A kind of ramie hybridization method

Abstract

The invention provides a ramie hybridization method and in particular relates to a water culture ramie hybridization method, aiming at improving the hybridization setting percentage of ramies and the purity of hybridized seeds. The method mainly comprises the following steps: selecting and matching male and female parents, carrying out young shoot water culture, regulating and controlling a photophase, carrying out inflorescence treatment, carrying out isolated hybridization and harvesting. By adopting the method provided by the invention, high-density cuttage of hybridization parents can be realized; the method is simple to operate, the space is saved and large-scale hybridization breeding can be realized; a whole process is carried out under controllable conditions so that the hybridization breeding of the ramies is not strictly limited by seasons and the breeding time of the ramies is shortened; external pollen is strictly isolated and the purity of the hybridized seeds is improved; an artificial light source is used for supplementing light so that the hybridization setting percentage and the plumpness of the hybridized seeds are improved.

Description

technical field [0001] The invention relates to the field of agricultural breeding, in particular to a hydroponic ramie hybridization method. Background technique [0002] Ramie is a traditional economic crop in my country. Hybrid breeding is an effective way to improve ramie varieties. An excellent ramie hybridization method is of great significance for reducing the intensity of breeding work, improving work efficiency, and speeding up the process of breeding new varieties. [0003] Ramie is a monoecious plant with different flowers and cross-pollination, which is mainly pollinated by wind. On the same ramie plant, the female flowers are born on the tip of the stem, and the male flowers are born on the lower nodes of the female flowers. Ramie male flowers flower earlier than female flowers. Therefore, the current traditional ramie hybridization method needs to bag and isolate the female flowers on the female parent before the male male flower pollen matures. After the mal...

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Problems solved by technology

At the same time, this method often plants multiple male parents and multiple female parents in the same isolation area (multi-father hybridization), and it is difficult to ensure a clear parental source.

In addition, this method of hybridization uses a lot of land, and the number of parents that can be planted for hybridization per unit area of ​​land is limited. If large-scale hybrid breeding needs to prepare a large area of ​​land, the resource utilization rate is not high. This method is not conducive to large-scale breeding. cross breeding

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