61results about How to "Drought tolerant" patented technology

The invention discloses a tissue culture and rapid propagation method for Acer rubrum 'Brandywine'. The Acer rubrum 'Brandywine' is an Aceraceae Acer tall deciduous tree, has the characteristics of high adaptability, drought resistance, temperature resistance, growth fastness and the like and is a fine tree species for landscaping. At present, the Acer rubrum 'Brandywine' mainly propagates seedlings with a seed sowing propagation method, but the seed fruiting rate is lower, so that supply of a large number of seedlings of the Acer rubrum 'Brandywine' is limited. According to the method, stems with buds are used as explants, tissue-cultured regenerated plants of the Acer rubrum 'Brandywine' are successfully obtained through steps of induction, multiplication, rooting, acclimatization, transplantation and the like, a systematic tissue-cultured plant regeneration system for the Acer rubrum 'Brandywine' is established, and a reference is provided for mass factory culture of the seedlings of the Acer rubrum 'Brandywine'.

The invention discloses a method for reclaiming heavy metal-polluted soil. In the method, ambary is grown in the soil polluted by the heavy metal. According to the invention, a fiber crop ambary with the characteristics of heavy metal resistance, barrenness, large biomass, robust roots and the like is used in the method, and the purposes of reclamation, water and soil maintenance, heavy metal fixing and the like can be achieved by planting the ambary on the Multi-metal polluted soil. The method of the invention has economic value and landscape value, and is suitable for popularizing in the heavy metal-polluted farmland and waste land near the mine.

The invention discloses a biological compound seed coating agent and an application. The biological compound seed coating agent comprises bacillus amyloliquefaciens YN2010-KC CGMCC No.5722 fermentation liquor, insecticide, bactericide, a dispersing agent and a film-forming agent. The biological compound seed coating agent has multiple functions of preventing diseases, preventing insects, enduring drought, promoting growth and increasing the yield, and the problem of pathogenic bacterium insecticide resistance and environmental pollution caused by a traditional chemical seed coating agent can be relieved. The preventing effect of the traditional biological seed coating agent and stability under the adverse conditions can be improved. The biological compound seed coating agent is good in suspension property and dispersing performance, does not precipitate, is even in coating, does not fall off and is safe for operators and environment.

The invention relates to a method for catalytic conversion preparation of a hexahydric alcohol from jerusalem artichoke as a raw material. The method is characterized in that a raw material of natural biomass jerusalem artichoke (mainly comprising fructose-based polysaccharide carbohydrates) undergoes a reaction at a temperature above 20 DEG C under hydrogen pressure of 1 to 13MPa in the presence of water as a solvent and a catalyst or a mixed catalyst for at least 5 minutes, wherein the catalyst comprises acidic carriers and one or more of transition metals of iron, cobalt, nickel, copper, ruthenium, rhodium, palladium, iridium and platinum loaded on the acidic carriers; and the mixed catalyst comprises solid acids and a metal hydrogenation catalyst comprising carriers and one or more of transition metals of iron, cobalt, nickel, copper, ruthenium, rhodium, palladium, iridium and platinum loaded on the carriers. Through one-step catalytic conversion, high-efficiency, high-selectivity and high-yield preparation of a hexahydric alcohol such as mannitol and sorbitol from jerusalem artichoke as a raw material is realized.

The invention discloses a planting method for a protection forest in a northwestern desert area. The method is characterized in that a wind and sand frontier area without vegetation at the periphery of an oasis is selected, a plant tree line band, a shrub line band and a herb line band are constructed from outside to inside in sequence in a main wind direction, and the protection forest suitable for the northwest desert area is cultivated through planting of plants and water and fertilizer management after planting. Compared with the prior art, the planting method has the advantages of high temperature resistance, cold tolerance, salt and alkali resistance, sand burial resistance, drought tolerance, a low occurrence rate of pests and diseases and wide adaptation; the selected plants are all drought-resistant, water-saving and sand-preventing plants, a configuration pattern of combination of trees, shrubs and herbs is adopted, the community stability is high, the efficiency of wind prevention and sand fixation is guaranteed, direct economic benefits can be generated at the same time, the generated economic benefits can continue to maintain the management and protection investment ofthe protection forest and even have surpluses, the effects of wind prevention and sand fixation are achieved, the environmental quality is improved, and meanwhile, the enthusiasm of local people formanagement and protection of the protection forest is greatly improved.

