Practical Aspects Of Genetic Control Over Quantitative Traits When Selecting Parental Pairs In Potato Selection

Abstract

The Effectiveness Of Selection Largely Depends On How Successfully Parental Forms Are Selected For Hybridization. Given The Nature Of The Inheritance Of The Most Important Traits, This Will Allow The Creation Of Varieties With A Unique Combination Of Genes That Form A Unique Set Of Economic And Biological Indicators And Traits. Given The Complex Polygenic Nature Of The Inheritance Of Most Selected Traits In Potatoes, Selection By Phenotype Alone Is Not Always Effective, So Selection Of Pairs Is Carried Out Both By Genotype And Phenotype. Assessment Of The Combining Ability Of 11,593 Genotypes From 180 Populations Allowed Us To Determine The Selective Value Of The Initial Forms. Potato Hybrids Were Assessed For Economically Useful Traits With Various Cross Combinations Over 1999-2019, And Correlation Dependence Between The Traits Under Study Was Analyzed. Best Parental Forms Were Identified, Which Could Be Recommended For Selection. As A Result Of The Research, Hybrid Combinations Were Identified, From Which Potato Varieties Were Created And Included In The Register Of Selection Achievements. The Results Show That The Value Of Heterosis Cannot Be A Universal Criterion In The Selection Of Pairs For Hybridization And Is More Dependent On The Genetic Base Of The Initial Forms Of Potato.