41 results about "Seedless fruit" patented technology

The present invention provides methods and DNA constructs for the genetic engineering of plant cells to produce plants which produce substantially seedless fruit in the absence of exogenous growth factors (auxins or cytokinins) and in the absence of pollination. The substantially seedless fruits produced by the methods described herein are about the size of wildtype seeded fruit (or somewhat larger) and these fruits are equal to or superior to the wildtype seeded fruit with respect to solid content and flavor. The seedless fruits of the present invention are produced in transgenic plants which contain and express auxin or cytokinin biosynthetic genes, e.g., tryptophan oxygenase or isopentenyl transferase coding sequences expressed under the regulatory control of GH3 or AGL promoter sequences directing preferential or tissue specific expression of a downstream gene in the ovaries or developing fruit.

The invention relates to a non-polluted grape culture technique of seedless grape; the main steps are as follows: a first step: conventional management is carried out in prophase; a second step: from 15 days before blooming to 1 week before blooming, 15-20mg/L of GA3, 10-25mg/L of 4-CPA, 1g/L of KH2PO4 and an NO.1 synergist are adopted for dipping fruit cluster; a third step: 10-20 days after blooming, 15-20mg/L of GA3, 25mg/L of 4-CPA, 1g/L of KH2PO4 and an NO.2 synergist are adopted for dipping fruit cluster; other management is operated according to conventions. By carrying out seedless treatment on seedy grape, the method can delay the formation of grape megaspore, affect the normal fertilization process, and promote seed abortion to form parthenocarpic seedless fruit; meanwhile, the method can remarkablely reduce pesticide dose, and ultimately realize the purpose of pollution-free and seedless cultivation, thus having remarkable social and economic benefits.

A method of growing fruit such as papaya commercially, the method including the use of a structure having a covering adapted to permit sufficient light, nutrients and moisture, while substantially precluding access by potentially virus-carrying insects; together with seeds that are obtained, germinated, planted, and grown in a manner that permits plants to grow and bear seedless fruit suitable for harvest.

The invention discloses a method for increasing the yield of seedless sunshine rose grapes. The method comprises the following steps that (1) spica shaping is conducted; (2) seedless fruit retention treatment of spica is conducted, specifically, as for the seedless fruit retention treatment, the spica is soaked in 20% gibberellic acid with the concentration of 20-25 mg/L and 0.1% forchlorfenuron with the concentration of 2-2.5 mg/L; (3) fruit cluster expansion treatment is conducted, specifically, as for the fruit cluster expansion treatment, fruit clusters are soaked in 20% gibberellic acid with the concentration of 20-25 mg/L and 0.1% forchlorfenuron with the concentration of 2.5-3.75 mg/L; (4) after cluster fixing is finished, fruit grains are thinned in time; (5) after fruit grain thinning is finished, pesticide is sprayed in time, and special bags for grapes are sleeved; and (6) harvesting is conducted after the grapes are mature. According to the method, in the fruit cluster expansion stage, cluster soaking agents are changed, gibberellic acid in the prior art is replaced with a combined preparation of gibberellic acid and forchlorfenuron, and the per mu yield of the grapes is increased.

The present invention provides genes and encoded proteins that are involved in meiocyte formation during the growth of plants. The transformation of plants and plant-related hosts with these genes in altered or unaltered form, or the mutation of these genes in endogenous form, renders a plant capable during growth of bearing seedless fruits and/or pollenless flowers. The invention further provides methods of producing transgenic plants which are capable of bearing seedless fruits and/or pollenless flowers.

Disclosed is a pulp type candy and its production method which comprises interior fresh fruit pulp and external coated confectionery, and the preparing method comprises the following steps, cutting the cleaned seedless fruits into small blocks, immersing, removing moisture, coating a layer of natural shellac, placing white sugar into pot and boiling on fire, carrying out thermal insulation to obtain confectionery extract, coating confectionery onto the fruit blocks uniformly and drying.

The invention provides a method for producing diploid seedless watermelons. A diploid strong-female watermelon plant and a tetraploid pollinator watermelon plant are placed under the same regional cultivation conditions; when female flowers of the diploid strong-female watermelons bloom, the female flowers can only have contact with pollen of pollinator tetraploid male flowers; therefore, seeds can not develop, but fruits can, so as to form diploid seedless fruits. The diploid watermelons are of hybrid varieties or conventional varieties, and have the characteristic that the male flowers within at least twenty sections do not develop at all; the female flowers of the diploid watermelons can develop and form watermelon fruits under the stimulation of tetraploid watermelon male-flower pollen, while the seeds do not develop; and in addition, residual seed shells are white, thin and soft, and is less than 12 millimeters long. The tetraploid watermelons are of the hybrid varieties or conventional varieties, and under the conditions of artificial or insect transmission, the pollen of the tetraploid watermelons can stimulate the diploid watermelons to form the seedless fruits.

