IMPACT OF GENOTYPE ENVIRONMENT INTERACTIO N ON THE PARATYPICAL VARIABILITY OF QUANTITATIVE TRAITS AND ITS ESTIMATION

Cenosis density, seed mass, plant root secretions having,great impact (before the change of ranks) on paratypic variability change essential ly genotypic polymorphism of the quantitative traits homeostasis. The quantitative trait paratypic variance in cenosis is a response of the complex interactions of genotypic and environmental factors, their pre sence makes a correct decomposition by means of usual paratypic disper sion methods for its components impossible due to mathematical charact er. That's why the use and estimation of the paratypic-variance in gen eral as the genotype - environment variance for quantitative traits ma y prove to be more real for a genotype and population characteristic a t the present moment.