet potatoes require to be harvested before the end of October, and potato tubers should be prevented from being damaged by digging during harvesting. The high-yield cultivation method disclosed by the invention has the advantages that seeds are saved by more than 1 / 3, the buried section number of seedling vines is large, covering of soil is slight, the soil temperature is high, and after ventilation, the survival rate is high.
Owner:邵利

Sweet potato cultivation method in hills and mountains

The invention discloses a sweet potato cultivation method in hills and mountains, comprising the following steps of: A, selecting variety; B, raising seedlings: the seeding time is in March, the seeded potatoes are oblique in rows with head up and tail down, plant ash is covered after seeding, fine soil is covered, dual gold herbicide and glyphosate are sprayed on the ridges, and mulching film is coated; C, planting: considering that the blocks in hills and mountains have different sizes, micro-ridge single-row planting is adopted, the planting time of spring potato is in April, the planting time of summer potato is in May, the head and the middle of seedlings are cut, oblique planting is adopted, soil is covered, and moisture supply is maintained after planting; D, applying fertilizer: sweet potato is potassium-liking crop and the applied fertilizer is mainly organic fertilizer; and E, intertilling, weeding and earthing up: intertilling has the effect on breathing and is performed after planting, the depth becomes shallow, and weeding and earthing up are combined with intertilling. The method is easy and simple to operate, adopts micro-ridge single-row planting, efficiently uses the soil, causes the seedbed to be insulated, prompts the potato tubers to sprout quickly and abundantly, simultaneously can inhibit occurrence of black spot, and increases the yield by 20-30%.
Owner:湖南省作物研究所

Method of rapid seedling growing of true seeds of sweet potatoes

The invention provides a method of rapid seedling growing of true seeds of sweet potatoes. The true seeds are processed for 30 minutes by concentrated sulfuric acid, rinsed by clean water, directly sown in a base material, then covered by a mulching film for 3 days so that all seedlings can sprout, and then irrigated in a micro-jet manner so that seed coats can shed naturally. The micro-jet watering is performed in daily management so as to control the temperature and the humidity. According to the invention, seedling growing procedures are saved; large labor is reduced; and emergence time of the seedlings of sweet potatoes is increased. In addition, via the combination of the mulching film and the micro-jet irrigation, a problem of manual removing of seed coats after the true seedlings of sweet potatoes sprout is solved, labor is saved and percentage of seedling emergency of the true seedlings of sweet potatoes is greatly increased. Tests and statistics show that the average generation rate of the true seedlings of hybridized combination of sweet potatoes is more than 85%, survival rate of seedlings is more than 90% and requirements on planting, inserting and breeding of new varieties of the true seedlings of sweet potatoes can be completely satisfied.
Owner:JIANGSU XUZHOU SWEET POTATO RES CENT +1

Sweet potato distant hybridization breeding method with high success rate

The invention discloses a sweet potato distant hybridization breeding method with a high success rate, and relates to the technical field of plant innovation and new variety breeding of crops. The method comprises the following steps of: taking a wide-compatibility parental sweet potato Xushu 18 as a female parent, and regulating the flower season of the Xushu 18 to be synchronous with that of a wild specie sweet potato by a grafting and dark treatment method; performing water culture on a male parent and the female parent indoor to naturally take root and blossom; after the male parent and the female parent blossom, performing hybrid pollination; after pollinating, coating a hybridization treating fluid (40mg/L 6-benzyladenine, 45mg/L 2,4-dichlorphenoxyacetic acid and 40mg/L naphthylacetic acid) on the stem base of an ovary and the whole flower stalk, and continuously treating for 7 days; and for a combined hybridized ovule which stops early development, adopting immature embryo rescue technology. The hybridization method and a hybridization system of the invention have the advantages of high operability and high success rate. The method is also suitable for indoor directed hybridization of a field naturally blossoming sweet potato material and a conventional sexual hybridization breeding of the sweet potato.
Owner:XUZHOU ACAD OF AGRI SCI

