Propagation method for radish parent material

Abstract

The invention discloses a propagation method for a radish parent material. The method comprises the steps of radish stock tree planting, wherein concentrated planting is performed on each selfing line stock tree, and distinguishing is performed; 2, net house building, wherein bamboo poles are selected as stand columns and transverse rods of a net house, strips of cloth are adopted for binding and fixing, according to the number of radish selfing material trees, the size of the net house is determined, the net house is covered with a net cover, the lower portion is closed by soil, and osmia is prevented from flying out; 3, osmia release, wherein before osmia is released, a honeycomb and a mud disc need to be prepared inside each net house, and the honeycomb is suspended at the southeast corner of the upper portion of each net house. The released osmia can be released according to the ratio of radish plants to osmia being 1:5; 4, flowering phase plant and osmia management, wherein weak and diseased plants and special-shaped plants are removed from radish plants surviving after planting, before a full-bloom stage, plants are bound one time, the plants are surrounded by fish nets at the periphery, the distance between the fish nets and the external net houses is controlled to be about 40 cm, and the phenomenon that branches stretch to the edges of the net houses, and external pollen is received, so that hybrids are caused; 5, osmia recycling and storing; 6, seed harvesting, wherein the radish flowering phase is 30-40 d generally, after pollination is completed, non-podding flower ends are sheared off on sunny days in time, after the net cover and the bamboo poles are removed, pesticide is sprayed to radish plants, and insect diseases are prevented. Harvesting is performed when silique is yellowed, and after airing is performed for about 3 d, threshing is performed.

Description

technical field [0001] The invention relates to a rapid propagation method for enlarged propagation of crop breeding materials and seed production, in particular to a method for propagation of radish parent materials. Background technique [0002] Radish (Raphanus sativus L.) belongs to cruciferous entomophilous vegetable crops, and natural cross-pollination can set seeds normally. In the process of radish breeding, after the excellent traits of radish inbred lines tend to be homozygous and stable, high-quality combinations should be configured. After selecting high-quality combinations, it is necessary to use appropriate methods to produce a large number of hybrid seeds to meet the needs of later field experiments. . Proper breeding of high-quality combinations in this way has become an important technical link in the radish breeding process from the stage of scientific research and breeding to the stage of achievement promotion, and it is also a key problem that breeders ...

AI Technical Summary

Problems solved by technology

The geographical separation of radish materials in the open field should be more than 2,000 meters, which is obviously not suitable for a wide variety of breeding materials. The traditional bee net room pollination is due to the large amount of bee, and the single-layer net room is easy to cause the edge flowers to be pollinated by other insects. Occur hybrid (Ran Maolin, a kind of rapid propagation method of radish breeding technology, CN 103270944 B), therefore, a kind of efficient, the propagation method of radish breeding with low hybridization rate remains to be proposed

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