The invention discloses a mixed-sowing method of forage grass in a high altitude area of the Three Gorges reservoir area, comprising soil preparation before sowing, mixed sowing and fertilizer application, wherein the mixed sowing means mixed sowing of orchard grass seeds, trifolium repens seeds and alfalfa seeds, and specifically comprises the following steps of: performing row-spaced drilling on the orchard grass seeds and the alfalfa seeds, with row spacing of 0.3m; and uniformly sowing the trifolium repens seeds among the rows of the orchard grass seeds and the alfalfa seeds, wherein the dosage ratio of the orchard grass seeds to the trifolium repens seeds to the alfalfa seeds is 1: (1 to 1.6): (1 to 1.6), in parts by weight. The leguminous forage grass and gramineous forage grass selected for the mixed-sowing of forage grass disclosed by the invention are featured with heat resistance, drought resistance and leanness resistance, and are mixed-sowed with each other, thus adequately utilizing light energy and increasing photosynthates; additionally, the leguminous forage grass has a high protein content and the rhizobia of the leguminous forage grass has a function of nitrogen fixation, thus remarkably increasing the yield of the forage grass, and improving the quality of the forage grass and soil fertility, so that the advantages of the leguminous forage grass are very prominent. The method disclosed by the invention is simple and convenient, and simple in operation; and the artificial pasture established by the method has the characteristics of heat resistance, drought resistance and leanness resistance.

The invention discloses a method for producing active carbon from salix mongolica branches through pyrolysis. The method comprises the following steps of: a, removing impurities salix mongolica branches, air-drying or drying and crushing the salix mongolica branches after impurity removal; b, placing the crushed salix mongolica branches in a rotary furnace, carbonizing the salix mongolica branches under a protective gas; c, introducing a gas activating agent for activating after the carbonizing; and d, taking the activated active carbon out from the rotary furnace, rinsing, screening, detecting, and finally packaging to obtain an active carbon finished product. The active carbon is produced by using the salix mongolica branches as raw materials, and thus a large quantity of waste branches in the process of norusihing the salix mongolica shrubwood is utilized. The raw materials for preparing the active carbon are easily available, and are low in cost. The active carbon is produced from the salix mongolica lopsticks, and thus the salix mongolica lopsticks are recycled, the production cost of the active carbon is lowered, the new variety of the active carbon is developed, the comprehensive development and utilization of the salix mongolica can be promoted, and the development space of the active carbon industry is enlarged.

The invention relates to a method for ecological restoration of a mountain, which comprises the following steps: (1) forming holes on a rocky mountain; (2) filling cement mortar (1 : 3) in the holes; (3) inserting foundation steel bars into the cement in the holes and allowing the foundation steel bars to protruding out of the rocky mountain at a certain length, and pouring a cement frame or not with the foundation steel bars as center; (4) laying a vertically consecutive planting soil layer along the rock slope of the rocky mountain, wherein the planting soil layer comprises plant growth bags stacked along the rock slope and filling soil for filling gaps; (5) coating a steel mesh on the outer surface of the planting soil layer, wherein the steel mesh is fixedly connected with the foundation steel bars to fix the plant growth bags and is formed of a plurality of steel wires by crossing each other; and (6) watering and curing the plant growth bags. The method provided by the invention perfectly combines plants, soil and the mountain; and not only has rapid and good greening effect and effectively solves the problems of mountain landslide, collapse and the like, but also forms a stable long-life plant community, achieving an original ecological effect.

