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136 results about "Bolting" patented technology

Bolting is the production of a flowering stem (or stems) on agricultural and horticultural crops before the crop is harvested, in a natural attempt to produce seeds and reproduce. These flowering stems are usually vigorous extensions of existing leaf-bearing stems, and in order to produce them, a plant diverts resources away from producing the edible parts such as leaves or roots, resulting in a poor quality harvest. Plants that have produced flowering stems in this way are said to have bolted. Crops inclined to bolt include lettuce, basil, beetroot, brassicas, spinach, celery, onion, and leek.

Hybrid spinach variety 51-335 rz

The present invention relates to a Spinacia oleracea seed designated 51-335 RZ, which exhibits late bolting, savoy mature leaves with an ovate shape, and resistance to downy mildew (Peronospora farinosa f.sp. spinaciae) races Pfs1 to Pfs13 and strain UA4410. The present invention also relates to a Spinacia oleracea plant produced by growing the 51-335 RZ seed. The invention further relates to methods for producing the spinach cultivar, represented by spinach variety 51-335 RZ.
Owner:RIJK ZWAAN ZAADTEELT & ZAADHANDEL BV

Cultivation method capable of preventing Angelica sinensis from premature bolting

InactiveCN103329730AShorten the production cycleEliminate the need for seedling transplantingHorticultureAngelica Sinensis RootBolting
The invention provides a cultivation method capable of preventing Angelica sinensis from premature bolting. The cultivation method comprises the following steps: deeply plowing soil and fertilizing at a planting area; sowing when the temperature of soil layer of 5 cm below the ground surface is 6-8 DEG C, wherein the row spacing is 20-25 cm, opening shallow gullies with the depth of 2-3 cm, after sowing, covering wet soil, and then covering wheatgrass, wherein the seedling density per hectare is 0.45-0.75 million plants, and the plant spacing is 5-10 cm; when the height of seedling is 3-4 cm, gapping and establishing so as to keep the plant spacing and the seedling density; sowing in late October of the present year, digging and sunning when the aerial part is withered so as to obtain the Angelica sinensis. According to the cultivation method, under the precondition of ensuring the yield and quality of Angelica sinensis, the Angelica sinensis is prevented from premature bolting, the seedling and transplantation procedures of Angelica sinensis are omitted, the production period of Angelica sinensis is shortened, 25% of seedling and seedling storage land is saved, and 120-130 days of production period of Angelica sinensis are shortened.
Owner:GANSU AGRI UNIV

Equipment and method for collecting industrially cultivated pelagic eggs

The invention relates to equipment and a method for collecting industrially cultivated pelagic eggs. The equipment comprises a water inlet tube, a drainage tube, an anti-flow drainage tube, a glass fiber reinforced plastic groove and a pelagic egg collecting net cage. The use method of the equipment comprises the following steps that water for cultivation flows into a cultivation pool through the water inlet tube to form a gentle water surface circumfluence; and the pelagic eggs are driven to be discharged into the pelagic egg collecting net cage outside the pool through the drainage tube. The mesh of the pelagic egg collecting net cage is bolting-silk of 260-300 meshes and is located in the glass fiber reinforced plastic groove. The pelagic eggs are blocked by the mesh and collected in the net cage while water is discharged through the drainage tube of the glass fiber reinforced plastic groove. In order to prevent overflow of water in the cultivation pool, an anti-flow drainage tube is arranged close to the drainage tube in the cultivation pool. The tube orifice in the pool is higher than the water level of the pool but lower than the maximum height of the pool wall. The tube orifice outside the pool is located in the pelagic egg collecting net cage. Shown by practices, the invention can rapidly and effectively collect the pelagic eggs in the collecting pool and has the advantages of small mechanical damage to eggs in the collecting process and high collecting efficiency which reaches above 95% and low facility improvement cost and easy popularization.
Owner:YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI

FLC1 specific SNP molecular marker based on competitive allele specificity PCR technology and application

