56results about How to "Shortened childhood" patented technology

The invention relates to a method for rapidly cultivating a new grape variety. The method for cultivating the new grape variety with excellent traits aims at shortening the crossbreeding time. According to the method, by combining the characteristics of high-quality fruits of a variety with Xinjiang native characteristics, namely white Munake grapes, and integrating the special rose fragrance of aMelissa grape variety and a flame seedless grape variety, the technical problems of long periodicity and low occurrence frequency of required traits by means of grape crossbreeding methods are solved, and the new grape dominant variety is invented. The method adopts a general crossing technology and comprises the technical steps of crossing, wherein a, pollen of male parents is collected, b, emasculation of female parents is conducted, and c, crossing pollination is conducted; cross ovule and seedling culture, wherein d, ovules are taken out, e, the ovules are cultured, f, the ovules are cut,g, the ovules are subjected to germination culture, and h, seedlings are cultured; propagation expanding and transplanting, wherein i, propagation expanding is conducted, j, seedling hardening is conducted, k, transplanting is conducted, and l, top grafting is conducted; fruit quality identification. The method uniquely adopts a high-nutrition seedling stage management mode, integrates a breedingmeans combining ovule rescue and top grafting and shortens the cycle of traditional grape cross breeding, and the cultivated new grape variety has target traits.

The invention discloses a method for shortening the juvenescent phase of fruit trees, which comprises accelerating germination, seeding, port transferring, seedling adaptation, field planting and training and pruning. Adopting the technology in the project, the peach seedling tree can pass the juvenescent phase in the very year of seeding and enter the adult vegetative phase, while the seedling trees of apple and chestnut, etc., can pass the juvenescent phase in the second year after the seedling tree seeding and enter the adult vegetative phase. Shortening the juvenescent phase of seedling trees of fruit crops has an important significance for shortening the breeding cycle of fruit trees and promoting the career development of fruit trees.

The present invention discloses a cultivating method with Carya cathayensis stock as scion, the procedure of which is to establish a seedling nursery of Carya cathayensis stock; the Platycarya strobilacea, Carya cathayensis, American Carya cathayensis or Hu nan Carya cathayensis are adopted as the stock, and the growing branch of the bearing tree of Carya cathayensis is adopted as the breeding mother tree for scion and cutting; the bed seedling of Carya cathayensis or the Carya cathayensis with the diameter at ground level is equal to or larger than one point seven centimeter and transplantedat the beginning of November of the previous year before scion and the hardy Carya cathayensis with the growth of one to two years are chosen as the stock, and the spacing in the rows and spacing between rows is not less than twelve multiplied twenty five centimeters; in the period from 10th November in the previous year to 31st January then, the hardy breeding branch with full bud, short intersegment and growth of one or two years is collected from the scion mother tree in the cutting orchard as the scion, and is arranged after collection in the shadow for twelve hours to thirty six hours, and is sealed and packed in a plastic film, and is stored into a refrigerated storage at 4 DEG C; when thirty percent of stock seedling starts to sprout in the cutting orchard or in the transplanted ground, the scion is completed within two or three weeks. The technical proposal can dwarf the tree of the Carya cathayensis, shorten the childhood period and fruit ahead of time.

The invention discloses a precursor gene of hickory micro159a. The sequence of the precursor gene is: (a) a nucleotide sequence shown as SEQ ID NO:1, or (b) a nucleotide sequence which has at least 70percent, at least 75 percent, at least 80 percent, at least 85 percent, at least 90 percent, at least 95 percent, at least 96 percent, at least 97 percent, at least 98 percent or at least 99 percentof homology with the nucleotide sequence shown as SEQ ID NO:1 and can be used for generating the hickory micro159a after cutting. The application of the precursor sequence of the hickory micro159a isexpected to advance the plant flowering artificially. Specifically, the application of the hickory micro159a is expected to regulate the flowering period of hickory, shorten the childhood of hickory and advance flowering and fruiting.

The invention provides a cultivation method of a mandarin nucellus seedling nascent system. The method comprises the following steps of: screening varieties, namely selecting a mandarin nucellus seedling; performing top grafting; biologically preventing and controlling disease and insect damages in combination with matched cultivation, and the like. By the cultivation method, a tangerine nucellusseedling nascent system can be selected and cultivated, the conventional varieties with local characteristics are improved, mandarin quality is improved, competitive power is enhanced and a better economic benefit is achieved.