The invention relates to the technical field of soil remediation, and particularly relates to a method for remediating cadmium pollution of soil with red-spotted stonecrop. The method comprises the following steps: step A: applying a biomass charcoal improver to the polluted soil; step B: planting red-spotted stonecrop in the polluted soil; step C: after growing for 60-150 days, cutting overground plant parts of the red-spotted stonecrop and then applying a nutrient solution; and step D: after repeating the step C for 1-4 times, removing the whole red-spotted stonecrop. The method provided by the invention uses the red-spotted stonecrop and the biomass charcoal improver for joint remediation; the biomass charcoal improver provides a relatively good growth environment for the red-spotted stonecrop, plays a role of promoting growth of roots of the red-spotted stonecrop, and enhances vitality of the red-spotted stonecrop; the red-spotted stonecrop can enrich the heavy metal cadmium efficiently; the content of cadmium in the polluted soil can be reduced greatly under double action of the red-spotted stonecrop and the biomass charcoal improver; the method can achieve the purpose of complete remediation after three to six years and has good social and economic benefits and popularization and application values.

The invention discloses an actinomycete strain Microbacterium testaceum SCAUT009 and application thereof, the actinomycete strain is preserved in Guangdong Microbial Culture Collection Center, and the preservation number is GDMCC No: 61508. The Microbacterium testaceum SCAUT009 separated and screened by the invention has growth promoting capabilities of generating IAA (Indoleacetic Acid) and siderophores, dissolving phosphorus, degrading cellulose and chitin and the like, and also has stress resistance functions of salt resistance, acid and alkali resistance, drought resistance and the like, the effect of promoting the growth of the liangshan vicia villosa can be obtained by applying the Microbacterium testaceum SCAUT009 to the liangshan vicia villosa, and the survival rate of the liangshan vicia villosa can be increased. The yield of forage grass is increased, meanwhile, the soil quality is improved, the tobacco planting soil is improved, and the method has good application potential in agricultural production.

The invention provides a method for remedying cadmium-contaminated soil through inter-planting of cadmium accumulator plants and fruit trees. The method comprises the steps that cadmium accumulator Sedum Spectabile Boreau and low-cadmium-accumulation commercial crop citruses are selected and inter-planted in the cadmium-contaminated soil, and a large quantity of cadmium in the soil is absorbed bya root system of the Sedum Spectabile Boreau and is transferred over the ground; when the Sedum Spectabile Boreau reaches 40-50cm, the overground parts of the Sedum Spectabile Boreau are removed fromthe cadmium-contaminated soil, so that the cadmium in the cadmium-contaminated soil is removed; the cadmium content of the harvested parts of the screened-out low-cadmium-accumulation commercial cropcitruses is lower than the relevant standard, so that the purpose of remedying the cadmium-contaminated soil during production is realized; after harvesting, the Sedum Spectabile Boreau can continue to grow to absorb cadmium in the soil, and the overgroud parts can be cut again to remedy the cadmium-contaminated soil when the Sedum Spectabile Boreau grows to 40-50 cm; and the citruses perennial crops and can continue to grow to be harvested after being harvested. The method is reasonable in design, easy to operate, low in cost and capable of being used for remedying the cadmium-contaminated soil, and has good environmental, economic and social benefits.

The invention relates to a method for repairing nitrobenzene compound contaminated soil by utilizing flax, which comprises the following steps: firstly, mixing and homogenizing soil contaminated by red water and a mixture of sierozem and municipal sewage sludge pro rata to obtain mixed soil; secondly, adding wheat bran in the mixed soil; admixing ferrous sulfate, so that the pH value of the mixed soil is neutral; and then cultivating the flax in the open on the mixed soil; and thirdly, managing the flax in a conventional planting manner and cradling the flax when the growth period of the flax is over. The method is economical and green, is free from secondary pollution, is easy to accept by the masses, can be suitable for the large-area nitrobenzene compound contaminated soil and also can achieve the purpose of producing while repairing.

