IMPACT OF GENOTYPE ENVIRONMENT INTERACTION 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 essentially 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 presence makes a correct decomposition by means of usual paratypic dispersion methods for its components impossible due to mathematical character. That's why the use and estimation of the paratypic-variance in general as the genotype - environment variance for quantitative traits may prove to be more real for a genotype and population characteristic at the present moment.