Floating seedling raising method for sweet potato true seeds

The invention relates to a floating seedling raising method for sweet potato true seeds, and belongs to the technical field of sweet potato true seed seedling raising.The method specifically comprises the steps that 1, a floating seedling raising pond is built and filled with water; 2, 200-pore foam floating discs are selected and filled with a seedling raising matrix with the water content of 60%; 3, the germinated sweet potato true seeds which are treated through 98% concentrated sulfuric acid and subjected to hot water and agentia soaking treatment are selected to be seeded and covered with soil, the soil surface is leveled, and the seeds are put into the seedling raising pond to be cultured; 4, water is supplemented for once every about 15 days during culturing; 5, seeding raising fertilizer is applied for the first time 3-5 days after seedlings are neat, the application amount is 15 g/disc, the concentration of nitrogen is kept to be 300 mg/L, and top dressing is performed for once every 7 days; 6, the seedlings reach the strong seeding standard after the seeds are seeded for 30-40 days and can be transplanted together with the soil.According to the floating seedling raising technique, quick and neat seedling emergence of the seeds can be promoted, the seedling emergence rate can reach 100%, the seedlings can be neat after emerging for 3-4 days, growth of the true seedlings can be kept consistent, the seedlings are strong, the root systems are developed, the root-top ratio is high, the plant height is appropriate, and time and labor are saved in the whole process.
Owner:YUNNAN AGRICULTURAL UNIVERSITY

Method for protecting seedlings of sweet potatoes for vegetable use in winter greenhouse and marketing sweet potato seedlings in advance

The invention provides a method for protecting seedlings of sweet potatoes for vegetable use in a winter greenhouse and marketing sweet potato seedlings in advance. The method comprises the following steps of: 1) transplanting cut field matured seedlings into the greenhouse in the last ten days of October; 2) carrying out alive seedling period management on survived sweet potato seedlings in about 20 days after transplanting; 3) additionally covering the greenhouse with a vegetable shedding film in November and carrying out shed management on the sweet potato seedlings, and in the last ten days of March in the next year, picking the sweet potato seedlings in the greenhouse and marketing the sweet potato seedlings and reserving the sweet potato seedlings for field reproduction; and 4) in the middle ten days of April, transplanting the reserved seedlings in the greenhouse to the field, carrying out film covering management after transplanting, and picking and marketing the sweet potato seedling tips in the last ten days of May. The method provided by the invention can be used for effectively overcoming the phenomenon of seedling shortage caused by coldness and high humidity, the sweet potato seedlings can live through the winter and can be stored, and emerge quickly in the early spring to grab market share so as to obtain high benefit.
Owner:INST OF FOOD CROPS HUBEI ACAD OF AGRI SCI

Method for raising seedlings out of sweet potato true seeds through nutritive bags

The invention relates to a method for raising seedlings out of sweet potato true seeds through nutritive bags and belongs to the technical field of seedling raising of the sweet potato true seeds.The method comprises the specific steps of 1, selecting the position of a seed bed; 2, placing the seeds into the nutritive bags, and densely arranging the nutritive bags; 3, selecting sprouting sweet potato true seeds subjected to pretreatment, hand-sowing the sprouting sweet potato true seeds into the nutritive bags, watering the sprouting sweet potato true seeds thoroughly, and covering the sprouting sweet potato true seeds with a thin film; 4, after the seedlings grow fully, removing the film at nightfall or on a cloudy day; 5, on the third to fifth day after the seedlings grow fully, applying a seedling raising fertilizer for the first time, wherein the nitrogen concentration is 300 mg/L, and applying the fertilizer another time seven days later; 6, on the 30 to 40 day after the seeds are sowed, in other words, the strong seedling standard is reached, conducting transplanting with soil.By means of the method for raising the seedlings out of the sweet potato true seeds through the nutritive bags, the germination rate reaches 92% or above, the emergence rate reaches 100%, the seedlings can grow fully in five days, the seedlings grow consistently, the root system is robust, quality of the raised seedlings is high, the adaptive capacity to an acquired environment is great, operation is simple, seedling raising time is flexible, at the later stage, it can be selected to culture the seedlings at site till the seedlings get mature, harvesting is conducted and furthermore the variety is subjected to breeding according to the conditions, the harvest yield of excellent strains is increased, and time for excellent variety breeding is shorted.
Owner:YUNNAN AGRICULTURAL UNIVERSITY

Factory culturing method for sweet potato seedlings with roots and tops

The invention discloses a factory culturing method for sweet potato seedlings with roots and tops. The method comprises the following steps of: establishing a culturing pool matrix, selecting seedlings, cutting seedlings, cutting, adding or pouring a nutrient fluid, and cutting the section seedling, and then the seedling with root and top is cultured. A support disc can be arranged on an agriculture film at the bottom of the culturing pool, the matrix is arranged on the surface of the support disc, and the nutrient fluid is arranged under the surface of the support disc. The nutrient liquid is prepared from the following components in percentage by weight: 48-52% of nitrate nitrogen three-element complex fertilizer, 25-30% of urea, 15-20% of potassium sulphate, 3-5% of potassium dihydrogen sulfate, and 1-3% of copper, zinc, manganese, magnesium, and molybdenum. The invention has the advantages that the culture period is short; the seeding has apical dominance and has roots including main root, side root and storing root; the root can continuously grow after being planted into fields, the drought resistance performance is strong, and the seedling return period does not exist; the growth in the field in the early period is strong, the sweet potato is early to form, the quantity of the formed sweet potatoes is much, and the yield of the sweet potatoes is high; the operating method is simple, and the integration cost is low.
Owner:FUJIAN YUEFENG AGRI PROD

