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149 results about "Survival ratio" patented technology

Survival ratio. [sər′vī·vəl ‚rā·shō] (biology) The number of organisms surviving irradiation by ionizing radiation divided by the number of organisms before irradiation.

Method for promoting plant grow using light source and light source products thereof

The invention discloses a method for promoting plant growth by illumination, in particular to designing a light source product with universal meaning according to the spectrum demanded by plant growth, therefore the method of supplementary illumination of plants in raising seedling of plastic tents and factories is found. The method comprises the following processes: (1) seedling preparation; (2) confirming the absorption spectrum of the plants; (3) testing the photosynthesis under different light qualities; (4) comparing and analyzing the experiments so as to confirm the light absorption of different plants; (5) designing light source equipment; (6) supplementary illumination is carried out to the plants. In the method, spectrum test equipment is used for testing the plants with different types; the light sources with different wavelengths are chosen and made according to the absorption spectrum of the plants, therefore the pertinence and efficiency of the light source can be improved efficiently. The bud ratio and the survival ratio can also be improved efficiently, the seedling state can be shortened, the biomass of seedlings can be increased, and the height of the seedlings and the number of leaves are promoted for increasing, thus shortening the growth period of the plants efficiently and improving the efficiency and benefit during raising seedling and growth.
Owner:GUANGXI ACAD OF SCI

Sea cucumber bottom-sowing culture facility suitable for soft seabed

The invention provides a sea cucumber bottom-sowing culture facility suitable for a soft seabed. The facility comprises frameworks, built-in separation nets, built-in dense nets, cuffs, a traction rope, an anchoring object and a marking floater. The frameworks are arranged in parallel and are covered with outer-wrapping netlike clothing, the frameworks are mutually connected to be of a telescopic mesh cage shape, the built-in separation nets for separating each framework into a plurality of culture units are arranged on each framework, the built-in dense net for catching and gathering sea cucumber baits is arranged in each culture unit, cuffs for taking and placing a sea cucumber is arranged on the outer-wrapping netlike clothing of each culture unit, the frameworks on two ends are respectively and sequentially connected with the traction rope and the anchoring object to be fixedly arranged in a seabed, and the marking floater is connected onto one end of the culture facility. Compared with the traditional culture facility, the culture facility provided by the invention is light and convenient, can be compressed, and is convenient for transportation, throwing and management, and the affect from a natural disaster of typhoon and the like is avoided; and by the adoption of the culture facility, the problems of easiness in entrapping by silt, poor culture effect and the like of the traditional culture facility can be solved, particle-like suspended matters in seabed water can be effectively held back as sea cucumber baits, and the survival ratio and the growth rate of the sea cucumber are improved.
Owner:SOUTH CHINA SEA INST OF OCEANOLOGY - CHINESE ACAD OF SCI

Cuttage propagation method of Virginia oak

The invention relates to a cuttage propagation method of Virginia oak, which belongs to the technical field of plant cultivation. The method comprises the following steps: firstly, a sterilizing seedbed is built in a big-arch shelter, an arch shed is built on the seedbed, a hole pan provided with cuttage substrate is arranged in the seedbed, and the cuttage substrate is treated and sets aside; secondly, branches derived from close roots of the Virginia oaks grown for 2-4 years are selected to prune ears in February to March every year when sprouts do not and are about to burgeon, and the ear strips are pruned into branches; thirdly, the branches are treated by root stimulating agent, and the cuttage is done immediately, for the branches which then enter into the management after the cuttage; fourthly, after more than 70 percent of branches root and sprout, the hole pan is moved to forcibly exercise the plantlets outside the big-arch shelter, and the plants are transplanted into ground after being exercised for 30-35 days at the last third of the December or the last third of the February of the next year and enter the management after transplanting. The cuttage propagation adopting the method has high survival ratio and fast propagation speed. The invention is suitable for the climatic environments in most parts of Yangtze River Delta in China and has the survival ratio up to 80-90 percent, and the obtained nursery plantlets of the Virginia oaks have sound quality.
Owner:RES INST OF SUBTROPICAL FORESTRY CHINESE ACAD OF FORESTRY

Method for breeding seed konjac from konjac corms by removing terminal buds

InactiveCN102640639AGerminate as soon as possibleReduce chances of being infested by pests and diseasesHorticulture methodsComing outBud
A method for breeding seed konjac from konjac corms by removing terminal buds is disclosed. The specific method and the benefits thereof are as follows: the terminal bud of each konjac corm before overwintering storage is removed so as to avoid the physiological consumption of the terminal bud in the overwintering period and to start and promote the physiological activity of lateral buds in the overwintering period; a konjac dedicated callusing chemical is used, thereby avoiding wound infection; a 6-benzylaminopurine fluid is used for soaking to improve the activity of the lateral buds of the corms; dormancy breaking and germination acceleration are performed before sowing so that the lateral buds come out in advance; therefore, the growth period is prolonged, and diseased seeds can be discovered before sowing, thus avoiding losses; an appropriate distance between row and plant is capable of increasing the amount of the seed konjac and the acre yield thereof; an appropriate culture method is capable of promoting the konjac to sprout and come up out of the ground as soon as possible; a systematic terminal bud removing breeding method is capable of reducing the probability of the corms suffering plant diseases and insect pests, increasing the survival ratio and increasing the amount of good-quality seed konjac, thereby improving the economic benefit.
Owner:重庆天娇农业开发有限公司

