1624 results about "Hybrid seed" patented technology

The present invention provides a method of herbicide treatment of selected female and male parents in a hybrid seed production system. The system results in enhanced trait purity and efficiency in the hybrid seed production system.

A novel hybrid maize variety designated 36W66 and seed, plants and plant parts thereof, produced by crossing two Pioneer Hi-Bred International, Inc. proprietary inbred maize lines. Methods for producing a maize plant that comprises crossing hybrid maize variety 36W66 with another maize plant. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into 36W66 through backcross conversion and / or transformation, and to the maize seed, plant and plant part produced thereby. This invention relates to the hybrid seed 36W66, the hybrid plant produced from the seed, and variants, mutants, and trivial modifications of hybrid 36W66. This invention further relates to methods for producing maize lines derived from hybrid maize variety 36W66 and to the maize lines derived by the use of those methods.

A novel hybrid maize variety designated 37F73 and seed, plants and plant parts thereof, produced by crossing two Pioneer Hi-Bred International, Inc. proprietary inbred maize lines. Methods for producing a maize plant that comprises crossing hybrid maize variety 37F73 with another maize plant. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into 37F73 through backcross conversion and / or transformation, and to the maize seed, plant and plant part produced thereby. This invention relates to the hybrid seed 37F73, the hybrid plant produced from the seed, and variants, mutants, and trivial modifications of hybrid 37F73. This invention further relates to methods for producing maize lines derived from hybrid maize variety 37F73 and to the maize lines derived by the use of those methods.

Pairs of plants are provided in which complementing constructs result in suppression of a parental phenotype in the progeny. Methods to generate and maintain such plants, and methods of use of said plants, are provided, including use of parental plants to produce sterile plants for hybrid seed production. Also provided are regulatory elements for pollen-preferred expression of linked polynucleotides. Also provided are methods for identifying gene function, and methods for repressing transmission of transgenes.

A process is described for producing hybrid seed using male-sterile plants created by employing molecular techniques to manipulate antisense DNA and other genes that are capable of controlling the production of fertile pollen in plants. Transformation techniques are used to introduce constructs containing antisense DNA and other genes into plants. Said plants are functionally male-sterile and are useful for the production of hybrid seed by the crossing of said male-sterile plants with pollen from male-fertile plants. Hybrid seed production is simplified and improved by this invention and can be extended to plant crop species for which commercially acceptable hybrid seed production methods are not currently available.

Pairs of plants are provided in which complementing constructs result in suppression of a parental phenotype in the progeny. Methods to generate and maintain such plants, and methods of use of plants generated or maintained by the methods, are provided, including use of parental plants to produce sterile plants for hybrid seed production. Also provided are regulatory elements for pollen-preferred expression of linked polynucleotides. Also provided are methods for identifying gene function, and methods for repressing transmission of transgenes.

A novel hybrid maize variety designated 37Y12 and seed, plants and plant parts thereof, produced by crossing Pioneer Hi-Bred International, Inc. proprietary inbred maize lines. Methods for producing a maize plant that comprises crossing hybrid maize variety 37Y12 with another maize plant. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into 37Y12 through backcross conversion and / or transformation, and to the maize seed, plant and plant part produced thereby. This invention relates to the hybrid seed 37Y12, the hybrid plant produced from the seed, and variants, mutants, and trivial modifications of hybrid 37Y12. This invention further relates to methods for producing maize lines derived from hybrid maize variety 37Y12 and to the maize lines derived by the use of those methods.

The invention relates to the technical field of side slope treatment, and discloses a high and steep side slope ecological retrieved green spray-seeding base material and a preparation method and application of the base material. The spray-seeding base material comprises the following raw materials in parts by weight: 330-420 parts of planting soil, 20-30 parts of peat soil, 1.5-5 parts of organic fertilizer, 1-3 parts of grass fibers, 1-3 parts of sawdust, 0.03-0.05 part of a water-retaining agent, 0.02-0.04 part of an adhesive, 0.1-0.5 part of inorganic fertilizer, 0.5-2 parts of a pH adjustment agent, 30-44 parts of hybrid seeds and 150-200 parts of water, wherein the hybrid seeds consists of the following plant seeds in parts by weight: 10-12 parts of rhizomes tall fescue, 2-4 parts of trifolium repens, 3-5 parts of alfalfa, 2-3 parts of bermuda grass, 2.5-4 parts of indigofera pseudotinctoria, 4-6 parts of magnolia multiflora, 3-5 parts of cassia corymbosa, 2-3 parts of amorpha fruticosa and 1-2 parts of coreopsis. The base material disclosed by the invention for spray-seeding can make a soil replacement base layer with the intensity higher than 0.25MPa; after 45 days when a turf is formed, the rainwash strength is higher than or equal to 120mm / h; within half a year to a year, an ecological plant colony with shrubs which grow with the rainwash strength higher than or equal to 200mm / h and serve as main plants is formed.

