32 results about "Single spike" patented technology

The invention discloses a fertilizing method for solving the problem of biennial bearing of paraphlonia. 1)after defoliation of paraphlonia in winter, branches of paraphlonia are retracted and trimmed to length of 10-30 cm, pit-expansion for fertilizing is carried out, root cutting treatment is carried out around the plants, annular trenches are dug, a fertilizer A and soil are uniformly mixed and applied in the trench; 2) after germinating of new tips in spring, when the sprout length of the paraphlonia is less than or equal to 5 cm, a fertilizer B is sprayed on the paraphlonia leaves, after the new shoot is grown to length of 15-25 cm, a fertilizer C is used for sprinkling the paraphlonia leaves, after the new shoot is grown to length of 25-40 cm, a fertilizer D is used for sprinkling the paraphlonia leaves. The paraphlonia is induced by the fertilizer B, the fertilizer C and the fertilizer D containing purslane herb, the nutrition-type meristematic tissue can be converted to inflorescence-type meristematic tissue, and floral induction is realized. rice hanging rate on single spike of paraphlonia can reach more than 95%, the problem of biennial bearing of paraphlonia can be effectively solved, output of paraphlonia is comprehensively increased, and the plantation benefit of paraphlonia is increased.

The invention provides a breeding method capable of resisting wheat yellow mosaic disease, and relates to the technical field of a crop breeding method. According to the breeding method, Ningmai 9 which is high in yellow mosaic disease resistance and high in excellent character combining ability is taken as a male parent, and Ningmai 8 or Yangmai variety which is high in yield and wide in adaptation and has the yellow mosaic disease is taken as a female parent, The method comprises the steps of carrying out hybridization on the male parent and the female parent to obtain F1; breeding the F1 to produce F2, F3 and F4, selecting excellent single spikes of the F2 and the F3, and carrying out blend threshing; selecting excellent single spikes of the F4, separating the spikes for threshing, and sowing head progeny rows F5 in a disease nursery; carrying out wheat yellow mosaic disease resistance identification on the F5, and selecting the head progeny rows which are high in resistance and good in agronomic trait; then, sowing the harvested head progeny rows in the disease nursery to form spike lines F6; repeatedly identifying the disease resistance of all the spike lines, and selecting the excellent spike lines; sowing the excellent spike lines of the F6 to form an evaluation nursery, and selecting the good lines which are disease-resistant, good in quality and high in yield. According to the breeding method, excellent genetic recombination and additive effects which are supplemented by disease resistance, agronomic trait, quality character and the like are used for directional selection of multiple generations, so that Ningmai 16 and a batch of budding new lines which are disease-resistant, good in quality and high in yield are cultured; the new lines are high in yellow mosaic disease resistance and has the advantages of having scab resistance and being high in yield potential, prominent in special quality, and the like, thus having production application values.

The embodiment of the invention adopts the following technical scheme, i.e. a novel summer corn SRP class group selfing line breeding method. The method is characterized in that F1 generation can be formed by hybridizing every two of a P class group corn, an Reid class group corn and an S class group corn; three or two F1 generations are hybridized to form an SRP class group; the SRP class group is subjected to back cross breeding or complex hybridization to breed a selfing line. The selfing line bred by the SRP class group breeding method has the characteristics of dense-resistance, disease resistance, lodging resistance and high combining ability; grains are hard grains or semi-hard grains; the self yield is that the grain weight of single spike is about 100g; the selfing line has the characteristics of compact plant type, dense planting resistance, high temperature resistance, rain waterlogging resistance, high adaptability to bad environment, and the like.

The invention discloses a multifunctional single-spike rice threshing machine. The multifunctional single-spike rice threshing machine comprises a rack. A threshing chamber internally provided with a threshing roller, a receiving chamber, an air flow type separation discharge barrel and a driving mechanism are arranged on the rack, wherein the receiving chamber is internally provided with a rotating twisting piece, and the driving mechanism is used for driving the threshing roller and the rotating twisting piece to rotate. A feed hopper is arranged on the top of the threshing chamber, the receiving chamber is communicated with the bottom of the threshing chamber, and the air flow type separation discharge barrel is provided with a top outlet in the top, a bottom outlet in the bottom and a side face inlet in the side face. The side face inlet is communicated with the receiving chamber, the top outlet is connected with an exhaust fan through a pipeline, an outlet of the exhaust fan is connected with an impurity discharge opening, and the bottom outlet is connected with a discharge port. The multifunctional single-spike rice threshing machine has the advantages of being simple in structure, convenient to operate, small in size, low in weight, good in threshing quality, high in efficiency and the like.