Purple sweet potato medlar dry red wine

The invention relates to a method for brewing a purple sweet potato medlar dry red wine through combined fermentation of medlar and purple sweet potato. The invention belongs to the technical field of brewed wine processing. With the method, current defects such as weak wine body and light color caused by respective brewing of the two materials can be solved. Pigment content of wine brewed by using purple sweet potato can be high, but the wine body is weak. Pigment content of wine brewed by using medlar is relatively low, such that a true dry red wine cannot be obtained. According to the invention, the two materials with different production places and maturity stages are adopted. One of the materials is stored with a freezing or dying method, such that defects of the materials can be made up by each other. The two can be mixed according to a certain ratio, and a dry red wine can be brewed by fermentation. With the method, required sensory demands can be satisfied; more beneficial components in medlar fruits can be leached; product nutrition and flavor can be enriched; a health-care function can be enhanced; and a health-care beverage wine novel product with a unique flavor can be obtained. According to the invention, 1-50% of medlar and 51-99% of a purple sweet potato saccharified liquid are mixed and fermented, such that the purple sweet potato medlar dry red wine is brewed.
Owner:YANTAI VOCATIONAL COLLEGE

Vinasse-made root vegetable flavored food and production process thereof

The invention particularly discloses a vinasse-made root vegetable flavored food and a production process thereof. The vinasse-made root vegetable flavored food is characterized by being prepared from red radishes or white radishes or carrots or kohlrabies or preserved szechuan pickle heads or Chinese artichoke or ginger or allium chinensis or rutabaga or horseradish or alpinia japonica or common beets or jerusalem artichoke or sweet potatoes or taros or potatoes or Chinese yams or burdock or platycodon grandiflorum, and being prepared by the steps of washing the material; slicing or slitting; airing; blending the aired material with flavored pickling material liquid; immersing; and packaging and sterilizing. According to the vinasse-made root vegetable flavored food, the root vegetables are sliced or slit, are aired and rubbed and are immersed by the flavored pickling material liquid; the root vegetable flavored food is delicious in taste, is crispy and tender in mouth feel, and is good in palatability; the inherent unique mouth feel and nutritional ingredients of the root vegetables are kept to the greatest extent, and meanwhile, aromatic substances are added into the pickled vegetable slices or strips, so that the food is mellow and delicious in mouth feeling, the appetite of people is enhanced and a novel product is added to pickled vegetables.
Owner:徐州绿之野生物食品有限公司

Method for identifying salt tolerance of sweet potatoes in seedling stage

PendingCN108241043AObjectively reflect the salt tolerance of seedling stageRapid identificationData processing applicationsDesign optimisation/simulationAgricultural sciencePharbitis nil
The invention belongs to the technical field of agricultural production, and particularly relates to a method for identifying the salt tolerance of sweet potatoes in the seedling stage. The method comprises the following steps: (1) salt stress treatment for sweet potatoes in the seedling stage; (2) physiological indicator detection for sweet potatoes in the seedling stage; (3) data analysis and salt tolerance division; (4) salt tolerance mathematical evaluation equation and salt tolerance index screening, namely stepwise regression analysis by using the salt tolerance comprehensive evaluationvalue D value as a dependent variable and the salt tolerance coefficient of each single index as an independent variable to establish a regression equation, and salt tolerance division according to the comprehensive salt tolerance D value. According to the method, the standard equation result is accurate and reliable, the operation is simple and convenient and is easy to grasp, the method is lessinfluenced by the outdoor environment, the condition is controllable, the comprehensive salt tolerance of sweet potatoes in the seedling stage can be overall reflected, and the result is reliable. Themethod can be used for quickly evaluating the salt tolerance of sweet potato varieties in the seedling stage, has small blindness and high efficiency, and provides germplasm materials to sweet potatosalt tolerance variety seedling and salty land development and utilization in the Yellow River Delta.
Owner:CROP RES INST SHANDONG ACAD OF AGRI SCI
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