Mutation breeding

About: Mutation breeding is a research topic. Over the lifetime, 531 publications have been published within this topic receiving 6730 citations. The topic is also known as: variation breeding.

Study on technique of mutation breeding by electron beam in chrysanthemum

Abstract: Technique of mutation breeding in chrysanthemum was studied by means of irradiating the young plant from tissue culture with electron beam The results showed that the suitable doses are 30～50Gy for the plant, which suit inducing mutation for the characters of color, petal shape and florescence In this range, the posterity is of higher mutation rate and wider mutation range, and mutation characters is stable The color mutates from pink to purplish red or orange, the petal shape from tubular to spoon or flat, the florescence is earlier 60 days than the check But the mutation rate varies greatly with different varieties, with that of pink variety higher, yellow and white varieties lower The results proved that the technique of irradiating the young plant from tissue culture is an effective method for mutation breeding in chrysanthemum

Non-vacuum ion implantation mutation breeding method of germinating plant seeds

Abstract: The invention relates to a non-vacuum ion implantation mutation breeding method of germinating plant seeds, which changes the original method which needs dried plant seeds in ion implantation plant seed mutagenesis and carries out ion implantation in a vacuum chamber target tray As the life activity of the dried plant seeds is low, and the dried plant seeds are in a dormant state, the dried seeds have low mutagenesis efficiency after ion implantation The non-vacuum ion implantation mutation breeding method of the germinating plant seeds adopts ion beam stream led out by a high-energy ion implantation machine to bombard the germinating plant seeds in the atmospheric environment, so as to lead water and organic molecules inside the germinating seeds to generate free radical, genic mutation within the seeds and DNA molecular chain breaking recombination, wherein special ion implantation seeds selected by the non-vacuum ion implantation method take part in the seed DNA molecular chain breaking recombination The method can be used for culturing good strains of seeds with special mutation

Chemical mutation breeding method for bougainvillea

Abstract: The invention discloses a chemical mutation breeding method for bougainvillea, and relates to the field of the vegetative propagation and chemical mutation breeding of xylophyta and vines The method treats cottage pieces of bougainvillea with sodium azide (NaN3), adopts continuous cottage propagation to create a time and a space which are good for growth of leaf color mutants, and obtains new lines with stable heredity and ornamental value through generation selection, thereby achieving the purpose of chemical mutation breeding By adopting the technical scheme in the invention, large quantities of female parent materials can be treated in one step; the base number of variants is relatively increases greatly; the mutation frequency is increased; the treatment cost is relatively low; and the breeding period can be shorten effectively By utilizing the continuous cottage propagation manner, the growth of leaf color mutants is ensured to be competitive, which is helpful for overcoming the chimera formation, thereby obtaining stable and uniform variants The chemical mutation breeding method can obtain high-frequency mutation and a wide spectrum of variation, and is helpful for the variety improvement of bougainvillea

Release of a New Lodging-resistant Mutant Cultivar Produced by Gamma-rays in Glutinous Rice.

Abstract: To obtain short culm mutants with lodging resistance, while retaining the other desirable traits, such as an excellent quality of the original variety, dry seeds of a glutinous rice cultivar Mezuru were exposed to gamma-rays. In M3, thirty plants were selected from 4 020 plants, based on the short culm length. From the results of the subsequent yield and adaptability tests, a promising mutant line was called by the name of Sakata-Mezuru as a new cultivar in 1996. This mutant variety was mainly characterized by shortening of each internode, especially the lowest internode, and at harvest it was more adaptable to mechanical work due to the lodging resistance than its parent. It was demonstrated that the grain quality of the mutant equals to or slightly surpasses that of the parent. Sakata-Mezuru has been registered in February of 2001 and officially released.