8 results about "Glume" patented technology

The invention relates to the technical field of agricultural biology, in particular to an indoor identification method for rice spikelet blooming time, which comprises the following steps: placing a sample in a constant-temperature and constant-humidity environment of 32 DEG C, and observing the full-blooming time of each spike in real time, so that the flowering time of 30 percent of florets of each spike is finished, namely the spikelet blooming time. By controlling sampling environment conditions, standardizing operation procedures and repeatedly verifying, the rice spikelet blooming time can be quickly and accurately measured. According to the method, the influence of environmental fluctuation on glume opening time is effectively eliminated by standardizing environmental conditions and a sampling process, the accuracy and comparability of an identification result are remarkably improved, and the method is suitable for large-scale rice flowering characteristic screening.

The invention discloses an oat glume-cutting hybridization method capable of increasing the maturing rate and application thereof.According to the oat glume-cutting hybridization method, by conducting castration and glume-cutting treatment on a first main grain of an outermost spikelet of each round layer in a female parent, it can be guaranteed that ovules obtained after artificial hybridization pollination have sufficient nutrition for grain filling according to the oat fruiting nutrition distribution rule; female parents are bagged after castration and glume cutting, the bagging time is controlled to be 12-24 h, the water content of the fluff surface of the stigma can be reduced (it is prevented that pollen is separated by a water film when falling on the stigma), the contact area of the pollen and the stigma is increased, and the germination rate of pollen tubes is increased; pollination is carried out when the male parent anther naturally cracks, that is, pollination is carried out in the period with the maximum pollen viability, and the cross pollination probability can be increased. According to the method, the hybridization maturing rate can be remarkably increased, and the hybridization maturing rate can reach 70% or above when the white swallow No. 2 is used as the female parent and the white swallow No. 7 is used as the male parent for hybridization.

A new cultivar of Panicum plant named ‘Blue Lime’ that is characterized by its abundant panicles that are large, and airy, its inflorescences with unique glumes that retain their golden yellow-green color 1 to 2 weeks later in the season compared to what is typical for Panicum cultivars known to the inventor, and its upright, vase-shaped plant habit with no lodging or splaying stems.

The invention discloses a method for creating a rice sterile line with a white glumous flower character and application of the method, and belongs to the technical field of plant breeding, and the method comprises the following steps: introducing site-directed mutagenesis of a LOCOs03g40020 gene into a rice thermo-sensitive sterile line or a rice common genic male sterile plant by utilizing a gene editing technology, and carrying out site-directed mutagenesis on the LOCOs03g40020 gene to obtain the rice sterile line with the white glumous flower character. The new rice sterile line with the sterility and the white glumous flower marker is obtained, and in hybrid seed production, abnormal plants are visually recognized and removed through the phenotype of the white glumous flower. The absolute purity of the sterile line is realized and the safety of hybrid seed production is ensured through identification and sorting of double characteristics of seed fluorescence and glume flower color.

The present application relates to the technical field of plant genetic engineering, and specifically discloses a rice lateral small flower regulation gene LF2, a mutant gene thereof and application. The nucleotide sequence of the rice lateral small flower regulation gene LF2 is shown as SEQ ID No. 1, and the amino acid sequence of the encoded protein is shown as SEQ ID No. 2. The gene has an interaction relationship with OsNF-YA3, HAP3J, HAP5A, HAP5B, HAP5D, HAP5E, and regulates the development of rice glume by regulating the expression of G1. The mutant gene of the rice lateral small flower regulation gene LF2 is a single base substitution from T to A at the first base of the fourth intron of the LOC_Os07g44210 gene, which causes mRNA splicing disorder to form various new transcripts, and the transcript sequences are shown as SEQ ID Nos. 3-6. The rice lateral small flower regulation gene LF2 and the mutant gene thereof disclosed in the present application provide more evidence and basis for the "three-flower spikelet" hypothesis and "three-flower spikelet" breeding, and provide a new gene for breeding to increase the number of spike grains, which has very important significance for further improving the yield of rice.

The invention relates to the technical field of rice breeding, in particular to a breeding method of an ornamental rice variety for bonsai. The invention discloses a breeding method of ornamental rice varieties for bonsai. The breeding method comprises the following steps: S1, breeding a dwarf male parent variety PZ-R with green leaves and white stripes and long white miscanthus; s2, breeding female parent varieties PZ-S of clustered spikelet, purplish red spikelet and long red miscanthus; s3, matching and hybridizing to obtain F1-generation seeds F18, planting the F1-generation seeds F18, mixing and harvesting seeds F28 on F18 plants, and taking the seeds F28 as the potted ornamental rice seeds. According to the method, male parents and female parents with various characters are bred separately through a convergent cross breeding method, dwarf rice is formed through hybridization of the male parents and the female parents, the leaf color, glume flower cluster growth, glume flower color and awn character of the rice are combined to form various characters, the effects of leaf watching, flower watching and ear watching are good, and the dwarf rice is suitable for bonsai appreciation; the ornamental rice seeds can be obtained through first-generation hybridization, the batch production cost is low, and the production process is fast and convenient.

The invention relates to bacillus paralicheniformis HMF14, and the preservation number of the bacillus paralicheniformis HMF14 is CGMCC (China General Microbiological Culture Collection Center) No.30480. The bacillus paralicheniformis HMF14 has the advantages that the preservation number is CGMCC No.30480; the bacillus paralicheniformis HMF14 disclosed by the invention can resist saline and alkaline, can antagonize fusarium oxysporum, hematoptera graminearum var. Graminearum and xanthomonas brassicae specialized wheat at the same time, also has a poisoning effect on pratylenchus agilis and paenchus calcarinus, and can be used for effectively preventing and treating wheat take-all and wheat black glume disease.

The present invention relates to the field of agricultural biotechnology, and specifically provides an indoor identification method for the glume opening time of rice. The method involves placing the samples in an environment with a constant temperature of 32°C and constant humidity, and observing the full-bloom time of each panicle in real time. The glume opening time is defined as the time when 30% of the florets on a single panicle complete anthesis. By controlling the sampling environmental conditions, standardizing the operation process, and conducting multiple replicates for verification, rapid and accurate determination of the glume opening time of rice can be achieved. Through standardizing the environmental conditions and sampling process, the present invention effectively eliminates the influence of environmental fluctuations on the glume opening time, significantly improves the accuracy and comparability of the identification results, and is applicable to large-scale screening of rice flowering characteristics.