The invention relates to application of peach-auxin-primary-response-factor Ppa011935m gene to tomatoes. The Ppa011935m gene is obtained after cloning from peach fruits, and is transferred into the tomatoes and applied, and the result shows that the plant type of the tomatoes can be changed through Ppa011935m gene overexpression, the internode of the tomatoes extends, the plant height of the tomatoes is increased, the fruit shape of the tomatoes is changed, acuminate fruits are formed, the quantity of seeds in fruits is decreased, and even seedless fruits are formed. Meanwhile, Ppa011935m transgene promotes releasing of fruit ethylene, and the fruits are matured in advance. The invention provides a method capable of changing the plant type of the tomatoes, the seed quantity and promoting fruit maturation, and the method includes the step that the Ppa011935m gene is introduced into the tomatoes, and correlated characters of nutrition growth and reproductive growth of the tomatoes can beeffectively changed.

The invention discloses a physalis alkekengi linn calyx refined sodium naphthalene acetate for producing biopesticide and a preparation method thereof, and the preparation method comprises the following steps: A, weighing powdered pepper, then adding the pepper into water for soaking, adding formyl, polypropylene glycol, soybean oil, corn oil, tetramycin, salt, dietary alkali, sulfur and ethylene glycol into water, and stirring uniformly; and uniformly stirring to obtain the insecticide. The physalis alkekengi persistent calyx extract and the pimacol are arranged, so that the fertilizer has the effects of regulating growth, promoting rooting, sprouting and flowering, preventing flower and fruit dropping, forming seedless fruits, promoting early maturing, increasing yield and the like, meanwhile, the drought resistance, cold resistance, disease resistance, salt and alkali resistance and dry and hot air resistance of plants can be enhanced, and the advantage of promoting crop growth is achieved; when the pesticide is sprayed on crops to kill insects, the crops can be killed, meanwhile, the growth of the crops can be promoted, and the yield of the crops is increased.

To provide a novel technique for enhancing characteristics of a plant without using a gene recombination technique. A plant is treated with a freezing step of freezing a plant tissue, a thawing step of thawing the frozen plant tissue, and a generating step of generating a plant from the thawed plant tissue.

The invention discloses a method for inducing kiwi fruit 'miliang-1' variety to produce seedless fruit through parthenocarpy and belongs to fruit tree growth of the technical field of agriculture. Mixed liquid in the method mainly contains four effective components of gibberellic acid, 2,4-D, amino acid and calcium with concentration being 60mg/l, 5mg/L, 100mg/L and 160mg/L respectively. The method includes that spray time is from 8-10 o'clock in sunny mornings when dew is dried in blow (in rainy days, the spray time is performed any time after rain stops and leaves are dried in blow) in the flowering phase of maliang-1 kiwi fruit and the wind is small; mist spray of the mixed liquid is performed for 4 seconds each time so that the liquid can be evenly sprayed on stigma of female flowers; the mixed liquid is only needed for once without repetition, so that marks are timely made after mist spray (such as hanging a tag or putting on red paint on sprayed branches); the situation that it does not rain within 2-3 hours after spray is good. The method is simple in operation and easy to master, the seedless fruit can be produced from the kiwi fruit 'miliang-1' variety through the parthenocarpy, quality is improved, yield is increased, and storage time is prolonged.

The present invention relates to plants and plant parts of a watermelon variety NUN 01006 WMW, seeds from which the plant can be grown and seedless fruit produced on the plant, as well as vegetative reproductions of NUN 01006. Further, the invention relates to natural or induced phenotypic variants of the plant, such as mutants or somaclonal variants.

The invention provides a seedless fruit swelling method of a new grape variety Reiducomei second-crop fruit, and the seedless fruit swelling method specifically comprises the following steps: 5-6 days before flowering of the grape second-crop fruit, using a composite fruit swelling liquid A to soak grapes, the composite fruit swelling liquid A is composed of gibberellin, zeatin, a boron fertilizer and a plant extract; 2-3 days after flowers of the second crop of grapes fall, the grapes are soaked with a composite fruit swelling liquid B, and the composite fruit swelling liquid B is a mixed liquid composed of furfurylaminopurine, 6-benayl aminopurine, diphenylurea (DPU), Jiumei, Jiaoqiang and amino acid raw powder, and the compound fruit swelling liquid B is a mixed liquid composed of furfurylaminopurine, 6-benayl aminopurine, diphenylurea (DPU), Jiaoqiang and amino acid raw powder; the fruit swelling effect is optimal. Through research, the applicant finds that the plant extracting solution is a composite plant extracting solution obtained by water extraction of garlic, plantain herb and day lily, and the composite plant extracting solution is beneficial to plant hormones and promotes a seedless effect; in summary, after the technical scheme is adopted for carrying out fruit swelling treatment on the grapes, the fruits are uniform in size and good in seedless effect after being swollen, the quality of the grapes is effectively improved, and therefore the economic value is improved.