According to the invention, there is provided a hybrid maize plant, designated as 36K67, produced by crossing two Pioneer Hi-Bred International, Inc. proprietary inbred maize lines. This invention relates to the hybrid seed 36K67, the hybrid plant produced from the seed, and variants, mutants, and trivial modifications of hybrid 36K67. This invention also relates to methods for producing a maize plant containing in its genetic material one or more transgenes and to the transgenic maize plants produced by those methods. This invention further relates to methods for producing maize lines derived from hybrid maize line 36K67 and to the maize lines derived by the use of those methods.

A novel hybrid maize variety designated 31D58 and seed, plants and plant parts thereof, produced by crossing Pioneer Hi-Bred International, Inc. proprietary inbred maize lines. Methods for producing a maize plant that comprises crossing hybrid maize variety 31D58 with another maize plant. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into 31D58 through backcross conversion and / or transformation, and to the maize seed, plant and plant part produced thereby. This invention relates to the hybrid seed 31D58, the hybrid plant produced from the seed, and variants, mutants, and trivial modifications of hybrid 31D58. This invention further relates to methods for producing maize lines derived from hybrid maize variety 31D58 and to the maize lines derived by the use of those methods.

A novel hybrid maize variety designated 36Y84 and seed, plants and plant parts thereof, produced by crossing Pioneer Hi-Bred International, Inc. proprietary inbred maize lines. Methods for producing a maize plant that comprises crossing hybrid maize variety 36Y84 with another maize plant. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into 36Y84 through backcross conversion and / or transformation, and to the maize seed, plant and plant part produced thereby. This invention relates to the hybrid seed 36Y84, the hybrid plant produced from the seed, and variants, mutants, and trivial modifications of hybrid 36Y84. This invention further relates to methods for producing maize lines derived from hybrid maize variety 36Y84 and to the maize lines derived by the use of those methods.

The invention relates to a method for cross breeding and seedling propagation of paphiopedilum, which comprises the steps of artificial pollination, sterile seeding, strong seedling culture, and test-tube plantlet transplant. After the artificial pollination of paphiopedilum coenospecies, a powdery embryo in hybrid fruits is inoculated to a specially prepared seed germination culture medium for culture; plantlets obtained by the sterile seeding are inoculated to a specially prepared strong seedling culture medium for strong seedling culture; and finally, the test-tube plantlet transplant is performed. The method uses unique culture media, ensures the high germination rate, quick seedling and high seedling quality of paphiopedilum hybrid seeds, has the advantages of high operability, high application value and the like, and overcomes the difficulty that the paphiopedilum hybrid seeds are extremely difficult to germinate in a natural state due to the incomplete development of embryo and other difficulties.

A novel hybrid maize variety designated 34P88 and seed, plants and plant parts thereof, produced by crossing two Pioneer Hi-Bred International, Inc. proprietary inbred maize lines. Methods for producing a maize plant that comprises crossing hybrid maize variety 34P88 with another maize plant. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into 34P88 through backcross conversion and / or transformation, and to the maize seed, plant and plant part produced thereby. This invention relates to the hybrid seed 34P88, the hybrid plant produced from the seed, and variants, mutants, and trivial modifications of hybrid 34P88. This invention further relates to methods for producing maize lines derived from hybrid maize variety 34P88 and to the maize lines derived by the use of those methods.

A novel hybrid maize variety designated 31P41 and seed, plants and plant parts thereof, produced by crossing Pioneer Hi-Bred International, Inc. proprietary inbred maize lines. Methods for producing a maize plant that comprises crossing hybrid maize variety 31P41 with another maize plant. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into 31P41 through backcross conversion and / or transformation, and to the maize seed, plant and plant part produced thereby. This invention relates to the hybrid seed 31P41, the hybrid plant produced from the seed, and variants, mutants, and trivial modifications of hybrid 31P41. This invention further relates to methods for producing maize lines derived from hybrid maize variety 31P41 and to the maize lines derived by the use of those methods.

The invention discloses a 'three-selection, two-advancing and one-promotion' apple breeding method. The apple breeding method provided by the invention comprises the following steps of: (1) pollinating a castrated apple variety with excellent comprehensive characters by pollen of Xinjiang red-pulp apples, to obtain hybrid seeds; (2) stacking the hybrid seeds, and then sowing in a greenhouse for growing seedlings after breaking dormancy; (3) transplanting the seedlings to a big field, and selecting red-pulp and crisp-pulp seedlings from the seedlings at an early stage of apples; (4) respectively pollinating the castrated apple varieties with excellent comprehensive characters by pollen of each red-pulp and crisp-pulp seedling, to obtain backcross seeds; (5) stacking the backcross seeds, sowing in a greenhouse for growing seedlings after breaking dormancy, and weeding out individual plants with green leaves and reserving individual plants with red leaves at a seedling stage; and (6) transplanting the individual plants of the seedlings to the big field. Three new varieties have been selected from 2006 to 2013. At least 20-30 years are needed if a traditional method is used.