The invention discloses an FLC1 specific SNP molecular marker based on the competitive allele specificity PCR technology and an application, and provides an application of polymorphism or genotype matter for detecting FLC1-13859895G / ASNP locuses in a Chinese cabbage genome in authenticating or assisting in authenticating the bolting state of Chinese cabbages. The experiment proves that a developed SNP marker specific primer can well classify bolting characters, high application value is achieved, and preselection and assistant breeding of bolting resisting genetic materials can be achieved.
Owner:BEIJING ACADEMY OF AGRICULTURE & FORESTRY SCIENCES

Spring Chinese cabbage, summer-autumn eggplant and autumn-winter asparagus lettuce three-season-in-one-year anti-season vegetable efficient cultivation method

InactiveCN103460930AMeet needsSignificant production cycleHorticultureBoltingAsparagus
The invention discloses a spring Chinese cabbage, summer-autumn eggplant and autumn-winter asparagus lettuce three-season-in-one-year anti-season vegetable efficient cultivation method. In a gap date, first-season spring Chinese cabbages are sown in advance from the first ten-day period of February to the beginning of March, a setting date ranges from the first ten-day period of March to the beginning of April, and the first-season spring Chinese cabbages come into the market from the end of April to the middle ten-day period of May. Second-season summer-autumn eggplants are sown from the last ten-day period of March to the end of March, a setting date ranges from the last ten-day period of May to the end of May, and the second-season summer-autumn eggplants are harvested from the last ten-day period of July to the last ten-day period of September. Third-season autumn-winter asparagus lettuces are sown from the end of August to the first ten-day period of September, a setting date ranges from the end of September to the first ten-day period of October, and third-season autumn-winter asparagus lettuces are harvested from the last ten-day period of December to the beginning of January. Due to the fact that bolting-resistant varieties and the gap date are scientifically selected, a sowing data, the setting data and a seedling cultivation mode are improved, the early bolting problem of the spring Chinese cabbages is solved, three kinds of vegetables can come into the market in a slack season in one year in an anti-season mode, the demands of consumers are met, and the economic benefit is very remarkable.
Owner:GUIZHOU HORTICULTURAL INST (GUIZHOU HORTICULTURAL ENG TECH RES CENT)

Hybrid spinach variety 51-332 rz

The present invention relates to a Spinacia oleracea seed designated 51-332 RZ, which exhibits medium bolting, an erect plant habit, smooth mature leaves with a three-sided shape and resistance to downy mildew (Peronospora farinosa f. sp. spinaciae) races Pfs1 to Pfs13 and strain UA4410. The present invention also relates to a Spinacia oleracea plant produced by growing the 51-332 RZ seed. The invention further relates to methods for producing the spinach cultivar, represented by spinach variety 51-332 RZ.
Owner:RIJK ZWAAN ZAADTEELT & ZAADHANDEL BV

Breeding and propagation method for Atlantic deep sea scallops

The invention relates to an aquaculture method of deep sea scallops, in particular to a breeding and propagation method for Atlantic deep sea scallops. The method comprises the steps that introduction, artificial breeding and aquaculture of the deep sea scallops are carried out, parent scallops are mature after 45-50 days maturity promoting and lay eggs, and after most larvae grow into D-shaped larvae, a bolting cloth net cage is used for selecting optimal larvae to a new pond for cultivation; the growth rate of the cultured larvae is far higher than that of the larvae cultured in a nursery ground in Quebec of Canada at the same time, eyespots are generated on most larvae 16-17 days after the larvae are fertilized, adhering substances are arranged at the 18th day, after the adhering substances are arranged for 10 days, the adhering substances are taken out and hung in natural sea ears for larva protection; the deep sea scallops meet commercial specification when the cultivated average specification reaches 8 centimeters, and the deep sea scallops achieve sexual maturity. According to the method, the Atlantic deep sea scallops are introduced into China sea areas for the first time, the scallop culture species are expanded, and construction of modern ocean ranches is promoted.
Owner:DALIAN CHANGHAI ZHENLU AQUATIC PROD

