91 results about "Hermaphrodite" patented technology

The invention relates to a method for cultivating a new variety of hybridized and backcrossed Argopecten purpuratus. The method is characterized by comprising the following steps of: selecting excellent individuals in a hybridized first filial generation family or group of Argopecten irradians and the Argopecten purpuratus; backcrossing the excellent individuals with the Argopecten purpuratus to establish a backcrossed family or group; selecting hermaphroditic excellent individuals with good representation in the backcrossed family or group; and continuously cultivating at least third generations of self-bred families to obtain the new variety of the hybridized and backcrossed Argopecten purpuratus having the advantages of steady heredity, rapid growth, large individuals and wide temperature tolerance range. According to the method provided by the invention, the new variety can be cultivated in sea areas in the north, such as Qingdao, Dalian and the like; and, compared with the Argopecten irradians, the yield at the same year is increased by more than 30%.

A seismic cable coupling comprising connector body, a coupling ring is rotatably mounted on the connector body. The coupling ring includes a ring body having a first longitudinal projection and a second longitudinal projection, the first longitudinal projection having an interior surface including a first angled groove, the second longitudinal projection having an exterior surface including a first raised stud. The coupling ring is a hermaphrodite coupling ring that mates with a coupling ring having a substantially identical ring body.

The invention discloses technology for culturing a unisexual hybrid scallop by utilizing a purple scallop and a bay scallop, which relates to shellfish breeding technology for aquiculture. The technology comprises the steps of: utilizing two congeneric hermaphroditic scallops with same chromosome number; ripening the two scallops respectively to achieve the synchronous maturity; and then synchronously inducing the two scallops to spawn and spermiate; and acquiring sperms and ovum of the two scallops respectively for interspecies cross-insemination to culture the unisexual hybrid scallop. Obtained offsprings have separated sexes, have males and females, and also have hermaphroditic individuals; ovum from female individuals in the hybrid offsprings can be inseminated by any parental sperm and normally grow; and the hermaphroditic individuals in the hybrid offsprings can be used for quickly purifying a strain.

The invention relates to a papaya full exposure fast cutting propagation method, characterized in that, hermaphrodite carica papaya tree is used as female parent, an upper part of the tree is cut from the lowest part, then the female parent is stubbed and transported to a field gene bank, a root part is processed by radication agent containing 6-benzyl adenine 0.05-0.2 mg, indolebutyric acid 0.5-1.0 mg per liter; a tree body is sprayed with polysulfide suspending agent and bud advancing agent containing 6-benzyl adenine 5.0-10.0 mg and triiodobenzoic acid 0.5-1.0 mg, causing a parent tree to come out lateral buds, mowing down the lateral buds as root taking agent soaked for cutting shoot; a base part is bedaubed with rootone containing naphthylacetic acid 50-100 mg and indolebutyric acid 100-200 mg per kilogram, inserted to a planting screen, transplanting to the nutrient cup after the shoot to be inserted comes out adventitious roots and new leaves, then permanently planted in the field. The invention is small in investment, short in time, tree percent is more than 80%, root taking rate and survival rate reach more than 85%, thereby providing effective approach for meeting with the requirement of the germchit market.

The invention relates to a construction method and application of the maintainer line of hybrid scallops of purple scallops and Argopecten irradians concentricus. The maintainer line is Argopecten irradians concentricus strains capable of enabling the generations of the male sterility line of the hybrid scallops of the purple scallops and the Argopecten irradians concentricus to have the characteristics of male sterility and ovum fertility, and the hybrid scallops of the purple scallops and the Argopecten irradians concentricus are the hybrid generations of purple scallop ova and Argopecten irradians concentricus sperms. The construction method comprises the steps that firstly, a large number of the first filial generations of the hybrid scallops of the purple scallops and the Argopecten irradians concentricus are constructed, and male sterile individuals are found out from the first filial generations for breeding of the male sterility line; then sperms of male parent Argopecten irradians concentricus are used for continuous backcross, and the combinations of the male sterility line-maintainer line with all generations of male sterility individuals are respectively bred; finally, the male sterility line parent scallops are produced through hybridization of the male sterility line and the maintainer line, and the maintainer line is used for producing commodity offspring seeds of the hybrid scallops of the purple scallops and the Argopecten irradians concentricus. According to the construction method and application, the maintainer line of the scallops is firstly built in animals, and the obstacles of autofertilization of hermaphrodite scallops in the hybridization process are effectively eliminated.

