Clonal selection Thephenotypic valueof a plant or a clone is due to its genotype (G), the environment (E) and the genotype x environment interaction (GE). Of these, only the G effects are heritable and stable.
People also ask
How are clones selected for breeding?
The selection is based on visual observation and on the breeder鈥檚 judgment of the value of clones. Fifty to one hundred clones are selected on the basis of clonal characteristics. Replicated preliminary yield trial is conducted.
What is selective breeding of plants about?
Basically, if someone were to alter your genome, they could eliminate all your undesirable traits and keep only the beneficial ones. And that鈥檚 exactly what selective breeding of plants is about. Only, this practice existed for thousands of years, way before anyone knew about genetics. How is that possible, you may ask?
Should we select for quantitative or polygenic characters in plant breeding?
Therefore, a selection for quantitative characters based on single plant observation may not hold good. A selection for polygenic characters like yield on the basis of unreplicated clonal plots would also often be misleading and unreliable. The value of clone can be reliably estimated only through replicated yield trials.
What determines the phenotypic value of a plant or clone?
The phenotypic value of a plant or a clone is due to its genotype (G), the environment (E) and the genotype x environment interaction (GE). Of these, only the G effects are heritable and stable.