Hybrid spinach variety 51-707 rz

The present invention relates to a Spinacia oleracea seed designated 51-707 RZ, which exhibits early bolting, erect plant habit, semi-savoy leaves, and resistance against downy mildew (Peronospora farinosa f. sp. spinaciae) races Pfs1 to Pfs13 and strain UA4410. The present invention also relates to a Spinacia oleracea plant produced by growing the 51-707 RZ seed. The invention further relates to methods for producing the spinach cultivar, represented by spinach variety 51-707 RZ.
Owner:RIJK ZWAAN ZAADTEELT & ZAADHANDEL BV

Hybrid spinach variety 51-333 rz

The present invention relates to a Spinacia oleracea seed designated 51-333 RZ, which exhibits medium bolting, an erect plant habit, ovate first foliage leaves, semi-savoy mature leaves and resistance to downy mildew (Peronospora farinosa f. sp. spinaciae) races Pfs1 to Pfs13 and strain UA4410. The present invention also relates to a Spinacia oleracea plant produced by growing the 51-333 RZ seed. The invention further relates to methods for producing the spinach cultivar, represented by spinach variety 51-333 RZ.
Owner:RIJK ZWAAN ZAADTEELT & ZAADHANDEL BV

Sexual polyploidization breeding method of tetraploid Brassica campestris ssp.chinensis Makino

The invention belongs to the field of crop breeding and discloses a sexual polyploidization breeding method of tetraploid Brassica campestris ssp.chinensis Makino. The method comprises the following steps of: treating flower buds by using solution of colchicine in the bolting period of the Brassica campestris ssp.chinensis Makino to induce the flower buds to generate 2n male gametes; and performing manual sexual polyploidization cross breeding on a tetraploid male sterile line serving as a female parent and 2n male gamete-containing diploid obtained by the induction of the solution of colchicine serving as a male parent in a blooming period to obtain the tetraploid Brassica campestris ssp.chinensis Makino. In the method, a sexual polyploidization breeding approach of hybridizing the male sterile line of the tetraploid Brassica campestris ssp.chinensis Makino with the diploid Brassica campestris ssp.chinensis Makino which generates 2n gametes after induction is used for the first time to obtain a new species of the tetraploid Brassica campestris ssp.chinensis Makino which has wider genetic diversity and higher seed setting rate compared with the autotetraploid of asexual polyploidization. The new tetraploid of the invention has the characteristics of polyploid such as largeness, disease resistance and cold resistance, high quality, and the properties of a diploid male parent.
Owner:NANJING AGRICULTURAL UNIVERSITY

Paddy rice NRT 1.1A gene and application of encoded protein of paddy rice NRT 1.1A gene to improve plant yield in breeding

The invention discloses a paddy rice NRT 1.1A gene and an application of encoded protein of the paddy rice NRT 1.1A gene to improve the plant yield in breeding. Concretely, protein or an encoded genethereof is applied to regulate the growth and development of a plant. The growth and development is reflected as the single plant yield and / or the strain height and / or grain number and / or flowering time and / or bolting time and / or size of a rosette leaf. The protein is any one of (1) protein having the amino acid sequence shown as in the sequence 1 in a sequence list; and (2) protein which is derived from the sequence 1 by replacing and / or deleting and / or adding one or more amino acid residues in and / or from and / or to the amino acid sequence in the sequence 1 in a sequence list, and is relatedto control of the growth and development of a plant. The paddy rice NRT 1.1A gene and encoded protein are of great importance in breeding of new high-yield paddy rice variety.
Owner:INST OF GENETICS & DEVELOPMENTAL BIOLOGY CHINESE ACAD OF SCI

Application of soybean E3 ubiquitin ligase gene GmPUB2 capable of regulating flowering of plants