The invention discloses a breeding method of Shangmai 5226, a dry-farming variety in mountainous areas. Shangmai 8928 is selected as the female parent, and 8788 is planted as the male parent for hybridization. The combination number is 97(5), and the offspring are treated by the pedigree method; 97(5)-22 -6-1 and 97(5)-22-6-2 are basically the same in traits and characteristics, weak winter resistance, plant height 85cm, white grains, good quality, disease resistance, drought and cold resistance, and good yellow fall. 97(5)-22-6-1 participated in the regional test, and multiplied and tested.

The invention relates to screening of rhizome medicinal material varieties, in particular to a breeding method of a high-stress-resistance variety of polygonatum sibiricum. The breeding method is characterized by comprising the steps that wild polygonatum sibiricum is dug, mixing cultivation is carried out on multiple alternative varieties under a same site condition, then one or more resistance environments of drought, waterlogging, weed damage and pest and disease damage are simulated or created for first resistance screening, then second resistance screening is carried out to breed the high-stress-resistance variety of polygonatum sibiricum. According to the breeding method of the high-stress-resistance variety of polygonatum sibiricum, various stress resistances of different wild polygonatum sibiricum varieties can be shown, thereby screening the high-stress-resistance variety of polygonatum sibiricum with one or more characteristics of drought resistance, waterlogging resistance,weed damage resistance and pest and disease damage resistance, and the suitable good variety is provided for polygonatum sibiricum cultivation under different site conditions.

The invention discloses a novel selective marker and an application thereof in plant genetic transformation. A PCR method is utilized to clone a P5CS gene and a promoter DP, and a safe selective marker DP-P5CS is obtained; a plant expression carrier containing the safe selective marker DP-P5CS is utilized to transform a target gene into a plant, and a drought stress screening transgenosis method is adopted, thus being applicable to genetic transformation of most plants; and safety and high efficiency are realized, the problem that people is worried about the safety of selectable marker gene is solved, and the obtained transgenic plant not only plays the function of the target gene but also has drought resistance, thus having great significance and attractive prospect and being a good way for producing selectable marker transgenic plants.

The invention discloses an actinomycete strain Arthrobacter luteolus SCAUT011 and application thereof, wherein the actinomycete strain is preserved in Guangdong Microbial Culture Collection Center, and the preservation number is GDMCC No: 61509. According to the invention, the Arthrobacter luteolus SCAUT011 provided through separating and screening has growth promoting capabilities of generating IAA and siderophores, dissolving phosphorus, degrading cellulose and chitin and the like, and also has stress resistance functions of salt resistance, acid and alkali resistance, drought resistance and the like, and is applied to liangshan Vicia villosa var .glabresens to obtain the effect of promoting the growth of the liangshan Vicia villosa var .glabresens; and the yield of forage grass is increased while the soil quality is improved, the tobacco planting soil is improved, and the actinomycete strain Arthrobacter luteolus SCAUT011 has good application potential in agricultural production.

The invention discloses a method for cultivating apples in a saline and alkali land, and belongs to the technical field of improvements of saline and alkali lands. The method includes the steps that the water content of the saline and alkali land is adjusted, ardealite and oil cakes are evenly applied on the surface of the saline and alkali land, after being evenly mixed through rotary tillage, the ardealite, the oil cakes and surface soil of the saline and alkali land are covered with mulching films to preserve moisture for a period of time, the ardealite and the oil cakes take wide synergistic effect to greatly reduce the salinization degree of the saline and alkali land, the soil structure of the saline and alkali land is effectively improved, and the soil pH value is reduced; malus asiatica seedlings are transplanted to the saline and alkali land, then the apples are grafted to the malus asiatica seedlings serving as stocks, and therefore the apples can be planted in the saline and alkali land.

