Genetic Aspects of Photosynthesis of Aromatic Tobacco Varieties and the Optimization Ways of Selection: Coefficient of Photosynthetic Productivity

Abstract

The results of genetic analysis on the coefficient of photosynthetic productivity (CPP) in seven varieties of Samsun tobacco are summed up in the fourth article of the series. It has been confirmed that in the hybrids of F1 an intermediate inheritance of the trait prevails, which is mainly manifested by the impact of recessive additive genes leading to incompatibility in the indices of ĝi and the mentioned trait. The significance of CPP as a valuable photosynthetic index in the creation of hybrid combinations with an improved photosynthetic apparatus has been justified. In the result of the study, valuable varieties and perspective hybrids have been identified and specific recommendations on optimizing all breeding stages have been introduced.