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一、概述辐射诱变育种已研究了多年。它的原理是利用电磁波辐射对生物机体的作用,使染色体和遗传分子的结构发生变异或改变,从而导致性状和特性的变异,这样就可以专门选择培
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一、概述辐射诱变育种已研究了多年。它的原理是利用电磁波辐射对生物机体的作用,使染色体和遗传分子的结构发生变异或改变,从而导致性状和特性的变异,这样就可以专门选择培育有利的变异,如早熟、高产、优质、抗病、适应性强等。已培育出的新变异特性,通过细胞分裂再使其稳定地遗传给后代,就能育成新的良种。在电磁波辐射中,γ射线具有很高的诱变率。但是,γ光子的能量太高,对生物体能造成许多有害的损伤和引起一些杂乱的反
I. Overview Radiation Mutagenesis Breeding has been studied for many years. Its principle is the use of electromagnetic radiation on the role of biological organisms, the structure of chromosomes and genetic elements mutation or change, resulting in variation of traits and characteristics, so you can specifically choose to cultivate favorable variations, such as precocious, high yield, high quality, Disease resistance, adaptability and so on. New variability has been developed that, through cell division and then stably passed on to offspring, can breed new breeds. In electromagnetic radiation, gamma rays have a high mutagenic rate. However, the energy of gamma photons is too high, causing many harmful damage to the organism and causing some clutter
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