The invention discloses a method for remediating cadmium contaminated farmland soil by means of sedum spetabiles. The method for remediating the cadmium contaminated farmland soil by means of the sedum spetabiles comprises the steps that (1) the sedum spetabiles is planted in the cadmium contaminated farmland soil; and (2) the overground plant parts of the sedum spetabiles are cut and removed, and then remediation of the cadmium contaminated farmland soil is completed. According to the method for remediating the cadmium contaminated farmland soil by means of the sedum spetabiles, the sedum spetabiles is planted in the cadmium contaminated farmland soil and rapidly survives and grows in the soil, the root system of the sedum spetabiles absorbs cadmium in the soil and transfers the cadmium to the overground plant parts of the sedum spetabiles by means of the capacity to gather the heavy metal cadmium in the soil of the sedum spetabiles, and thus the purposes of reducing the content of the heavy metal cadmium in the soil and remediating the cadmium contaminated farmland soil are achieved.

The invention discloses a method and activating agent for restoring cadmium and / or lead contaminated soil through Hylotelephium erythrostictum and application of the activating agent. According to themethod, the Hylotelephium erythrostictum is planted on the cadmium and / or lead contaminated soil, and water-soluble carboxyethyl chitosan is applied into the contaminated soil to activate heavy metalcadmium and / or lead; and the Hylotelephium erythrostictum survives and grows, the overground part, absorbing the heavy metal cadmium and / or lead, of the Hylotelephium erythrostictum is reaped regularly, the heavy metal cadmium and lead in the soil can be effectively removed, and thus the restoring efficiency of the Hylotelephium erythrostictum to the cadmium and / or lead contaminated soil is greatly improved, wherein the activating agent is the water-soluble carboxyethyl chitosan. The method and the activating agent have the advantages that the restoring efficiency of the Hylotelephium erythrostictum is improved, the cost is low, operation is easy and convenient, biodegradability is achieved, and secondary pollution is avoided.

The invention relates to a multifunctional medicinal fertilizer and applications thereof. The medicinal fertilizer is prepared by respectively mixing biopesticide and chemical pesticide through taking a compound fertilizer as a carrier and at least one of trace element fertilizers as a carrier; the compound fertilizer is a nitrogen fertilizer, a phosphorous fertilizer and a potassium fertilizer; the biopesticide comprises microorganisms and fresh ginger; the chemical pesticide comprises 95% of ethiofencarb sodium salt, 3% of carbofuran granules, and 15% of Lecaolong wettable powder. The applications of the multifunctional medicinal fertilizer comprise the steps: evenly mixing the biopesticide and chemical pesticide with the compound fertilizer or the trace element fertilizer, and applying the fertilizer after rice seedlings are transplanted for three to five days and when 3-5cm water is kept in a rice field. The yield of rice can be greatly increased only by applying the multifunctional medicinal fertilizer once, and the multifunctional medicinal fertilizer also has multiple functions of insect killing, weeding, scarification, disease prevention, growth assistance, drought resistance, cold resistance, and lodging resistance, as well as prevention and treatment to schistosoma, oncomelania and ovum, and the like.

The invention relates to a method for culturing and planting seedlings of color virus-free sweet potatoes. The method is characterized by utilizing the characteristic of low virus content or no virus content in stem tips of the sweet potatoes, cutting meristems of the stem tips of 0.2-0.4mm under an aseptic manipulation, forming test tube seedlings by culturing on a specific culture medium, and further detecting the virus-free seedlings by serology and indicator plant grafting. Meanwhile, the invention further provides the corresponding tissue rapid propagation technical regulations and a factorized production system according to different types, thereby accelerating the propagation of a large number of color style virus-free sweet potato seedlings. The method can propagate the potato species which has high nutritional value and bright color and is applicable to fresh-eating, baking or processing of the preserved sweet potatoes.

