30 results about "Roguing" patented technology

The invention relates to a multi-resistance eurytopic selection mixed wheat breeding method, and belongs to the field of crop breeding. According to the method, plants are selected from a wheat hybridF2 generation, the selected plants are subjected to seed testing, then single ears are threshed and mixed, and an F3 generation is sown; the F3 generation continues to be subjected to plant selection, the selected plants are subjected to seed testing, then single ears are threshed and mixed, and an F4 generation is sown; the F4 generation is subjected to plant selection, seed testing and single-plant threshing, mixing is not carried out, and a plant strain starts to be identified; if the plant strain integrates many objective traits and trait expressions between the plants are consistent, a key strain can be determined, a plot identification test is improved, and 3-5 plants are reserved for purity preservation; if the traits of the plant strain are separated, single plants are selected inthe plant strain, and plant strain identification is carried out in the next year until a stable generation is obtained; finally, multi-point product comparison and identification are carried out onthe stable generation. According to the method, excellent genes can be well retained during seed selection of hybrid generations, excellent single plants are selected at the early stage, adverse individuals are eliminated, the breeding efficiency is improved, and the breeding time is shortened.

Disclosed is a rice field eel fodder which is prepared from fish meal, flour, soya bean waste, brewer's yeast grease, cereal meal, calamari marrow powder, fish oil, anti-fungus agent, oxyneurine, rice field eel multivitamin, rice field eel minerals through the steps of weighing raw material, first mixing with blenders, ultramicro disintegrating, cleaning and roguing, second mixing with blenders, low-temperature bulking with swelling machines, drying with drying-machines, spraying fish oil through a grease outside spraying system, drying with a refrigerator, sifting with grading sieves and sacking.

The invention provides a propagation method for tobacco seeds by artificial supplementary pollination. The method specifically comprises the following steps of: seedling; ditching and applying base fertilizers according to a specification that every three rows serve as a tobacco strain belt; covering by a mulching film; transplanting according to a specification that every three rows serve as a tobacco strain belt; uncovering the film and topdressing; intertilling and earthing up; removing impurities and roguing; topping to control height of the tobacco strains in the middle row topped within 100-120cm and height of the tobacco strains in rows on both sides within 90-110cm; picking buds and leaving forks; and applying a fruit bearing fertilizer to promote flower-formation and preserve blossoms; preserving fruits and thinning flowers by artificial supplementary pollination, and collecting matured capsules. The method provided by the invention is simple in operation, low in input production cost and high in seed output. Compared with a conventional method, the propagation method provided by the invention has the advantages that the yield is improved from 5-8kg / mu to 18-27kg / mu, with the increase amplitude which is 3-4 times that of the conventional method.

The invention discloses a method for producing maize ultra-fine powder, which comprises choosing and roguing maize, loading into a decorticating machine to remove maize epidermis and germs, comminuting into large-granule maize grains, watering and immersing, dewatering, disintegrating the maize particles in a crushing machine, passing through 120-150 mesh sieve, finally drying the maize particles.

The controllable hybrid corn producing process includes the following steps: preparing hybrid seed via selecting corn self selecting line with green converting leaf color mark; propagation breeding and auxiliarily roguing to eliminate false self selecting line seedling without leaf color mark while reserving true self selecting line seedling with leaf color mark; and roguing in field production via drawing off seedling with leaf color mark while the seedling grows to 1-3 leaves. The said production process of monitoring hybrid corn is saving in time, high in roguing efficiency.

The invention discloses a hybrid seed production method of an edible sunflower. The method mainly comprises setting of an isolation area, selection of a land parcel, sowing, seedling inspection, replanting, seedling thinning, seedling final singling, intertillage weeding, water dripping and topdressing, field roguing, blooming period regulation, subsidiary pollination, disease and insect pest prevention and control, harvesting, storage and the like. The hybrid seed production method of the edible sunflower has the beneficial effects shown in the following aspects: an ecological region suitable for the edible sunflower is determined; an optimal seed production technical regulation is made; produced seeds are high in yield, high in purity and good in benefit.

The invention discloses an insect catching method for efficiently and accurately investigating field thrip population density. The insect catching method comprises the following steps: randomly selecting 5 investigating points in a field region and selecting 3 to 5 types of thrip host plants from each investigating point; spraying a thrip anaesthesia drug on 20 to 30 plants of each type of the thrip host plants, wherein the spraying time is 11:00 to 13:00 of sunny days; 0.5h to 1.5h after spraying the drug, catching insects; counting the sum of the quantity of thrips on each type of plants in the field region and taking the sum as the thrip population density in the field region. The method disclosed by the invention can be used for accurately investigating a real condition of the field thrips and has the advantage of simplicity in operation.

The invention discloses a method for cultivating high-fruiting allotetraploid corn, which belongs to the technical field of distant hybridization of corn. The present invention mainly takes the allopolyploid corn BF7 (preservation number: CGMCC No.18176) as the female parent and the autotetraploid corn as the male parent; The tetraploid perennial maize, and the material with translocation chromosome number and high seed setting rate are selected and selfed, and finally the allotetraploid maize with high seed setting is bred. The allotetraploid corn cultivated by the method of the present invention has high seed setting, overcomes the shortcoming of the low seed setting rate of the previous near allotetraploid corn, and can make the chromosome exchange and recombination between the corn and the tetraploid perennial corn more fully It becomes easier and more efficient to introduce its excellent genes into maize, which provides a good foundation for expanding the genetic germplasm base of maize and cultivating breakthrough varieties.