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163results about How to "Compact plant" patented technology

Breeding method for black and white sweet glutinous hybrid maize

The invention discloses a breeding method for black and white sweet glutinous hybrid maize. The breeding method for black and white sweet glutinous hybrid maize comprises the steps of selecting ultra-sweet maize, glutinous maize, a common high yield multi-resistance maize-inbred line and the like from different regions to be equivalently mixed, openly pollinating the maize, establishing a basic group A, selecting black glutinous maize germplasm from different regions to be equivalently mixed, openly pollinating the maize, and establishing a basic group B; then carrying out recurrent selection to the properties of seeds of the maize to respectively form a white sweet glutinous maize recurrent selection group A and a black sweet glutinous maize recurrent selection group B, obtaining a serious inbred line through multi-generation inbreeding, and screening a white sweet glutinous maize inbred line 4587 and a black sweet glutinous maize inbred line 3303 through combination ability measurement and cross combination quality identification to obtain 4587 X black 3303 hybrid. The breeding method can ensure both the glutinous and sweet genes of a parent inbred line and the hybrid of the parent inbred line, and also ensure the appearance quality, the favorable edible quality, the stability and the consistency of the hybrid. Moreover, the seeds of the maize are black and white.
Owner:NANJING AGRICULTURAL UNIVERSITY

ZmCLA1 gene capable of controlling sizes of included angles of maize leaves as well as method and application of ZmCLA1 gene in breeding high-density-tolerant maize

ActiveCN104480121ASeparation without errorCompact plantPlant peptidesFermentationCandidate Gene Association StudyForward genetics
The invention discloses a ZmCLA1 gene being capable of controlling the sizes of the included angles of maize leaves and having nucleotide sequence as shown in SEQ ID NO: 1. By a forward genetic method (in which by building a mapping population, the included angle of maize leaves is subjected to QTL primary positioning and fine positioning), candidate genes are unmistakably separated and the function of the ZmCLA1 gene in plants is not reported; the invention provides the ZmCLA1 gene capable of controlling the sizes of the included angles of maize leaves and a protein encoded by the ZmCLA1 gene. The ZmCLA1 gene has important value for the theoretical study on analysis of molecular mechanism for forming the included angles among maize leaves, the ZmCLA1 gene containing the sequence as shown in SEQ ID NO: 1 is modified and inoculated onto maize plants so that the maize breeding material which has compact plant type and small included angles of leaves can be created and the ZmCLA1 gene has important practical significance for breeding maize.
Owner:HENAN AGRICULTURAL UNIVERSITY

Method for breeding rice vairety with polymerized low-glutelin and rice stripe-resistance

The invention discloses a breeding method of a rice species combining the properties of low glutelin and rice stripe disease resistance, which pertains to the field of rice breeding. W3660 is taken as a female parent and Zhendao 88 is taken as a male parent for hybridization; and since F2 generation, a single plant with a main ear having 12 grains, the holoprotein SDS-PAGE protein band pattern of which is in line with W3660 holoprotein band pattern, is selected for planting; WW1 and R15 marks are used for assisting the selection; by combining the field inoculation and manual inoculation certification of the plants with rice stripe disease resistance, a plant strain which has rice stripe disease resistance and is characterized in that the SSR fingerprint has a low glutelin characteristic band 237bp marked by WW1 and a rice stripe disease resistance characteristic band 363bp marked by R15, and the growth duration, plant height, and shape and characteristics of the plant leaves are identical with that of the Zhendao 88 is selected and named as W1721. After determination, the new rice variety W1721 has low glutelin content and less than 4% of the absorbable protein (including albumin-globulin and glutelin) content and has rice stripe disease resistance.
Owner:NANJING AGRICULTURAL UNIVERSITY

Breeding method of photo-thermo-sensitive genic male sterile line of quality rice

The invention discloses a breeding method of a photo-thermo-sensitive genic male sterile line of quality rice and belongs to the field of plant breeding technology. The method comprises steps as follows: (1) selecting the photo-thermo-sensitive genic male sterile line Guangzhan 63S as a female parent, taking intermediate material Yandao 229 of routine medium indica rice which has a tight plant type, good lodging resistance, high quality and high resistance to rice blast as a male parent, and carrying out hybridization and combining and generation-adding to harvest F1 seeds; (2) planting F1 seeds and carrying out F2 large group selection, selecting superior individuals with good photo-thermo-sensitive genic male sterile characteristic, high quality and tight plant type at each generation starting from F2. Until self-crossing for six generation namely F6 generation, the photo-thermo-sensitive genic male sterile line with tight plant type, high quality, high resistance to rice blast and early-maturing medium indica type is bred and named as Yan 166S. A new combination of two-line indica hybrid rice prepared by the above bred photo-thermo-sensitive genic male sterile line can better solve the disadvantage of poor lodging resistance of the new combination of the two-line hybrid rice prepared by the indica-type photo-thermo-sensitive genic male sterile line Guangzhan 63S.
Owner:JIANGSU COASTAL AREA AGRI SCI RES INST +1

Breeding method of early-ripe and disease-resistant broccolini

ActiveCN103168681ANormal inbred lineGood production capacityPlant genotype modificationEarly generationShoot
The invention relates to a breeding method of crops, and particularly to a breeding method of broccolini, belonging to the technical field of plant breeding. The breeding method has the advantages that 1. the male sterility line belongs to cytoplasmic male sterility and maternal inheritance, and is stable in sterility, the sterile plant rate and the sterility are 100 percent, nectary is developed, more nectars grow, stigma is normal, flowering and fruiting characters are good, and a seedling does not yellow under the condition of low temperature and can not deteriorate after multi-generation backcross, transform is easy, growth is vigorous, and combining ability is strong; 2. a transformation early generation sterile line is stronger in growth vigor in comparison with a maintainer line and has the advantage of interspecies cross; 3. a later producing shoot of the transformation early generation sterile line is stronger than that of the maintainer line, and thus the transformation early generation sterile line material is early planted by 5 days in comparison with a backcross male parent; 4. F1 is prepared by using the sterile line, the seed yield is high, the seed producing cost is low and the labor is saved; and 5. a new variety prepared by using the sterile line is strong in disease resistance, and is remarkable in production increasing.
Owner:安徽省凤阳县御膳油脂有限公司

