Method for changing patterns and colors of maidenhair

Abstract

The invention relates to a method for changing patterns and colors of maidenhair. The breeding method of a new species of the maidenhair mainly contains natural variation, hybrid breeding, space breeding and induced mutation breeding by ion radiation, but the frequency of the natural variation is low, the hybrid breeding process is complicated, and the space breeding cost is high. Dry seeds of the maidenhair are vertically plugged onto flower mud of a culture dish, a germ faces upwards, and the germ part is exposed; the well-prepared sample is placed into an ion radiation vacuum system to face the radiation source; the vacuum system is vacuumized to 10 to 4Pa; the ion radiation source is started, and the ion radiation technical parameters are adjusted; and the ion radiation is carried out, the ion radiation source is closed after the ion radiation is completed, the vacuum system is inflated, and the maidenhair dry seeds are taken out to be bred. The method is low in cost, wide in variation frequency spectrum, high in variation rate, convenient to operate and wide in application prospect.

Description

technical field [0001] The invention relates to the technical field of flower breeding, in particular to a method for changing the flower type and color of peacock grass. Background technique [0002] Peacock grass is produced in Mexico and is the national flower of the United Arab Emirates. It is an annual herb of the genus Marigold in the family Asteraceae. Herbs used as medicine have the effects of dispelling heat and dispelling diseases, nourishing blood and stimulating menstruation, and can treat various diseases, repel mosquitoes and kill harmful bacteria and insects in the soil. It has gradually become one of the main flowers in urban greening, but its flower shape and With fewer flower colors, it is necessary to cultivate more new varieties of peacock grass. [0003] At present, there are many methods of breeding new varieties of flowers, mainly including natural variation, hybrid breeding, space breeding, and ion radiation mutation breeding. However, the frequenc...

AI Technical Summary

Problems solved by technology

However, the frequency of natural variation is low, only one in tens of thousands, or even one in hundreds of thousands; hybrid breeding can bring together two or more excellent traits, but this method will not produce new genes, and the hybrid offspring will Separation of traits occurs, and the breeding process is slow and complicated; space breeding uses the mutagenic effect of the special space environment (high vacuum, cosmic high-energy ion radiation, cosmic magnetic field, and high cleanliness) that cannot be simulated on the ground to mutate the seeds and then reproduce them. Returning to the ground to select new seeds, new materials, and cultivate new varieties of new crop breeding technology has the characteristics of many beneficial variations, large changes, fast stability, high yield, high quality, early maturity, and strong disease resistance, but the cost is high. Inconvenient to operate; while the ion radiation mutation breeding method also has the advantages of space breeding, including vacuum environment, ion interaction, etc. The difference is that there is no weight loss, but the method is low in cost, easy to operate, and easy to be practical