The invention relates to a device for producing a fluid containing a radioactive constituent, the device comprising: a shielded chamber within which is located an isotope container housing a radioactive isotope, the shielded chamber including first and second fluid connections to opposing ends of the isotope container and a fluid conduit extending from each of the first and second fluid connections to a fluid inlet and a fluid outlet respectively characterised in that the fluid inlet comprises a single spike having a substantially circular cross-section, the spike being adapted to penetrate the rubber seal of a vial and the spike having two bores, the first bore extending from a first aperture adjacent the tip of the spike to a fluid connection with the fluid conduit and the second bore extending from a second, separate aperture in the spike to a filtering air inlet which including a polytetrafluoroethylene filteration disc.

The invention relates to a method of purification rejuvenation and screening variation of wheat varieties. The method comprises screening year by year, wherein in first-year screening, a single spike with imperfect or diseased grains is eliminated from the original population of a wheat variety to plant a head progeny row nursery; in the head progeny row nursery, excellent head progeny rows which are remarkably different from main characteristics of improved varieties, have strong disease resistance and good comprehensive property are kept; after excellent head progeny rows are ripe, the whole row of single spikes of the excellent head progeny rows are harvested, diseased or imperfect single grains are eliminated, and the screened excellent head progeny rows are taken as a corresponding primary spike line of the head progeny rows; the eliminated seeds in the head progeny row nursery are mixed and collected, and are threshed to serve as original seeds for original seed production in the next year; and the screening idea of the first year can be repeated in the second, third and later years for constant screening.

A spike for dispensing fluids from a flexible bag, wherein the spike includes multiple fluid channels which transfer liquids from the bag to an enclosed dispensing chamber and air from the enclosed chamber to the bag to permit and control fluid flow within the system.

The invention relates to a device for producing a fluid containing a radioactive constituent, the device comprising: a shielded chamber within which is located an isotope container housing a radioactive isotope, the shielded chamber including first and second fluid connections to opposing ends of the isotope container and a fluid conduit extending from each of the first and second fluid connections to a fluid inlet and a fluid outlet respectively characterised in that the fluid inlet comprises a single spike having a substantially circular cross-section, the spike being adapted to penetrate the rubber seal of a vial and the spike having two bores, the first bore extending from a first aperture adjacent the tip of the spike to a fluid connection with the fluid conduit and the second bore extending from a second, separate aperture in the spike to a filtering air inlet which including a polytetrafluoroethylene filteration disc.

The invention provides a rice breeding method. Synchronous induced identification of rice blast and rice black-streaked dwarf virus is realized. The rice breeding method comprises the following steps: inducing the rice blast by using MingShui scented rice; attracting laodelphax striatellus to suck and propagate the rice black-streaked dwarf virus by using fragrant blood glutinous rice 2315; selecting and breeding group seeds and performing mixed-breeding and mixed-planting with the MingShui scented rice; after bacteria inoculation and virus inoculation are induced, performing field selection and indoor identification, and finally, selecting a single spike which meets a breeding target and performing generation-adding to form a high-quality high-yield rice blast-resistant and rice black-streaked dwarf virus-resistant new variety. According to the method, the breeding of the high-quality high-yield rice blast-resistant and rice black-streaked dwarf virus-resistant new variety can be accelerated, the disadvantages that the rice appearance quality of a variety which is popularized in current production is relatively poor, and the resistance to the rice blast and the resistance to the rice black-streaked dwarf virus are weak are overcome, so that the quality and the commodity characteristic of rice are improved, the using amount of a pesticide can also be reduced, environment pollution is reduced, the economic benefit is improved, and meanwhile, the requirements on green sustainable development industries which are espoused at present are met.

The invention relates to a method of purification rejuvenation and screening variation of wheat varieties. The method comprises screening year by year, wherein in first-year screening, a single spike with imperfect or diseased grains is eliminated from the original population of a wheat variety to plant a head progeny row nursery; in the head progeny row nursery, excellent head progeny rows which are remarkably different from main characteristics of improved varieties, have strong disease resistance and good comprehensive property are kept; after excellent head progeny rows are ripe, the whole row of single spikes of the excellent head progeny rows are harvested, diseased or imperfect single grains are eliminated, and the screened excellent head progeny rows are taken as a corresponding primary spike line of the head progeny rows; the eliminated seeds in the head progeny row nursery are mixed and collected, and are threshed to serve as original seeds for original seed production in the next year; and the screening idea of the first year can be repeated in the second, third and later years for constant screening.

