14 results about "Flower induction" patented technology

The present application relates to the field of agricultural information technology and smart agriculture, and in particular to a dominant factor screening and litchi flowering rate prediction method based on a nonlinear model, which comprises the following technical solutions: collecting multi-dimensional original data of Feizixiao litchi in the flowering induction period; performing linear regression test on the original data, and starting a nonlinear analysis process when the fitting degree of the linear model is lower than a threshold value; constructing and training an XGBoost nonlinear regression model; using a SHAP method to interpret the model, calculating the average absolute SHAP value of each feature and sorting, and screening out nonlinear dominant factors; drawing a SHAP dependence graph for the dominant factors, and automatically determining the key threshold value affecting the flowering rate through curvature analysis; inputting the dominant factor data of the target year into the model, and outputting the flowering rate prediction value; the present application can effectively capture the nonlinear relationship between the influencing factors and the flowering rate, realize objective screening of the dominant factors and automatic identification of the key threshold value, significantly improve the flowering rate prediction accuracy, and provide a scientific basis for litchi production precision management.

The invention relates to the technical field of gardens, discloses a method for simulating seasonal change to induce flowering of davidia involucrata, and effectively solves the problem of flowering induction in non-original habitat cultivation of davidia involucrata. According to the scheme, a hormone-environment double-factor regulation model is established, so that the flowering induction success rate is remarkably increased. The whole induction period is shortened through the staged gradient treatment design, and plant physiological disorder is avoided. A dynamic monitoring and classification processing mechanism ensures synchronous development of plants in different physiological states, and reliable technical support is provided for large-scale production. The finally formed systematic treatment process enables the flowering process of davidia involucrata to be controllable and predictable, a new technical path is provided for protection of rare plants, and through combination of classification treatment and dynamic monitoring, different types of plants reach a unified nutrition reserve standard before entering a vernalization stage, and a reliable physiological foundation is laid for subsequent flowering induction.

This invention discloses a cultivation method to improve the propagation efficiency of Rhodiola rosea, relating to the fields of plant cultivation and seed propagation technology. The cultivation method includes: (1) Seedling stage: after being treated with hormones, the seeds are sown in a light substrate and cultivated for 6-12 months to obtain strong seedlings; (2) Hydroponic transplanting and flowering induction stage: the strong seedlings are transplanted to a hydroponic system, and photoperiodic induction is performed using an artificial light source with a red-blue spectrum ratio of 1:1, combined with the phased adjustment of nutrient solution and the spraying of exogenous hormones to synergistically induce reproductive growth; (3) Pollination and seed collection stage: the seeds are collected after assisted pollination. This invention shortens the seed-to-seed cycle of Rhodiola rosea from the traditional 6 years or more to 2-3 years through multi-factor synergistic regulation, significantly improving the flowering rate and seed yield per plant, increasing the propagation efficiency by more than 99%, and is applicable to different ecotype seed sources, with the advantages of strong operability and good universality.

The invention relates to the technical field of plant breeding, in particular to miRNA as well as a precursor gene and application thereof. The precursor gene comprises any one of the following: i) a nucleotide sequence as shown in SEQ ID NO.1; and ii) a nucleotide sequence which is obtained by adding, replacing or deleting one or more nucleotides from the nucleotide sequence shown in i) and is used for processing the same miRNA. The application comprises regulation and control of growth stage transformation or flowering induction of plants. According to the present invention, the novel miRNA and the precursor gene thereof, and the correlation between the miRNA and the plant growth stage transformation and the flowering induction are found through the research, the expression level of the miRNA or the precursor gene thereof in the plant is improved through the genetic engineering, the breeding or the botany means so as to promote the early flowering of the plant, such that the important application value in the plant breeding field is provided.

The invention discloses a physiological index dynamic monitoring system in a sugarcane flowering phase induction process, and relates to the technical field of agricultural intelligent monitoring, and the system comprises a data collection module which integrates multiple sensors to collect and transmit physiological and environmental data; the threshold calculation module is used for judging a flowering induction stage by using multi-stage feature matching and calculating a dynamic threshold in combination with parents and environmental factors; the regulation and control module is used for comparing data to trigger early warning, and linkage equipment regulation and control is performed if intervention is not performed; the interaction module is used for locally and cloud displaying data and analyzing and predicting the flowering phase in combination with parent growth period information and environmental factors; according to the invention, by integrating multiple sensors and LoRa transmission and combining multistage feature matching and dynamic threshold calculation, the physiological and environmental indexes of the sugarcane flowering phase are accurately monitored, the flowering induction stage is scientifically judged, and the monitoring comprehensiveness and accuracy are improved; meanwhile, a three-level early warning and equipment linkage regulation and control mechanism is constructed, multi-terminal interaction and ARIMA flowering phase prediction are matched, intelligent regulation and control and whole-process visual management are achieved, and the problem of regulation and control lag is solved.