The invention discloses an application of soybean E3 ubiquitin ligase gene GmPUB2 capable of regulating flowering of plants, namely, the application of the oybean E3 ubiquitin ligase gene GmPUB2 in regulating flowering of plants. A late-flowering plant is obtained after the GmPUB2 gene is transplanted into a target plant through a plant expression vector; an early-flowering plant is obtained after the GmPUB2 gene is transplanted into a target plant through a gene silencing carrier; after the target gene GmPUB2 is transplanted into arabidopsis thaliana, compared with the wild arabidopsis thaliana, the results show that the bolting time and the flowering time of the transgenic plant are obviously later than those of the wild plant, namely, the GmPUB2 gene has the function of delaying the flowering of the plants. With the established GmPUB2 gene silencing carrier to silence the transgenic arabidopsis thaliana with over-expressed target gene GmPUB2, the results show that the flowering time of the plant after silencing is obviously earlier than that of a control plant.
Owner:NANJING AGRICULTURAL UNIVERSITY

Method for increasing nitrogen utilization efficiency of rape

The invention discloses a method for increasing nitrogen utilization efficiency of rape, and provides a method for increasing the nitrogen utilization rate by reducing nitrate nitrogen content in rape plants. The method comprises the following steps of: culturing rape seedlings in a glass net chamber by using Hoagland complete nutrient solution (the nutrient solution comprises 5 mmol / L of KNO3, 1 mmol / L of KH2PO4, 7 mmol / L of MgSO4, 5 mmol / L of Ca(NO3)2.4H2O, 3 mmol / L of Fe-EDTA, 0.5 mmol / L of B, 0.5 mmol / L of Mn, 0.05 mmol / L of Zn, 0.02 mmol / L of Cu and 0.01 mmol / L of Mo) through soil culture; seeding in September in the same year; transplanting in a big field after one month; complementarily applying 5 kg of urea for every mu after transplanting and reviving at the seedling stage; irrigating at a proper stage and dressing bolting flower fertilizer; dressing 7.5 kg of budding bolting fertilizer urea per mu in coordination with spring irrigation in spring; and uniformly spraying inhibitor solution simultaneously containing 50 mmol / L of Bafilomycin A1 and 20 mumol / L of DCCD (N, N'-dicyclohexylcarbodiimide) at the beginning of florescence of rape once every six days until a pod development stage begins. The content of nitrate nitrogen in the plants can be obviously reduced, and further the nitrogen utilization efficiency of the rape plants is obviously increased.
Owner:HUNAN AGRICULTURAL UNIV

A method for planting pickled mustard with high yield

The invention discloses a high-yield planting method of mustards in established Italian poplar forests. The method is characterized by comprising the following steps: (1) selecting Sichuan and Zhejiang mosaic mustard varieties which have the characteristics of good lump shape, obliquely upward leaf, late bolting, strong cold resistance, harmful bacterium resistance, high yield and high quality; (2) clearing up forest lands; (3) carrying out tillage-free planting; (4) carrying out drought prevention and fertilization; and (5) timely harvesting. In the method disclosed by the invention, the resources such as precious lands and sunshine and the like in established forests are fully used so as to vigorously develop green mustards, which both ensures that the quality of forest trees and the wood production rate are high, and ensures that the quality of mustards, the yield of mustards and the forest farm benefit are high, thereby enriching the social wealth, increasing the earnings of farmers, consolidating the forestation effect, and speeding up the forest and ecological development speed.
Owner:CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY

Molecular marker, primer pair and molecular marking method used for identifying flowering time of brassica oleracea and application of molecular marker, primer pair and molecular marking method

The invention belongs to the field of molecular biology, and particularly relates to a molecular marker, a primer pair and a molecular marking method used for identifying the flowering time of brassica oleracea and application of the molecular marker, the primer pair and the molecular marking method. The molecular marker and the primer pair can be used for quick identification of a brassica oleracea breeding material and variety which are resistant to bolting and flower late and for the marker assisted selection of transfer breeding of the material which is resistant to bolting and flowers late, and are of great significance in brassica-oleracea-like vegetable breeding practice and theoretical research on bolting resistance.
Owner:SOUTHWEST UNIVERSITY

