36results about How to "Simplified selection method" patented technology

The invention discloses a D2D link selection method for integrating social information in a multi-cell scene, which includes the following steps: Step 1: degenerate the multi-cell D2D communication scene into a D2D communication scene in which two cells coexist for research. The base station classifies users according to the location distribution of users in the network, so that users can distinguish interference; the second step: use non-transferable utility to form a game to perform link selection for D2D pairs in the area where two users are in the same cell ; Step 3: Perform link selection for the inter-area D2D pair of two users in two cells, and consider the balance of link resources used by the inter-area D2D pair for the two cells during the link selection process. The link selection method provided by the present invention is simple to implement, has low signaling overhead, and ensures the balance of link resource usage of two cells by cross-area D2D.

The invention discloses molecular markers linked with an Aphelenchoides besseyi Christie resistant QTL (quantitative trait locus). The essence of the molecular markers is that according to the linkage and segregation rules, the population of the hybrid generation F2 of the Aphelenchoides besseyi Christie resistant variety Tetep and Huaidao 5 is taken as the mapping population, and the SSR (simple sequence repeat) markers RM18632 and RMi63, linked with the LRGPP (loss rate of total grains per panicle) related Aphelenchoides besseyi Christie resistant QTL, on the chromosome 5 are obtained through analysis of linkage between the identification results of Aphelenchoides besseyi Christie resistance and the SSR marker data. Whether a plant has Aphelenchoides besseyi Christie resistance can be judged by detecting the SSR marker banding pattern of the single rice plant of the hybrid combination generation of Tetep and derived varieties (lines) thereof and the Aphelenchoides besseyi Christie susceptible variety. After being applied to assistant selection breeding of the Tetep and derived varieties (lines) thereof / susceptible variety-Aphelenchoides besseyi Christie resistant variety, the SSR markers can overcome the defects of poor stability and repeatability of Aphelenchoides besseyi Christie resistance identification, time and labor waste and the like in conventional breeding and can simplify the selection method and improve the breeding efficiency so as to accelerate the breeding process of the Aphelenchoides besseyi Christie resistant variety.

The invention discloses a molecular marker co-separated with a wheat low polyphenol oxidase activity gene QPpo-5D, which belongs to the category of agricultural biotechnology. A recombinant inbred line RIL population was constructed by crossing a wheat germplasm with a very low polyphenol oxidase activity and a wheat germplasm with high PPO activity, and the resistance gene was located in the staining 5DL5-0.76-1.00 segment by wheat molecular marker technology middle. In order to discover the new molecular marker of the low PPO activity gene QPpo-5D, a KASP marker AX-110939270 was developed using the SNP marker conversion method. As a new molecular marker of the low PPO activity gene QPpo-5D, this marker can be better applied to the assisted selection of wheat varieties with low PPO activity, thereby overcoming the shortcomings of conventional breeding, simplifying the selection method and improving the breeding efficiency, thereby accelerating the high white The breeding process of high-quality, high-quality varieties.

The invention belongs to the field of genetic breeding and particularly relates to a method for breeding high-yield winter wheat by stalk characteristic. The method comprises the steps: carrying out hybridizing by selecting the high-yield winter wheat as parent plants so as to obtain a hybrid F1; selecting single plants from a hybrid F2 to a hybrid F5 according to the ratio of spike length to spike-below internode length to backwards-counting second internode length, spike-below internode outside diameter and backwards-counting fourth internode outside diameter; selecting single plants from a hybrid F6 to a hybrid F7 according to the standards above and spike-below internode dry weight; and selecting single plants from a hybrid F8 according to the standards above and grain yield. The method is applicable to Huanghuai wheat areas and is simple and accurate.