The invention belongs to the technical field of cultivation and breeding, and particularly relates to a method for regulating vernalization of celery and inducing bolting and flowering, which comprises the following steps: selecting celery seedlings with 4-6 true leaves, and performing vernalization treatment to obtain celery plants; the vernalization treatment is light-dark alternate culture; the duration and temperature conditions are limited; after vernalization treatment, performing bolting and flowering induction on the celery plants; the bolting and flowering induction is light-dark alternate culture; and the duration and temperature conditions are limited. According to the method, the temperature and sunshine duration parameters are accurately regulated and controlled, so that the artificial controllable induction of bolting and flowering processes of different celery varieties is realized, the variety adaptation limitation in the prior art is thoroughly solved, the breeding period of the celery varieties is effectively shortened, and technical support is provided for rapid breeding of good celery varieties.

The present application relates to the technical field of plant growth and development regulation, and relates to a cultivation method for normal flowering and fruiting of winter (semi-winter) plants without low-temperature vernalization. The present application provides a cultivation method for normal flowering and fruiting of winter (semi-winter) plants without low-temperature vernalization, comprising the following steps: (1) sterilization and germination: after sterilization treatment, the plant seeds are germinated and cultivated in darkness to obtain plant seedlings; (2) vernalization-free cultivation: the plant seedlings are irradiated with the following light conditions in the vernalization-free cultivation, the light conditions comprise two or more of 400-500 nm, 600-700 nm and 720-750 nm, the light period adopts 16-22 h light / 2-8 h darkness, the light period temperature ranges from 20-28 DEG C, and the dark period temperature ranges from 18-26 DEG C. The present application actively replaces the sustained low temperature in the flowering induction process of winter plants by using light, a non-temperature environmental factor, thereby realizing exemption from the low-temperature vernalization stage.

The invention discloses a light source combination device and method for inducing sugarcane flowering, and relates to the technical field of sugarcane flowering induction, the device comprises a growth monitoring module, a light source regulation and control module, an environment monitoring module, a central control module and a mounting bracket; the growth monitoring module identifies the growth stage of the sugarcane, and the central control module is combined to control the light source regulation and control module to dynamically adjust the illumination intensity, so that the problem that the fixed illumination intensity is not matched with the requirements of different growth stages of the sugarcane is avoided, and accurate adaptation of the illumination intensity along with the growth of the sugarcane is realized; normal physiological activities of sugarcanes in various growth stages are guaranteed, flower bud differentiation efficiency is improved, the light source units are installed in a non-uniform distribution mode, illumination requirements of different parts of sugarcane plants are met, the problem of insufficient illumination utilization caused by uniform light source distribution of an existing device is solved, it is guaranteed that all the parts of the plants can obtain proper illumination, and the quality of the plants is improved. The flowering induction effect is further promoted.

The invention relates to the technical field of plant growth and development regulation and control, in particular to a cultivation method for normal flowering and fruiting of plants without low-temperature vernalization. The invention provides a cultivation method for normal flowering and fruiting of winter (semi-winter) plants without low-temperature vernalization, which comprises the following steps: (1) disinfecting and germinating: disinfecting plant seeds, and germinating and cultivating in the dark to obtain plant seedlings; (2) non-vernalization cultivation: in the non-vernalization cultivation, the plant seedlings are irradiated under the following illumination conditions: two or more of 400-500 nm, 600-700 nm and 720-750 nm, the light period adopts 16-22 h illumination / 2-8 h darkness, and the temperature range of the light period is 20-28 DEG C; the temperature range of the dark period is 18-26 DEG C. According to the method, illumination which is a non-temperature environmental factor is used for actively replacing continuous low temperature in the winter plant flowering induction process, so that exemption of the low-temperature vernalization stage is realized.