Method of forestation on Jinshajiang river dry-hot valley partitioned slope horizontal ditch

InactiveCN101292618AGet over not rootedOvercome water retentionClimate change adaptationAfforestationRevegetationArid
The invention discloses a method for forestation by means of level trenches on separated slopes in arid-hot valleys of the Jinshajiang River, pertaining to the technical field of soil and water conservation. The method comprises the essential steps of building level trenches on separated slopes, refilling soil, setting nursery stocks and covering with grass. The method of the invention adopts measures such as utilizing the reasonable level trenches on separated slopes to accumulate nature rainfall, mixing appropriate base fertilizers in the refilling soil, etc., which greatly increases the survival ratio and preservation rate of forestation nursery stocks. The method of the invention can ensure that the survival ratio of nursery stocks of jatropha curcas and hedge acacia under the circumstances of no irrigation water is increased to more than 95 percent, which is increased by 32 percent and 18 percent respectively than the control group, and both preservation rates are increased to more than 92 percent in 1 year and are respectively 42 percent to 82 percent higher than the control group; after half a year, the tree crown growing widths of the jatropha curcas and the hedge acacia are increased by 50 cm multiplying 49 cm <2> and 32 cm multiplying 32 cm <2> respectively. The method of the invention successfully solves the problem of soil moisture during forestation in arid-hot areas of the Jinshajiang River and has practical and profound significance in revegetation and ecological reconstruction of such areas.
Owner:RES INST OF TROPICAL ECO AGRI SCI YUNAN ACAD OF AGRI SCI

Irrigation-free maintenance-free combined grow module of roof top garden

InactiveCN101313654ACountless benefitsCountless wealthCovering/liningsGeneral water supply conservationPlant rootsSurvival ratio
The invention provides a roof garden combination planting module which does not need water, electricity, artificial watering and maintenance and is energy saving and environment friendly. The module consists of five parts of a rain water collecting box, a drainage plate, a planting box, edge sealing strips and angle sealing strips. The module is particularly applied to the greening of old houses and light steel roofs, which is low in cost requirement, small in bearing and difficult in watering and maintenance. The combination planting module depends on the structural advantages and has the characteristics of plant root resistance and water storage intercommunication; on the one hand, the module can be directly arranged on roofs to be used without needing the cooperation of root resistance waterproof coiled materials of other plants, on the other hand, the module does not need a large number of water supply pipes and adaptors, thereby greatly reducing cost of a roof garden system. Depending on the advantages of the standardized function design, the combination planting module has the characteristics of high commonality of products, strong adaptability of the system, high survival ratio of plants, short construction cycle, no construction rubbish, quick and convenient arrangement, low labor intensity, low product cost and convenient large-scale flow line production, etc.
Owner:上海银鼎工程技术有限公司 +1

Method of preparing yeast rich in copper

The invention relates to a preparation method of copper-rich yeast. In the invention, high-copper resistant yeast strains are firstly prepared: yeast strains with different biochemical characteristics are cultivated in a culture medium in a gradient copper concentration, and the ones having maximal survival ratio are used as strains to be mutagenized; the strains to be mutagenized are inoculated on the culture medium of diethyl sulfate for mutagenesis; the strains after mutagenesis are inoculated in the culture medium in a gradient copper concentration for cultivation, fungus liquid collection, filtering and drying are carried out, and the strains after mutagenesis with biomass and copper content simultaneously higher than average values are used as the high-copper resistant yeast strains. And then the high-copper resistant yeast strains are used for preparing the copper-rich yeast, and the working procedures are as follows: slant strain cultivation; first-stage liquid seed cultivation; second-stage seed cultivation; fermentation cylinder cultivation; separation drying; grinding; and products of copper-rich yeast. The additives of the copper-rich yeast prepared in the invention greatly improves the absorption utility ratio of copper in animal organisms, increases the economic benefit, and can be applied to copper addition for beasts and birds, and aquatic livestock as feed additives.
Owner:ZHEJIANG UNIV