Nutritional type ginseng growth regulator

InactiveCN101036467ACompact plantIncrease towards luminosityBiocidePlant growth regulatorsNutrientGreen fruit
A nutrient ginseng growth regulator belongs to modern Chinese traditional medicine field. Because the ginseng is a perennial perennial plant, if the ginseng has grown for sever years, the soil condition will deteriorate, and the ginseng will be in poor, thereby reducing the yield and the quality of the ginseng, accordingly, for solving said problems, the nutrient ginseng growth regulator is provided. In the invention, by applying the nondurable nutrient elements comprising P, K, Fe, B, Mn, Cu, Zn, and Mo and the plant growth regulator ethephon+6-BA on the leaves of the ginseng once at the final stage of the ginseng leaf expansion, once at the green fruit stage, and once at the fruit red ripe final stage, the growth of the ginseng can be regulated and promoted, thereby improving the yield and quality. The growth regulator can be used conveniently and the cost thereof is low.
Owner:JILIN AGRICULTURAL UNIV

Breeding method of corn selfing line

The invention discloses a breeding method of a corn selfing line and belongs to the technical field of corn breeding. The breeding method includes: using a corn line NH6249 as a basic material; obtaining the corn selfing line NH6249-1 after selfing of several generations. The corn selfing line NH6249-1 obtained by the breeding method has the advantages of high matchability, high yield, high quality and multi-resistance, is suitable in mechanical production and can be matched and bred to obtain a basic material of new corn varieties having excellent performances like high matchability, high yield, high quality and multi-resistance.
Owner:MAIZE RES INST GUANGXI ACADEMY OF AGRI SCI

Paphiopedilum new variety 'yo-yo paphiopedilum' group rapid reproduction method

The invention discloses a paphiopedilum new variety 'yo-yo paphiopedilum' group rapid reproduction method, and relates to a biological engineering plant tissue culture reproduction method. The method includes the following steps of: 1, artificial cross pollination; 2, sterile sowing and protocorm formation stage; 3, proliferation and differentiation culture stage; 4, seedling strengthening and rooting stage; 5, seedling hardening and transplanting. The 'yo-yo paphiopedilum' combines the excellent traits of parents, has the advantages of being compact in plant type, unique and elegant in flower shape, attractive in flower color, easy to cultivate, up to 50 days in average flowering stage and the like, and avoids the disadvantages of being single in flower amount and too long in scape which is prone to be in lodging and broken. According to the method, the seed germination rate and the flowering rate are high, and the cultivation period is 3-4 years. The method is a high efficiency test tube reproduction method for obtaining a large number of 'yo-yo paphiopedilum' seedlings, and has the advantages of being high in germination rate, fast in seedling formation, good in seedling quality, strong in growth potential and the like, can obtain consistent test tube seedlings, and provides a large number of the seedlings in a short time so as to better protect wild resources.
Owner:贵州省林业科学研究院

Selective breeding method of hybrid rice of late blooming season long-grained rice restoring line and subspecies

The present invention relates to selective breeding method of hybrid rice. The late blooming season wide affiliation long-grained rice restoring line CH59 which excellent agronomic character is selectively bred through hybridizing and generation adding the restoring line G230 as female parent and the restoring line Chuanhui-58 as female parent, the blooming season characteristic identification on the F2 group, eliminating the plants with early blooming season, further blooming season characteristic identification, agronomic character screening, resistance and rice quality identification, fertility restoring capacity determination and affinity identification. By using japonica rice sterile line Chuanjiang 16A and Chuanjiang 12A as female parent and the restoring line CH59 as male parent, the hybrid rice Chuanyou 59 and Chuanyou 259 are bred.
Owner:CHINA NAT RICE RES INST

Breeding method of corn hybrids

The invention belongs to the technical field of corn hybridization, and discloses a breeding method of corn hybrids. The method is mainly technically characterized by comprising the following steps: firstly, establishing a heterosis group and a heterosis mode, hybridizing a public selfing line Q319 and a local germplasm 81162, adopting a pedigree method, conducting selfing for six generations, selecting a superior line, cultivating a selfing line Heng H1027 which belongs to a PB group*Reid group, dividing the selfing line Heng H1027 into a group A, introducing a selfing line PH4CV variant to backcross with PH4CV, then conducting selfing for five generations to breed a selfing line Heng HC705, and dividing a pedigree of the heterosis group into an Iodent group which belongs to a male parent group B; performing test-matching and grouping on a newly introduced germplasm material, then performing line selection, then carrying out circulating line selection, enabling F1 generation inheritable characters to be stable, carrying out selfing or improved line backcrossing on single plants, and realizing segregation of F2 or BC1 generation characters; and planting ear rows in the F3 generation, performing phenotype selection and inter-group test-matching rotation selection on the segregated ear rows and individuals, and finally obtaining the new corn hybrid variety. The method has the advantages of early maturity, short stems, lodging resistance and suitability for mechanical grain harvesting.
Owner:DRY LAND FARMING INST OF HEBEI ACAD OF AGRI & FORESTRY SCI
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