Wild harvesting method of Zostera marina L. seeds

The invention relates to a wild harvesting method of Zostera marina L. seeds. The method comprises the following steps: at a low-tide stage when peels on first spathe inflorescences of most flower lateral branches are initially cracked, harvesting flowering branches, putting the harvested flowering branches into 20-mesh bolting silk string bags till each string bag is filled by a half, tightening the mouths of the string bags, connecting the plurality of string bags together, and locally putting the connected string bags back into sea water; 15 days later, taking the string bags out and cleaning substances attached to the surfaces of the string bags; about 30 days later, taking the string bags out, locally pouring the flowering branches in the string bags into a plastic water bucket, adding sea water, stirring vigorously, and picking out residual flowering branches on an upper layer after seeds fall to the bottom of the bucket; adding sea water repeatedly, stirring, and pouring out immature seeds floating on the upper layer; and filtering large shellfishes out by using a 10-mesh mesh sieve in sea water, filtering small shellfishes and residues out by using a 30-mesh mesh sieve, and selecting plump Zostera marina L. seeds. By using the wild harvesting method, a high seed harvesting rate is ensured under the condition of low cost, and damages to populations caused by harvesting of the flowering branches are reduced to the maximum extent. The wild harvesting method can be applied to any Zostera marina L. growing sea area.
Owner:山东大学(威海)

Lettuce variety 45-171 RZ

InactiveUS9125374B2Angiosperms/flowering plantsBremia lactucaePemphigus bursarius
The present invention relates to a Lactuca sativa seed designated 45-171 RZ, which exhibits a combination of traits including resistance to downy mildew (Bremia lactucae) races B1:1 to B1:28, CA-I, CA-IIA, CA-IIB, CA-III, CA-IV, CA-V, CA-VI, CA-VII, CA-VIII, currant-lettuce aphid (Nasonovia ribisnigri) biotype Nr:0, lettuce mosaic virus (LMV) race LMV:1, and root aphids (Pemphigus bursarius), as well as very slow bolting. The present invention also relates to a Lactuca sativa plant produced by growing the 45-171 RZ seed. The invention further relates to methods for producing the lettuce cultivar, represented by lettuce variety 45-171 RZ.
Owner:RIJK ZWAAN ZAADTEELT & ZAADHANDEL BV

Hemerocallis fulva forcing cultivation method

ActiveCN113079997APromotes spring floweringEarly boltingFlowers cultivationGrowth substratesAnthesisBolting
The invention provides a hemerocallis fulva forcing cultivation method, and belongs to the technical field of flower cultivation. According to the method, from October of each year to the end of January of the next year, hemerocallis fulva buds with the seedling age larger than 6 months are selected and cut off from the base of a stock plant, root systems are cut back to enable the length of the root systems to be 8-10 cm, and leaves are cut back to enable the height of the leaves to be smaller than 8 cm; and hemerocallis fulva seedlings are transplanted into the matrix, watering is conducted, and seedling maintenance management is conducted. According to the method, after the seedlings are cut back, the seedlings are potted to promote flowering, so that the potted hemerocallis fulva can bolt within 100-110 days, the bolting rate is 100%, the potted hemerocallis fulva can bloom within 120-130 days, and the flowering uniformity reaches 85% or above; and by means of the method, the flowering phase of the hemerocallis fulva can be advanced to spring, the hemerocallis fulva is bright in herbaceous perennial root flower exhibition, and market popularization of the hemerocallis fulva is facilitated.
Owner:浙江省园林植物与花卉研究所