This invention discloses a method for promoting and controlling the cultivation of potted peonies for the Lunar New Year in Zhejiang Province, comprising the following steps: (1) Potting: Selecting peony division seedlings for potting from November 1st to November 5th; (2) Pretreatment: After potting, water thoroughly and place at room temperature for 7-15 days; (3) Low-temperature treatment: Place the pretreated plants, along with their pots, in a cold storage for low-temperature treatment for 35 days, during which no light, watering, or fertilization is required; (4) Greenhouse flower induction: After the low-temperature treatment, place the plants in a greenhouse and allow them to transition to room temperature for 2 days, then induce flowering for 47 days; (5) Hormone treatment: When the flower bud diameter reaches 10mm-15mm, apply gibberellin to the junction of the flower bud and the flower stalk; (6) Fertilizer and water management: In the greenhouse, perform routine daily management of the plants and continue greenhouse cultivation until flowering. This scheme achieves the regulation of pink Hawaiian peonies to bloom during the Spring Festival in Zhejiang Province.

The invention provides a method for regulating and controlling flowering quality of floribunda camellia, and relates to the field of camellia planting. The regulation and control method comprises the following steps in the vegetative growth period of the camellia fragile: spraying a young shoot inducer to container seedlings of the camellia fragile in the vegetative growth period, and synchronously applying a growth-promoting nutrition supply agent; in the reproductive growth period of the camellias fragiena, the following operations are carried out: synchronously spraying a flowering inducer and a flower bud growth agent on the whole camellias fragiena container seedling in the reproductive growth period, and synchronously applying a nutrient supply agent for promoting the flower type on the camellias fragiena container seedling. Spraying a new shoot inducer, a flowering inducer and a flower bud growth agent until plant stems are wet and water drops drop from leaf tips. By means of the method for regulating and controlling the flowering quality of the floribunda camellia, the flowering quality of the container seedlings of the floribunda camellia can be effectively and remarkably improved, and the regulating and controlling purposes of improving the quality such as a large number of flower buds and the like are achieved.

The application provides an alfalfa accelerated generation breeding method, which comprises (1) seed germination: alfalfa seeds are cultured for 1 week to germinate to obtain seedlings; (2) seedling culture: the seedlings are hydroponically cultured for 1-2 weeks, and then transplanted into vermiculite for culture for 2 weeks; (3) culture in the seedling stage: culture in the vermiculite for 4 weeks; (4) flowering induction: induction for 1-3 weeks to the full flowering stage; (5) full flowering stage culture: culture for 3-4 weeks to the end flowering stage; (6) seed maturation: culture for 4 weeks to seed maturation. The method can effectively shorten the time required for alfalfa breeding by adjusting the culture conditions, light conditions and pollination parameters, so that alfalfa can complete a generation in 3-4 months in the room.

This invention discloses the application of the MdNAC29 protein and its encoding gene in regulating plant flowering time, belonging to the field of biotechnology. This invention discovers a novel gene that regulates plant flowering time. MdNAC29 Genes, through overexpression within the plant MdNAC29 Genes can efficiently regulate the expression of genes in flowering-related pathways in plants, break the physiological blockage in the transition from vegetative growth to reproductive growth, significantly shorten the flowering induction time, effectively promote the early completion of the entire process of flower bud differentiation and flower organ formation, achieve early flowering, and significantly shorten the overall growth cycle.

The invention belongs to the technical field of postharvest preservation treatment of fresh cut flowers, and discloses a postharvest flower forcing and preservation synergetic comprehensive treatment method for cut babysbreath flowers. The method comprises the following steps: S1, preparation before treatment; s2, harvesting cut flowers; s3, pretreating the cut flowers; s4, flower forcing and fresh-keeping cooperative treatment; s5, quality detection and evaluation; and S6, packaging, transporting and storing. By adopting the method, the problems of asynchronous blooming and quality reduction after babysbreath cut flowers are picked are solved, the synchronous blooming rate of the babysbreath cut flowers within about 6 days is greater than 80%, the bottle insertion period is greater than or equal to 21 days, and the commodity percent of pass and the bottle insertion life are remarkably improved. The cut babysbreath flowers processed by flower forcing and fresh keeping in a cooperative mode are larger, neater and whiter, small flowers are not prone to falling off, and the overall ornamental value is high. In addition, the technology is high in operability, clear in process and clear in parameter, loss is reduced, the quality of terminal products and the satisfaction degree of consumers are improved, the method is easy to implement in an existing flower post-harvest treatment process, and the method has wide development prospects in production, popularization and application of fresh cut flowers.