The invention provides a method for setting up dioecism type mussel inbred line which consists of selecting hermaphroditic special individuals from gonochorite seashells, establishing and cultivating selfing lines through the strategy of self crossing, the invention can be applied for accelerating the breed choosing and cultivating speed of gonochorite shells.

The invention discloses an efficient female method for industrial hemp plants. The efficient female method comprises the steps of treating industrial hemp female plants by using nano-silver colloid spray, inducing the industrial hemp female plants to be converted into hermaphrodite plants, differentiating male flower buds, generating fertile pollen, and then freely pollinating and setting seeds to obtain all-female industrial hemp seeds. According to the efficient female method, nano-silver colloid is adopted to induce the plants, the female hemp plants are converted into the hermaphrodite hemp plants, the female plants are forced to generate the fertile pollen to pollinate other female plants, and the pure female (or all-female) industrial hemp seeds with the purity of 96% or above can be obtained. The amount of required colloidal silver solution is small, the induction cost is reduced, the procedure is simplified, and the induced feminization success rate is high and stable.

This technology relates to measuring tools, and provides a linear size measuring tool, especially a direct reading integrated inner and outer calipers, which have two states of inner clamp and outer clamp, including a pair of clamp arms that are symmetrically arranged and cross-hinged by rotating pins. One side of each pincer arm is a clamping section, and the other side is a reading section; at the end of the clamping section, there is a chuck that can adjust the angle between the clamp arm and the clamp arm in a plane determined by a pair of clamp arms. The two chucks with pointed fronts are arranged symmetrically. When the chuck is inclined inward, it is an inner card; ;When the chuck tilts inward to the limit position, the included angle between the chuck axis and the clamping segment axis is 12°; when the chuck tilts outward to the limit position, the included angle between the chuck axis and the clamping segment axis is 25°.

The invention discloses a hermaphrodite laver dihaploid colony building method. The method comprises taking hermaphrodite laver thalluses (gametophytes) with obvious color difference as cross parents, carrying out mixed cultivation on father and mother thalluses with antheridiums, collecting carpospores, selecting the carpospores with germ tubes, carrying out single culture to obtain protonema (sporophore), carrying out induction to obtain conchospore of the protonema, carrying out culture to obtain macroscopic F1 thalluses, wherein if 90% or more of the thalluses contain amphiphilic color chimeras, the thalluses are used for building of a dihaploid colony, separating all color blocks of the four-color block chimera, acquiring monospores or single isolated cells of each one of the color blocks, carrying out culture to obtain macroscopic thalluses, carrying out single thallus culture and autofertilization to obtain pure thallus of each one of color blocks of the four-color block chimera and building a dihaploid colony. The method solves problems of hermaphrodite laver dihaploid colony building and lays the foundation of genetic linkage map construction.

The invention relates to a construction method and application of the restorer line of hybrid scallops of purple scallops and Argopecten irradians concentricus. The restorer line is Argopecten irradians concentricus strains capable of enabling the generations of the male sterility line to restore the characteristic of male sterility, and the hybrid scallops of the purple scallops and the Argopecten irradians concentricus are the hybrid generations of purple scallop ova and Argopecten irradians concentricus sperms. The construction method comprises the steps that excellent individuals in the male sterility line are selected, different varieties of Argopecten irradians concentricus are used for continuous backcross until all generations are hermaphrodite, and the restorer line of the male sterility line is obtained; finally, the restorer line and the corresponding male sterility line are used for hybridization to produce commodity offspring seeds of the hybrid scallops of the purple scallops and the Argopecten irradians concentricus. According to the construction method and application, the restorer line of the male sterility liner is firstly built in animals, the obstacles of autofertilization of hermaphrodite scallops in the hybridization process are effectively eliminated, and the yield of the produced hybrid scallops of the purple scallops and the Argopecten irradians concentricus is improved by more than 42 percent relative to that of the Argopecten irradians concentricus in the same year.