Asparagus lettuce cultivation method

The invention discloses an asparagus lettuce cultivation method, and relates to the technical field of vegetable planting. The invention especially relates to an asparagus lettuce planting method. With the method provided by the invention, soil nutrition is enhanced, and an antibacterial effect is provided. The method is suitable for asparagus lettuce growth. The method is characterized in comprising the following steps: 1, an improved variety is selected, wherein a late-maturing spring asparagus lettuce variety that can hardly bolt is selected; 2, a sowing time is determined, wherein greenhouse seedling raising of spring asparagus lettuce is carried out from December to March, and open field seedling raising is carried out from mid-February to late March; 3, spring asparagus lettuce field planting is carried out, wherein field planting is usually carried out in mid-December and preferably on sunny days while the soil is moist, such that seedling root damage can be reduced; 4, fertilizer and water management is reinforced, wherein an overall principle for fertilization is that a base fertilizer should be heavily applied and top dressing should be lightly and frequently applied; and 5, an asparagus lettuce harvesting standard is that an appropriate harvesting time is that when heart leaves are aligned with outer leaves or before squaring. If harvesting is carried out too early, yield is influenced. If harvesting is carried out too late, stem nutrients are consumed, and bolting, flowering, hollowing and stem bark thickening phenomena appear, such that quality is influenced.
Owner:李威

Hybrid spinach variety 51-518 RZ

The present invention relates to a Spinacia oleracea L. seed designated 51-518 RZ, which exhibits a combination of traits including early bolting, a semi-erect plant habit, smooth mature leaves, field resistance against leaf spot diseases and resistance to downy mildew (Peronsopera farinosa f. sp. spinaciae) races Pfs 1 to 12 and Pfs 14. The present invention also relates to a Spinacia oleracea plant produced by growing the 51-518 RZ seed. The invention further relates to methods for producing the spinach cultivar, represented by spinach variety 51-518 RZ.
Owner:RIJK ZWAAN ZAADTEELT & ZAADHANDEL BV

Plant heat-resistance gene JAZ5A and use thereof

The present invention provides a heat-resistance plant gene JAZ5a and use thereof. The inventors of the present invention isolated for the first time a heat resistance gene from the plant of Brassica spp., which can greatly improve the heat-resistance ability of the plant, especially in the bolting stage. The present invention further provides a protein encoded by said gene and its preparation method, vectors and host cells containing said gene, and a method for preparing a transgenic plant containing said gene.
Owner:SHANGHAI INST OF BIOLOGICAL SCI CHINESE ACAD OF SCI

Astragalus sinicus LHY gene and application thereof

ActiveCN111171127ADelayed floweringWith adjustable flowering timePlant peptidesFermentationBiotechnologyBolting
The invention provides an astragalus sinicus LHY gene and application thereof. The LHY gene of astragalus sinicus and a sequence of a protein encoded by the LHY gene are shown in SEQ ID NO: 1 and 2. The LHY gene is cloned from the astragalus sinicus for the first time, and the LHY gene is verified to have a function of regulating and controlling plant flowering, in particular, delaying plant flowering, in arabidopsis thaliana through an agrobacterium-mediated genetic transformation method. The LHY transgenic arabidopsis thaliana shows early bolting and early flowering, bolting days are 18.36 days later than wild type, and flowering days are 20.72 days later than wild type. This indicates that LHY gene of astragalus sinicus is closely related to flowering, and has a function of regulating flowering time. The gene is applied to plant property improvement, and has good application prospect. The LHY gene and the encoded protein thereof provide valuable resources for cultivating new plant varieties.
Owner:ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES

