Comparison of Potato Chlorophyll Fluorescences Variables and Analysis of Clusterization

摘要

The article presents the results of comparative analysis of chlorophyll fluorescence parameters of four potato hybrids: "SantexGranat", "27004", "28034-7", "9635-30" and "Sarma", a widespread variety in Irkutsk region. The values of chlorophyll fluorescence parameters have been received by the method of pulse - amplitude modulation. According to five parameters characterizing the potential of photosynthesis and the strong mechanism of photosystem protection against intensive lighting, the most preferable hybrid has been the hybrid "9635-30". It can be used for further potato selection. Based on clustering we have distinguished three groups from four tested hybrids and one variety. The first group includes "Sarma" and "28034-7", the second group includes "SantexGranat" and "27004", and the third group includes "9635-30". According to the clusters properties and experimental data the second group was the least perspective, firstly for the resistance to heat. Therefore, we have offered to continue researching samples "9635-30" and "27004" for receiving new variety.