The present invention provides an all hermaphroditic papaya variety and their seeds, pollans, tissue cultures, parts of plant and the method for producing them.

The invention relates to an establishing method of a Cnobilis inbred line, which can quickly purify the genome of the Cnobilis, so as to accelerate variety breeding. Individuals containing female and male germ cells and appearing as female, namely hermaphrodites, are selected through micrographic examination, an egg is fertilized by sperm in the same individual through induced parturition hastening or dissection fertilization, the amount of the sperms are increased or reduced artificially by taking measures to artificially interfere and adjust the relative proportion of the male and the female gametes in the water, and hatching, breeding and cultivating are carried out according to the ordinary technology of the species, so as to establish the inbred line. The establishing method of the Cnobilis inbred line is simple to operate, requires no special chemical reagent, and is easy to popularize and apply.

The invention relates to an establishment method and an application of a violet black hybrid scallop restorer. The restorer is a violet scallop system which enables the male sterile line offspring to restore the male fertile feature, wherein the violet black hybrid scallop is a hybrid offspring of Argopecten irradians concentricus eggs and violet scallop sperms. The establishment method comprises the steps of selecting excellent individuals in the male sterile line, continuously backcrossing different violet scallop sperms, and obtaining the restorer of the male sterile system until all offspring are hermaphrodite; and finally hybridizing the restorer with corresponding male sterile line to produce the violet black hybrid scallop commodity offspring seed. The male sterile restorer is firstly established in animals, the obstacle of autofertilization in the hybridization of the hermaphrodite scallops can be effectively overcome; the annual yield of the produced violet black hybrid scallop is improved by more than 45 percent than that of the Argopecten irradians concentricus.

Disclosed is a method for production of hybrid seeds of laver filament pure lines characterized in that the method comprises the steps of screening individuals with dissimilar sex character from feral population, scrubbing with absorbent cotton balls, filtering excess seawater, cutting down 1-2mm squared algae slices on the base portion of the hermaphroditic algae, confirming that all the cells are nurse cells, supersonic cleaning, culturing under the condition of 10-14 hours light lamination, and separating single algae for expansion.

A sex identification method for veneridae shellfish parents comprises the following steps: preparing a syringe with a syringe needle, preparing a to-be indentified veneridae shellfish, finding the intersection point of the lateral ligament end and the shell edge and taking the point as an acquisition point, stably handling the to-be indentified veneridae shellfish by using one hand, and using the other hand to align the syringe needle of the syringe with the acquisition point, and enabling the syringe needle to have an angle of 30-60 degree with the tangent of the shell edge, penetrating the syringe needle into the sexual gland position of the to-be indentified veneridae shellfish through the acquisition position, extracting a sample, putting the sample on slide glass with seawater, microscopically observing the form of the sample, if the sample is divergent in seawater and has circular or pear-shaped ova, identifying the indentified veneridae shellfish is female, if the sample is in a smog state in seawater and has polliwog-shaped sperms, identifying the indentified veneridae shellfish is male, and if the sample comprises circular or pear-shaped ova and polliwog-shaped sperms, identifying the indentified veneridae shellfish is hermaphroditic.

Disclosed are a hybrid populous lasiocarpa and a planting method thereof. The hybrid populous lasiocarpa is obtained by hybridizing and breeding Chinese white poplar and European red poplar and named as environmental-protection Chinese populous lasiocarpa. The planting method comprises the steps of seedling, cottage, transplanting in forest establishment regions, maintenance and forest establishment. The e environmental-protection Chinese populous lasiocarpa has a timber cycle of 3-6 years and has the advantages of being hermaphrodite, flowerless, seedless, saline-alkaline-resistant, wind-resistant, disease-resistant, pest-resistant, wide in application range, rapid in growth, harmless to air and soil, high in timber yield and the like, thereby being capable of serving as environmental greening, city and road border tree or windbreak as well as economic tree for large-area mountains or hills. The good environmental effects, the high timber yield, the good material quality and the comprehensively-applicable economic value can generate high social and economic benefits.