Selenium-rich oilseed rape planting method

The invention relates to the technical field of oilseed rape planting, in particular to a selenium-rich oilseed rape planting method. The selenium-rich oilseed rape planting method comprises the steps that soil preparation is carried out and a base fertilizer is applied; rape seeds are soaked; the treated rape seeds are sown, and after sowing, the rape seeds are covered with nutrient soil which is prepared by fermenting astragalus sinicus and humic acid and compounding the fermented rape seeds with plant ash; topdressing is carried out, specifically, urea and monopotassium phosphate are topdressed in a 3-4 leaf stage of rape seedlings; a selenium-rich foliar fertilizer is uniformly sprayed once in the early stage of the bud and bolting stage of the oilseed rape, and the selenium-rich foliar fertilizer is prepared from the following raw material components in parts by weight: 2-4 parts of sodium selenite, 8-12 parts of chitosan, 6-8 parts of citric acid, 2-4 parts of r-aminobutyric acid, 3-5 parts of L-calcium aspartate, 12-18 parts of potassium chloride, 3-5 parts of erythritol and 200-300 parts of water; selenium-enriched foliar fertilizer is sprayed once in the flowering stage and the initial stage of seed setting correspondingly; and harvesting is carried out. According to the selenium-rich oilseed rape planting method, oilseed rape growth can be promoted, absorption of oilseed rape to selenium can be improved, and therefore, the selenium content of rapeseeds is increased; and meanwhile, the lodging resistance of the oilseed rape can be enhanced, and the yield of the rapeseeds is increased.
Owner:桂林市农业科学研究中心

Hybrid spinach variety 51-706 RZ

The present invention relates to a Spinacia oleracea seed designated 51-706 RZ, which exhibits medium bolting, semi-erect plant habit, semi-savoy mature leaves, and resistance to downy mildew (Peronospora farinosa f. sp. spinaciae) races Pfs1 to Pfs13. The present invention also relates to a Spinacia oleracea plant produced by growing the 51-706 RZ seed. The invention further relates to methods for producing the spinach cultivar, represented by spinach variety 51-706 RZ.
Owner:RIJK ZWAAN ZAADTEELT & ZAADHANDEL BV

Lettuce variety 41-521 rz

The present invention relates to a Lactuca sativa seed designated 41-521 RZ, which exhibits a combination of traits including resistance against downy mildew (Bremia lactucae Regel) races B1:1 to B1:26, B1:28, B1:32, Ca-I to Ca-VIII, resistance against currant-lettuce aphid (Nasonovia ribignisi) biotype Nr:0, as well as intensely red leaves with a solid main vein, narrow base leaves and very slow bolting. The present invention also relates to a Lactuca sativa plant produced by growing the 41-521 RZ seed. The invention further relates to methods for producing the lettuce cultivar, represented by lettuce variety 41-521 RZ.
Owner:RIJK ZWAAN ZAADTEELT & ZAADHANDEL BV

A method for repairing cadmium-contaminated farmland soil by using rapeseed-middle rice rotation

The invention discloses a method for remediating cadmium-contaminated farmland soil by utilizing rape-middle-season rice rotation. The method comprises the following steps: in a first year, soil preparation is performed on the cadmium-contaminated farmland soil to be remediated, an activated base fertilizer is applied to the soil, and Cd-hyperaccumulation rape seeds are sown in a broadcast sowing manner; a foliar activator is sprayed to rapes in the bolting and flowering stages of the rapes; in a second year, the rapes are harvested; after the rapes are harvested, a passivation conditioning agent is applied into the soil, harrowing and waterflooding are performed uniformly, cadmium low-accumulation middle-season rice seeds are directly sown into the cadmium-contaminated farmland soil, and cultivation management is performed; in the tillering, booting and grain-filling stages of middle-season rice, a foliar inhibitor is sprayed to the middle-season rice; and after the rice is ripened, the middle-season rice is harvested. The method provided by the invention adopts the Cd-hyperaccumulation rape and cadmium low-accumulation middle-season rice rotation system, the system cooperates with the activated base fertilizer, the foliar activator, the passivation conditioning agent and the foliar inhibitor, so that the absorption of cadmium in the soil to be remediated by the rapes and the rice is significantly improved, and the remediation effect on the cadmium-contaminated farmland soil is further improved.
Owner:ZHEJIANG UNIV

DNA (deoxyribonucleic acid) molecular markers for identifying early bolting of angelica sinensis and application of DNA molecular markers