The invention belongs to the field of molecule breeding and relates to a molecule breeding method for cultivating rice with heat resistance which is increased heading and flowering stage and grain filling stage. The method includes the following steps: a middle indica rice two-line elite restorer lines restorer 9311 with the accession number CGMCC No.12532 is served as female parent, single-segment substitution lines, YJ-07-04-06 and YJ01-05-03, of Yuanjiang common wild rice are hybridized to obtain a F1 as parent, the female parent and the parent are intercrossed for one generation, backcrossed is performed for three generations with the recurrent parent, and then self-cross is performed for three generations to obtain the stable homozygous plant line BC3F4, and each generation is harvested with single spike; and the new rice line is identified and obtained by the molecule mark auxiliary selection combined with the phytotron simulation high temperature stress. Yuan ye no.3 with substantial heat resistance of the rice heading flowering stage and grain filling stage is cultivated by utilizing the method. The character of the target is selected through the molecule mark auxiliary, and the heat resistance restorer of the heading and flowering stage and grain filling stage can be rapidly and efficiently cultivated in 3-4 years.

The invention discloses a cultivation method of sowing wheat following rice around winter solstice in sand and moisture soil region in northern Jiangsu. The method comprises the following steps: (1) cutting up straw and retuning all chopped straw to fields; (2) applying enough base fertilizer and increasing phosphorus and potassium fertilizer; (3) selecting a large-spike springness variety and appropriately adding sowing quantity; (4) carrying out rotary tillage and sowing deep taking advantage of moisture in the soil; (5) pressing with strong power after sowing and when the moisture in the soil is appropriate; (6) digging internal and external canal systems for the wheat fields; (7) separately topdressing fertilizer to the saplings according to sapling growth and rain; (8) re-applying jointing and booting fertilizer; (9) timely preventing and controlling diseases, insect pests and weeds. The cultivation method aims at the wheat following rice delayed to be sowed around the winter solstice in the sand and moisture soil region in the north of northern Jiangsu main irrigation canal of Jiangsu province, and realizes a full stand and strong seedlings at one sowing; the heading period of the cultivated wheat comes three days in advance, the spike number is enough, the spike size is increased and the single spike weight is improved, so that the per unit area yield is further guaranteed to be stable and above 400 kg / mu.

The embodiment of the invention adopts the following technical scheme, i.e. a novel summer corn SRP class group selfing line breeding method. The method is characterized in that F1 generation can be formed by hybridizing every two of a P class group corn, an Reid class group corn and an S class group corn; three or two F1 generations are hybridized to form an SRP class group; the SRP class group is subjected to back cross breeding or complex hybridization to breed a selfing line. The selfing line bred by the SRP class group breeding method has the characteristics of dense-resistance, disease resistance, lodging resistance and high combining ability; grains are hard grains or semi-hard grains; the self yield is that the grain weight of single spike is about 100g; the selfing line has the characteristics of compact plant type, dense planting resistance, high temperature resistance, rain waterlogging resistance, high adaptability to bad environment, and the like.

The invention discloses an identification method for rice grain sterility caused by high temperatures. The method comprises steps as follows: the humidity of a manual climate box is 70%-75%, and the mean daily temperature of high-temperature treatment is 33.0 DEG C; the mean daily temperature of contrast treatment is 27.0 DEG C; potting planting is adopted for rice; plants which ear and bloom in the same period are selected; high-temperature relative fructification is used as an identification index of high-temperature varieties; the mean fructification percentage of spikelet blooming on marked spikes during high-temperature treatment of the manual climate box is the high-temperature fructification percentage, and the mean fructification percentage of spikelet blooming on single spikes under the contrast temperature of the manual climate box is the contrast fructification percentage. The manual climate box is adopted, the reasonable temperature identification index is established, different high-temperature resistant rice varieties are screened out with certain cultivation management measures, a variety identification and heat damage evaluation method is provided for coping with rice high-temperature heat damage caused by climate warming, and the technical support is provided for reasonable layout of rice varieties and high-temperature heat damage control.