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烟草一代杂种增产效果一般都在10%以上。但目前我国还没有一处能在大面积生产上应用。主要原因是种子生产非常困难。烟草花器大,杂交方便,是有利的一面;但更重要的是,人们对其受精时要求的适宜条件不夠了解,供给的较差,致使难以获得大量杂交种子。李森科指出,受精本质实质上就是配偶子相互同化的过程。当两个种性的生活物质微粒结合在同一个活体中发生新陈代谢生理过程时,参与这过程的条件,将会不同程度地影响该过程“反应式”的平衡,将会改变該过程反应后的生理条件(胚胎发育的生理条件),将会影响受精过程的完全性和果实一些数量性状的发育。根据这一論点,我所1961—1962年用不同方法使烟草受精条件发生改变,进而探索不同受精条件对当代结实性(成果率和蒴果内种子数)与蒴果一些数量性状(蒴果风干重和种子千粒重)的影响。为进一步改进杂交技术提供依据。
Tobacco hybrids generally yield more than 10%. However, at present, there is not a place in our country that can be applied in a large area of production. The main reason is that seed production is very difficult. Tobacco plants are large and convenient for hybridization, which is on the positive side; but more importantly, people do not know enough about what they need when they fertilize and are poorly supplied, making it hard to get a lot of hybrid seeds. Lysenko pointed out that the nature of fertilization is essentially the process of spouses mutual assimilation. When the two kinds of living material particles are combined to produce metabolic physiological processes in the same living body, the conditions involved in the process will affect the “reactive” balance of the process to varying degrees and will change the process of reaction Physiological conditions (physiological conditions of embryonic development) will affect the completeness of the fertilization process and the development of some quantitative traits of the fruit. Based on this argument, we used different methods to change tobacco fertilization conditions from 1961 to 1962, and then explored the effects of different fertilization conditions on the contemporary firmness (fruit yield and the number of seeds in the capsule) and some quantitative characteristics of the capsule (air dried weight of the capsule and seeds Thousand kernel weight) influence. Provide the basis for further improvement of hybridization technology.