According to the invention, there is provided a hybrid maize plant, designated as 32B33, produced by crossing two Pioneer Hi-Bred International, Inc. proprietary inbred maize lines. This invention relates to the hybrid seed 32B33, the hybrid plant produced from the seed, and variants, mutants, and trivial modifications of hybrid 32B33. This invention also relates to methods for producing a maize plant containing in its genetic material one or more transgenes and to the transgenic maize plants produced by those methods. This invention further relates to methods for producing maize lines derived from hybrid maize line 32B33 and to the maize lines derived by the use of those methods.

A novel hybrid maize variety designated 33H25 and seed, plants and plant parts thereof, produced by crossing two Pioneer Hi-Bred International, Inc. proprietary inbred maize lines. Methods for producing a maize plant that comprises crossing hybrid maize variety 33H25 with another maize plant. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into 33H25 through backcross conversion and / or transformation, and to the maize seed, plant and plant part produced thereby. This invention relates to the hybrid seed 33H25, the hybrid plant produced from the seed, and variants, mutants, and trivial modifications of hybrid 33H25. This invention further relates to methods for producing maize lines derived from hybrid maize variety 33H25 and to the maize lines derived by the use of those methods.

The invention relates to a method for improving hybrid seed production yield and quality of common head cabbages, which belongs to the technical field of plant cultivation. The method comprises the following steps of: seeding and raising seedlings from a female parent and a male parent in early August, and seeding English wallflower in mid-to-late September; planting the raised seedlings of the female parent and the male parent of the common head cabbages in a hybrid seed production field of the common head cabbages in mid-to-late September, wherein English wallflower planting points are reserved in each seed production field; planting young English wallflower seedlings in the field planting points reserved in the hybrid seed production field of the common head cabbages in later October; applying aqueous solution of honey with the concentration of 0.5-1 percent to foliages for 2-3 times during a flowering period of common head cabbage plants, putting about 60000 bees in two boxes for auxiliary pollination in each mu during natural pollination; and harvesting and timely airing and threshing the common head cabbages when common head cabbage pods are yellowed and seeds are browned. The honey source crops are reasonably planted in the seed production field, and the honey mixed solution is sprayed during the flowering period, so that the bees can be effectively attracted to perform pollination, the cross pollination probability obviously increases, and the seed production yield and quality of the common head cabbages are obviously improved.

The invention belongs to the technical field of crop cultivation, and particularly relates to a cassava blossoming regulation and control technology. The cassava blossoming regulation and control technology is characterized by comprising selection and preparation of land, plantation management, regulation and control of the blooming period, flower retention, regulation and control of the ratio of female flowers to male flowers, measurement of the pollen activity, pollination experiment and cross breeding. Stable and superior hybrid seeds are obtained by adopting a chemical regulation and control method and a manual agricultural measure regulation and control method. The cassava blossoming regulation and control technology has the characteristics of early blossoming time, high blossoming rate and easiness in technical operation, and is suitable for cross breeding in most cassava planting areas in China.

The invention provides transgenic maize event MON 87427 and plants, plant cells, seeds, plant parts, and commodity products derived from event MON 87427. The invention also provides nucleotides specific for transgenic maize event MON 87427 and plants, plant cells, seeds, plant parts, and commodity products comprising nucleotides specific for transgenic maize event MON 87427. The invention also provides methods related to transgenic maize event MON 87427 and to the Roundup® Hybridization System (RHS). The invention also provides a Relative Development Scale useful for monitoring and determining reproductive development in maize that reconciles developmental differences across various maize varieties. This is useful for determining the optimal timing of a treatment regimen in which tassel development stage is an important factor, including various methods in making hybrid seed.

The invention discloses a method for germinating Chinese pear hybrid seeds, which comprises the following steps of: A, Chinese pear allocarpies picking; B, fruit sorting: sorting according to grade to reduce the cross infection of fruit surfaces; C, pre-storage: storing Chinese pear allocarpies of different grades in a ventilating shade place in advance; D, fruit refrigeration: placing the pre-stored fruit in a refrigerated cabinet for refrigeration and keeping the temperature in the refrigerated cabinet constant; E, seed separating and cleaning: removing fruit pulp to obtain the Chinese pear hybrid seeds and rinsing the Chinese pear hybrid seeds with clean water; F, seed sand storage: immersing the seeds in warm water for soaking the seeds and then storing the seeds in sand; and G, sowing: after the seeds germinate, sowing the germinated seeds in a prepared seedling box on a warm day. The method is easy to implement and simple and convenient in operation, and improves the germination rate of the Chinese pear hybrid seeds due to the fact that the Chinese pear allocarpies are stored in the refrigerated cabinet for refrigeration till the Chinese pear seeds are completely ripen in the fruit and then the seeds are stored in sand.