The invention discloses a grafting method of paliurus ramosissimus. The grafting method comprises a grafting method, wherein the grafting method comprises the following steps: a. selecting rosa chinensis with growth age of 1-2 years and developed root system as a stock; b. selecting paliurus ramosissimus branch as scion, wherein the scion comprises at least two buds; c. cutting a first shield-shaped notch with 1-2cm on the sunny slope of the stock, wherein the inclination angel of the first shield-shaped notch is 30-40 degrees, cutting a second shield-shaped notch on the scion branch, wherein the second shield-shaped notch is arranged at the lower end of the bud, and the first shield-shaped notch is corresponding to the second shield-shaped notch; d. connecting the second shield-shaped notch of the scion and the first shield-shaped notch of the stock, covering a plastic band on the connecting part; e. after grafting for 10-20 days, scissoring the telome of the stock and unfastening the plastic band after the tender shoot grows on the scion. The paliurus ramosissimus cultivated by the grafting method of the paliurus ramosissimus disclosed by the invention is evergreen and indeciduate.

The invention discloses a sugarcane field planting and breeding combined method. The sugarcane field planting and breeding combined method comprises the following steps of sowing sticktight between sugarcane rows in a sugarcane field, enriching heavy metals and organic pollutants by utilizing roots of the sticktight to remove the heavy metals and the organic pollutants, and meanwhile, inhibiting growth of other weeds by interplanting the sticktight; building an ostrich breeding base beside the sugarcane field for breeding ostriches, and breeding the ostriches with sugarcane waste generated bysugarcane planting and the sticktight, wherein the waste generated by sugarcane planting comprises sugarcane stems, sugarcane leaves, sugarcane tail tips and the like; and in addition, building a fishpond beside the ostrich breeding base for breeding fishes, directly diluting excrement of the ostriches in the ostrich breeding base with water, then enabling a mixture to flow into the fishpond for fish feeding, and using water in the fishpond for drip irrigation of the sugarcane field. By means of the method, the sugarcane and the sticktight are planted, the ostriches and the fishes are bred, the sugarcane field is repaired and improved, waste generated by sugarcane planting and ostrich and fish breeding is fully utilized, low input and high yield of the sugarcane field can be achieved, andthe ecological concept of cyclic utilization is met.

The invention provides a compound microbial agent suitable for saline-alkali soil in arid and semi-arid regions and application of the compound microbial agent. The compound microbial agent disclosed by the invention comprises alfalfa rhizobium, functional water-retaining peptide and drought-enduring bacteria, wherein the drought-tolerant bacteria are endophytic bacillus flexus CGMCC (China General Microbiological Culture Collection Center) No.21705, and the functional water retention peptide is prepared by fermenting bacillus licheniformis CGMCC No.8821. The compound microbial agent disclosed by the invention can be used for improving the activity of crop root systems and the drought resistance and saline-alkali resistance of crops, is particularly suitable for crop planting in arid and semi-arid climate regions, obviously improves the nitrogen fixation performance of crops under arid conditions, obviously improves the adaptive capacity of crop root systems under water drought and saline-alkali stress, improves the stress resistance of crops, and improves the yield of crops. The purposes of improving the soil performance and increasing the yield are achieved, and the method has important significance on improvement of the ecological planting environment of saline-alkali soil in arid and semi-arid regions and sustainable development of modern agriculture.

The invention discloses a mulberry and brown sugar healthcare beverage and a production method thereof. The beverage is produced from, by weight, brown sugar, dry powder of a ginger juice, red date powder, anthocyanin and freeze-dried mulberry powder. The production method comprises the following steps: mixing the brown sugar, the dry powder of the ginger juice and the red date powder to obtain a mixture A; removing metal impurities from the mixture A, and packaging the mixture A by a packaging bag to obtain a packaged product A; mixing the anthocyanin and the freeze-dried mulberry powder to obtain a mixture B; removing metal impurities from the mixture B, and packaging the mixture B by a packaging bag to obtain a packaged product B; packaging the packaged A and the packaged product B in a packaging bag to obtain a packaged product C; and allowing the packaged product C to go through an electron beam channel in order to carry out sterilization, and examining the packaged product C to obtain the mulberry and brown sugar healthcare beverage which is qualified packaged product C. The mulberry and brown sugar healthcare beverage has the advantages of good healthcare effect and good health preserving effect.