Special feed for juvenile alligator snapping turtle

The invention discloses special feed for a juvenile alligator snapping turtle, which comprises the following components in percentage by weight: 49 percent-70 percent of fish meal, 8 percent-30 percent of bean pulp and/or meat and bone meal, 9.8 percent-23.2 percent of starch, 0.2 percent-4.7 percent of fish oil, 0 percent-6 percent of monocalcium phosphate, 0.5 percent-1 percent of vitamin, 1 percent-2 percent of mineral substance and 0.1 percent-0.3 percent of choline chloride. In the invention, the special feed for the juvenile alligator snapping turtle has the advantages of excellent raw materials and scientific nutrition preparation and can ensure that the raw materials are completely ingested by the juvenile alligator snapping turtle without generating aquaculture pollution caused by waste feed, wherein the crude protein is more than or equal to 45 percent, the crude fat is more than or equal to 6 percent, the water content is less than or equal to 10 percent, and the floating time is up to 8-10 hours; after the part of fish meal is replaced by the bean pulp and/or the meat and bone meal, the survival ratio of the alligator snapping turtle is not influenced, but various indexes, such as terminal weight, specific growth ratio, weight growth ratio and the like are obviously improved, and the production cost is greatly reduced.
Owner:GUANGZHOU XIANBU AGRI TECH

Aralichthys lethostigma parent fish rearing method

The invention relates to a method for breeding parent fish of paralichthys lethostigma. The method comprises desalination culture and salinization culture of standby parent fish as well as intensive culture of the parent fish. Specially made feed is fed during the intensive culture of the parent fish, wherein, the weight percentages of main materials in the feed are the following: 30-40 percent of Gobiidae or ammodytes, 15-20 percent of cuttlefish or sleeve-fish, 15-20 percent of sea cucumber and 20-30 percent of bastard halibut powder; the weight percentages of additives accounting for the main materials are the following: 1-2 percent of parent fish hardening agent, 0.4 percent of Vc and 0.4 percent of Ve; the feed particle size is 9mm-11mm. During light and temperature regulation and control, four bulbs are suspended over each parent fish culture tank with two bulbs of 60W and two bulbs of 150W suspended on the cross to obtain even light; water temperature is raised to 17 DEG C from 14.5 DEG C. Based on biological characteristics of wide optimum salinity of the paralichthys lethostigma, the invention makes use of F1 replacing fingerlings to culture standby parent fish in fresh water after desalination, and after salinization the standby parent fish is intensively cultured to obtain sexually mature egg-laying parent fish, thereby effectively solving the problem of high cost, restriction, poor parent quality and low survival ratio of introduced paralichthys lethostigma parent.
Owner:天津市水产研究所

Method for shortening the production period of mango

The invention relates to the plant hybridization breeding and cultivation technology and provides a method for shortening the production period of mango. The method is characterized by comprising the following steps: 1) sowing seedlings and transplanting; 2) selecting polyembryonic varieties to be grafted trees, performing heading-back cut to grafted trees half treetop to use as stock; 3) selecting robust seedlings for grafting, top-grafting the seedlings on the stock of grafted trees; and 4) dressing multi-effect triazole in the soil, digging shallow ridges on the two sides of the tree covers of the grafted trees after grafting, irrigating multi-effect triazole and earthing. The invention has the following prominent substantive features and significant progresses: 1. seedling high grafting technology is adopted in the method so as to increase the grafting survival ratio; 2. the dressing multi-effect triazole technology is used to control the spindling of branch tips of grafts, promote the branch tips for aging and create beneficial nutrient conditions for advancing blossom and fruiting and promoting fruit-bearing; 3. the invention is simple and practical, potential hybrids can bear fruits after half a year so that potential hybrids and false hybrids can be identified directly and fast and the breeding process of mango is greatly shortened; and 4. the method of the invention can be popularized to the mango production so that the economic benefit of the method is remarkable owning to early fruiting and appearing on the market.
Owner:GUANGZHOU SUGARCANE IND RES INST

Rain cultivation method of forestation on dry-hot valley dryland hillside fields

The invention discloses a method for water-fed forestation in arid hillside fields of arid-hot river valleys, pertaining to the technical field of water-saving agriculture. The method comprises the steps of digging large ponds, backfilling prepared fertilizers, cultivating, strengthening and field planting seedlings, timely field planting against the rain in rain season, covering with grass to keep water, top dressing in rain season to promote the seedlings, wherein, the length, the width and the depth of the planting hole of an arbor tree is 120 cm multiplied by 80 cm multiplied by 100 cm while a frutescose tree is 80 cm multiplied by 50 cm multiplied by 60 cm and the planting hole is perpendicular to slope direction; when backfilling the soil, the soil in each pond is mixed with 5 kg to 10 kg of organic fertilizer and 2 kg to 4 kg of mixed fertilizer of calcium, magnesium and phosphate fertilizers; field planting is carried out in May to June with sufficient rain water; after the field planting of nursery stocks, the weeds are cut in time for covering the tree pond; approximately 20 days after the field planting of the nursery stocks, quick effective nitrogen fertilizer is applied in proper time. Adoption of the method of the invention can enhance the survival ratio of forestation in arid hillside fields of arid-hot valleys under the circumstances of no irrigation water to more than 95 percent and the preservation rate to more than 90 percent. The technology of the invention is scientific, reasonable and feasible and has high significance in revegetation and ecological reconstruction of arid-hot river valleys.
Owner:RES INST OF TROPICAL ECO AGRI SCI YUNAN ACAD OF AGRI SCI
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