The invention discloses DNA (deoxyribonucleic acid) molecular markers for identifying early bolting of angelica sinensis and application of the DNA molecular markers. According to the invention, the difference of early bolting angelica sinensis and normal angelica sinensis in genome level is studied through an amplified fragment length polymorphic analysis technology, specific molecular marker fragments of the early bolting angelica sinensis are obtained, the sequences of differential fragments are analyzed through a PCR (Polymerase Chain Reaction) technology, and three DNA molecular markers are obtained. According to the invention, AFLP (Amplified Fragment Length Polymorphism) is adopted to screen the molecular markers of the angelica sinensis related to the early bolting, establishment and optimization are performed through a large number of experiments, an AFLP reaction and silver staining reaction system applicable to angelica sinensis seeds is obtained, a clear DNA fingerprint is obtained, and molecular linkage markers of the early bolting character of the angelica sinensis are obtained by screening. Through the invention, the obtained DNA molecular markers by optimization are good in stability and repeatability, can be applied to germplasm identification of the early bolting angelica sinensis, and has significance for breeding an angelica sinensis variety which can resist early bolting.
Owner:NANJING UNIVERSITY OF TRADITIONAL CHINESE MEDICINE

Bolting-flower-feeding multipurpose planting method for oilseed rape bolt

The invention belongs to the technical field of crop cultivation, and particularly relates to a bolting-flower-feeding multipurpose planting method for oilseed rape bolt. The planting method is reasonable and high in operability, the high-quality early-maturing oilseed rape bolt special variety oilseed rape bolt 929 and a multi-factor matched cultivation method for optimizing the density, the fertilization level, the sowing time and the like are utilized, the method can be suitable for a large number of oilseed rape planting areas, the oilseed rape bolt has the comprehensive advantages of being high in yield, good in taste, high in resistance, high in nutritive value and the like, the oilseed rape bolt can appear on the market in late November, and high-quality fresh bolted vegetables can be provided for slack seasons of bolted vegetables; the flowering phase can be delayed by 7-10 days through multiple times of bolting picking, and the development of the tourist industry can be promoted; and the oilseed rape bolt can be harvested as green feed in green pod phase, and the method can promote the development of the breeding industry, realizes the bolting-flower-feeding multipurpose planting of the oilseed rape bolt, greatly improves the income of farmers in a planting area, promotes the fusion of the first industry, the second industry and the third industry, and has remarkable economic and social benefits.
Owner:常德市农林科学研究院

Rapid allium fistulosum bolting evaluation and classification method

PendingCN111345212AShorten the Bolting Evaluation PeriodAccelerating the breeding process for bolting resistanceBulb cultivationBoltingVernalization
The invention discloses a rapid allium fistulosum bolting evaluation and classification method which comprises the following steps: 1, preserving allium fistulosum material seeds to be identified in arefrigerator; 2, selecting mature and full seeds, and performing seeding; 3, performing transplanting, namely after seeding, transplanting allium fistulosum seedlings with 3 true leaves into a cultivation tank; 4, putting the cultivation tank into a manual climatic box, and performing low-temperature vernalization; 5, performing bolting and flowering management; and 6, investigating bolting indexes, and performing bolting evaluation. The method has the advantages that a conventional allium fistulosum bolting identification and evaluation cycle is shortened, and the allium fistulosum bolting breeding progress can be accelerated. Limits of natural environments are avoided, the operation feasibility is high, bolting identification and evaluating grading is clear, and the accuracy rate is high.
Owner:LIAONING ACAD OF AGRI SCI

Hybrid spinach variety 51-707 RZ

The present invention relates to a Spinacia oleracea seed designated 51-707 RZ, which exhibits early bolting, erect plant habit, semi-savoy leaves, and resistance against downy mildew (Peronospora farinosa f. sp. spinaciae) races Pfs1 to Pfs13 and strain UA4410. The present invention also relates to a Spinacia oleracea plant produced by growing the 51-707 RZ seed. The invention further relates to methods for producing the spinach cultivar, represented by spinach variety 51-707 RZ.
Owner:RIJK ZWAAN ZAADTEELT & ZAADHANDEL BV
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