8 results about "Root number" patented technology

This invention discloses a peony PsLBD12 Genes and their application in regulating root development PsLBD12 The nucleotide sequence of the gene is shown in SEQ ID NO.1, and the amino acid sequence of its expressed protein is shown in SEQ ID NO.2. This invention was cloned from the peony cultivar 'Zhengwu'. PsLBD12 The gene sequence was obtained and its expression was analyzed in peony. Subsequently, an overexpression vector was constructed and introduced into the target plant to verify its function. It was found that overexpression... PsLBD12 Compared with wild-type Arabidopsis seedlings, the Arabidopsis seedlings with this gene grew faster, exhibited earlier stem elongation, and showed earlier senescence of basal leaves in the later stages of growth. The taproot length was significantly shortened, the number of lateral roots was significantly increased, and the endogenous hormones IAA and ABA in the leaves were significantly increased. The average number of roots in detached leaves was significantly increased on MS medium containing IAA, and the average root length was significantly increased on MS medium containing IBA. It is evident that this gene will have wide applications in the cultivation and genetic improvement of peonies and other horticultural plants.

Disclosed are methods of enhancing plant growth, comprising treating seed at least one month prior to planting with an effective amount of a plant signal molecule, wherein upon harvesting the plant exhibits at least one of increased plant yield measured in terms of bushels / acre, increased root number, increased root length, increased root mass, increased root volume and increased leaf area, compared to plants harvested from untreated seed, or compared to plants harvested from seed treated with the signal molecule just prior to or within a week or less of planting.

The invention relates to the technical field of seed vigor detection, and discloses a rice single seed vigor index evaluation calculation method and system. According to the method, multi-dimensional information of the weight gain ratio representing substance absorption, the root length representing root development, the root number and the bud length representing germ growth is fused into one index, the physiological status and development potential of the seeds can be reflected more comprehensively, and a single seed vigor index calculation model is further constructed. Accurate quantification of vigor of a single seed is realized, and seed individuals with similar appearances but different internal vigor can be effectively distinguished. Elastic network regression is adopted in the process of constructing a single seed vital index calculation model, the defect that coefficients are unstable when traditional multiple linear regression faces strong correlation phenotypic data is effectively overcome, and the established model has higher reliability and generalization ability.

According to the method for improving the soybean seedling survival rate and the seedling device, the activity of soybean rhizobium can be enhanced through the formula, formation and growth of root nodules are promoted, the nitrogen content of plants is increased, absorption and activation of phosphorus are promoted, the breathing intensity and the activity of some enzymes are improved, and therefore growth and development of soybeans are promoted; compared with a control group, the yield is increased by 14% when the seeds are soaked in a mixed solution of ammonium molybdate and rhizobium japonicum for 6 hours; l methionine can promote soybean rooting and increase the root length, the root number and the root weight, and after soybean seeds are soaked with 10 mg / L methionine, the root length, the root number and the root weight are increased by 41.5%, 29.4% and 35.6% respectively compared with a control group; the root length, the root number and the root weight of the soybean seeds treated by the formula and the method are greatly improved, and the formula and the method are very beneficial to subsequent transplanting and growth. The seedling raising device can ensure that soybean seedlings are at a proper temperature, moisture is automatically regulated, and seedling raising is simple and practical.

The invention belongs to the technical field of plant tissue culture, and particularly relates to application of 3-MPA to improvement of plant rooting ability and / or promotion of plant root growth. The 3-MPA is applied in an exogenous mode, physiological data related to adventitious root regeneration are measured, and it is found that the 3-MPA can play a role in promoting plant rooting and root system growth. Results of the embodiment show that by using the reagent 3-MPA, the regeneration capacity of adventitious roots after M9T337 (apple dwarf rootstock) micro-cuttage can be improved, rooting can be achieved in the fastest 10 days, the rooting rate can reach 80% at most, the root length and the root number are also remarkably increased, and then the problem that M9T337 cuttage rooting is difficult in production is solved.

This invention discloses a peony PsPYL4 Genes and their application in regulating root development PsPYL4 The nucleotide sequence of the gene is shown in SEQ ID NO.1, and the amino acid sequence of its expressed protein is shown in SEQ ID NO.2. This invention was cloned from the peony cultivar 'Zhengwu'. PsPYL4 The gene sequence was obtained and its expression was analyzed in peony. Subsequently, an overexpression vector was constructed and introduced into the target plant to verify its function. It was found that overexpression... PsPYL4 Compared to wild-type Arabidopsis seedlings, the genetically modified Arabidopsis seedlings... PsPYL4 The overexpression lines showed faster growth, larger rosette leaves, significantly shorter taproot length, and significantly increased lateral root number. The levels of endogenous hormones IAA, ABA, ZR, and GAs in the leaves were increased. The average number of roots in the detached leaves was significantly increased on MS medium containing IAA, and the average root length was significantly increased on MS medium containing IBA. It is evident that this gene will have wide applications in the cultivation and genetic improvement of peonies and other horticultural plants.

The invention discloses a method for rapidly breeding seedlings by utilizing dandelion roots, and belongs to the technical field of vegetative propagation of plants. The method comprises the following steps: soaking a cleaned dandelion root section in a bud promoting agent for 1-3 hours, cleaning the soaked root section, putting the cleaned root section on wet vermiculite, culturing the root section to sprout under the conditions that the temperature is 20-30 DEG C and the humidity is 75-85%, soaking one end, which does not sprout, of the root section in a rooting agent for 1-2 hours when a budlet grows to 0.5 cm high, cleaning the soaked root section, putting the cleaned root section on the wet vermiculite, and culturing the root section to sprout at the temperature of 20-30 DEG C and the humidity of 75-85%. Adventitious roots are formed through culture at the temperature of 20-30 DEG C and the humidity of 75-85%, and dandelion seedlings are obtained when the height of the seedlings is larger than or equal to 5 cm and the number of the roots is larger than or equal to 2; according to the method, the seedling raising period is compressed to 30 days, the method is easy and convenient to operate and low in cost, the obtained seedlings are consistent in physiological age, stable in heredity and suitable for industrialized seedling raising and large-scale cultivation, and reliable technical support is provided for efficient development and utilization of dandelion resources.

This invention discloses a peony PsGH3.1 The application of genes in regulating root development PsGH3.1 The nucleotide sequence of the gene is shown in SEQ ID NO.1, and the amino acid sequence of its expressed protein is shown in SEQ ID NO.2. This invention was cloned from the peony cultivar 'Zhengwu'. PsGH3.1 The gene sequence was obtained and its expression was analyzed in peony. Subsequently, an overexpression vector was constructed and introduced into a model plant to verify its function. It was found that overexpression... PsGH3.1 Compared with wild-type Arabidopsis seedlings, the Arabidopsis seedlings with this gene exhibited stunted growth, wrinkled leaves, and shorter pods. Simultaneously, the taproot length was significantly shortened, while the number of lateral roots increased significantly. The levels of endogenous hormones IAA, ABA, and ZR in the leaves increased, while GAs showed no significant change. The detached leaves showed a significant increase in the average number of roots on MS medium containing IAA and a significant increase in the average root length on MS medium containing IBA. This indicates that this gene will have wide applications in the cultivation and genetic improvement of peonies and other horticultural plants.