The invention relates to a preparation method of high-calcium organic fertilizer. The preparation method is characterized in that the low-temperature freeze drying technology is used to perform fast freeze drying on harvested Sedum aizoon L. which is a special plant extremely high in calcium content, the loss of calcium contained in the Sedum aizoon L. is prevented to a maximum extent, the calciumions contained in the Sedum aizoon L. are allowed to keep a free state, and accordingly the calcium ions can be easily absorbed and utilized by crops; the dried Sedum aizoon L. obtained after the freeze drying is crushed into power of 60-100 meshes to obtain high-calcium powder; according to different application manners, the high-calcium powder is added into thoroughly-decomposed farm manure toobtain base fertilizer, is directly added into edible fungi or soilless culture substrates to obtain high-calcium powder fertilizer or is soaked into water to obtain high-calcium liquid fertilizer after dregs are filtered and removed; high-calcium fertilizer produced according to organic standards is organic high-calcium fertilizer.

The invention provides a method for preparing fuel ethanol. In the method, banana or plantain is used as raw material and the fuel ethanol is obtained by conventional zymotechnique. The method of the invention can expand raw material resources of the fuel ethanol in a large scale, reduce production cost of the fuel ethanol and improve production efficiency, thus bringing about numerous social and economic benefits.

The invention discloses a breeding method of high-oleic-acid drought-tolerant peanuts, and belongs to the field of plant breeding. The method includes the following steps: (1) selecting a drought-tolerant peanut variety as a female parent, selecting a high-oleic-acid peanut variety as a male parent, and performing crossing so as to obtain an F1 generation with drought tolerance and high content ofoleic acid; (2) removing false hybrid from the F1 generation, and performing selfing so as to obtain an F2 generation; (3) screening single plants with high content of oleic acid and drought tolerance from the F2 generation, and performing selfing so as to obtain an F3 generation; (4) selecting stable and single plants with high content of oleic acid and drought tolerance from the F3 generation again, performing selfing so as to obtain an F4 generation, and carrying out variety tests on the plants of the F4 generation; and (5) performing selfing on the F4 generation for 4 consecutive generations so as to obtain an F5 generation, an F6 generation, an F7 generation and an F8 generation sequentially, wherein the F8 generation is the novel peanut variety with high content of oleic acid and drought tolerance. The novel peanut variety with both high content of oleic acid and drought tolerance is bred, and the technical problem is solved that high-oleic-acid peanuts are planted in hilly landand other dry areas.

The invention belongs to the technical field of crossbreeding, and discloses a crossbreeding method of phosphorus-efficient corn, which comprises the following steps: hybridizing a corn male parent and a corn first female parent to obtain hybrid combination F1-generation seeds; in the corn growth period, corn plants are treated for three times, and planting conditions are screened; under the planting condition obtained through screening, selfing the hybrid combination F1-generation seeds, screening specific plants with screening characters from selfed progenies, and selfing to obtain a second corn female parent; hybridizing the second female parent of the corn with a male parent of the corn to obtain new F1-generation seeds; the obtained new F1-generation seeds are pretreated, and the phosphorus-efficient corn seeds are obtained. According to the method, the second female parent of the corn is screened under the low-phosphorus and drought conditions, the obtained second female parent and hybrid seeds of the corn are high in phosphorus absorption effect and resistant to drought, and the prepared corn seeds are high in yield and high in resistance to severe environments and have the excellent characteristics of insect resistance, grass resistance, disease resistance, drought resistance and saline-alkaline tolerance.