How to establish the breeding system of fine varieties of ginger.

in order to ensure the quality of fine variety breeding of ginger, it is necessary to establish a fine variety breeding system of ginger, actively do a good job in the breeding of disease-free ginger varieties and the preservation and purification of excellent varieties. According to the characteristics of ginger, it is advisable to establish a three-level breeding system for virus-free ginger, that is, the breeding of virus-free ginger varieties is divided into original seed, original seed and production seed; Generally, a two-level breeding system should be established for improved varieties, which are divided into breeding seeds and production seeds, and different breeding measures should be taken respectively to ensure the quality of original seeds and production seeds.

The method of two-stage breeding of common ginger varieties is as follows: in the first year, the second generation of original varieties or the field plants of the previous year were selected to build a first-stage Taneda, from which the superior plants were selected for the first-stage Taneda in the next year, and the rest were removed from impurities for the second-stage Taneda in the next year, and the second-stage Taneda was selected for the field, so as to continuously produce high-quality ginger for variety rejuvenation.

The technical system of three-stage breeding of virus-free ginger varieties is complicated, including the production methods, procedures, conditions, testing and management from virus-free test-tube seedlings to virus-free seeds at all levels (see related issues below for specific methods).