A novel hybrid maize variety designated 34A15 and seed, plants and plant parts thereof, produced by crossing two Pioneer Hi-Bred International, Inc. proprietary inbred maize lines. Methods for producing a maize plant that comprises crossing hybrid maize variety 34A15 with another maize plant. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into 34A15 through backcross conversion and / or transformation, and to the maize seed, plant and plant part produced thereby. This invention relates to the hybrid seed 34A15, the hybrid plant produced from the seed, and variants, mutants, and trivial modifications of hybrid 34A15. This invention further relates to methods for producing maize lines derived from hybrid maize variety 34A15 and to the maize lines derived by the use of those methods.

The present invention relates to isolated male tissue-preferred regulatory sequences from Ms45 gene. The invention also relates to the use of Ms45 gene male tissue-preferred regulatory sequences in mediating male fertility in a plant, and in producing hybrid seed. The Ms45 male tissue-preferred regulatory region can be operably linked to exogenous genes encoding cytotoxins or inhibitory molecules. The invention also relates to plant cells, plant tissue and plants that contain the MS45 gene regulatory sequences.

A novel hybrid maize variety designated 38B12 and seed, plants and plant parts thereof, produced by crossing two Pioneer Hi-Bred International, Inc. proprietary inbred maize lines. Methods for producing a maize plant that comprises crossing hybrid maize variety 38B12 with another maize plant. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into 38B12 through backcross conversion and / or transformation, and to the maize seed, plant and plant part produced thereby. This invention relates to the hybrid seed 38B12, the hybrid plant produced from the seed, and variants, mutants, and trivial modifications of hybrid 38B12. This invention further relates to methods for producing maize lines derived from hybrid maize variety 38B12 and to the maize lines derived by the use of those methods.

The invention discloses a honey bee attractant and a method for seed production and pollination of a soybean hybrid seed in a field. The honey bee attractant is prepared from cellular liquid, imitation flower liquid, syrup and water. The method comprises the steps of: selecting the field suitable for growth of soybean, sowing the soybean hybrid seed in good time, interplanting a male parent and a female parent at an interval of a ridge, selecting required quantity of healthy pollination swarm before pollination, transporting the healthy pollination swarm in the soybean field at an early flowering stage of the soybean; feeding attractant syrup one hour before spraying the honey bee attractant in each day or at an interval of a day; forming 1-5 ridges for every1-3 days, spraying the honey bee attractant on hybrid soybean plant leaf of the male parent and the female parent in the 1-5 ridges; inducing a large quantity of bees to gradually fall on the hybrid soybean plant leaf to eat the attractant syrup; then spraying the honey bee attractant on the two sides of a hybrid soybean strain stem, inducing the bees to climb on the soybean strain stem and continue to climb on the soybean to collect, thereby pollinating the hybrid soybean; stopping spraying the honey bee attractant in a cloudy or rainy day, and spraying the honey bee attractant when the weather gets nicer, so as to keep enough attractant required for inducing the bees in the field.

According to the invention, there is provided a hybrid maize plant, designated as 38H67, produced by crossing two Pioneer Hi-Bred International, Inc. proprietary inbred maize lines. This invention relates to the hybrid seed 38H67, the hybrid plant produced from the seed, and variants, mutants, and trivial modifications of hybrid 38H67. This invention also relates to methods for producing a maize plant containing in its genetic material one or more transgenes and to the transgenic maize plants produced by those methods. This invention further relates to methods for producing maize lines derived from hybrid maize line 38H67 and to the maize lines derived by the use of those methods.

The present invention discloses a pipless fructus momordicae and the cultivation method. The cultivation method is: 1) breeding the tissue cultivation seedling with the male and the female ex-plant of diploid fructus momordicae; 2) doubly introducing the chromosome with the tissue-cultivation successive-transfer seedling; 3) performing the differential cultivation with different parts of the male and the female plants after introducing treatment; 4) cutting the stem tip and the stem section of the sprout differentially cultivated to perform the gemmulation cultivation; 5) examining the number of the chromosome of a cultivated entire plant to select the tetraploid plant for performing the root cultivation and the seedling exercise; 6) planting the tetraploid plant and the diploid plant according to the conventional techniques and performing the artificial pollination to get the hybrid seed when in flower; 7) breeding the hybrid seed to be a complete plant and examining the number of the chromosome; selecting the triploid plant to perform the root cultivation and seedling exercise; 8) planting the triploid plant and the diploid plant and performing the artificial pollination on the male diploid plant with the female triploid plant when in flower; the pipless fructus momordicae can be obtained after the fruiting of the female plant.