The evaluation of the potato collection samples according to some physiological indicators and the choosing of the primary donors for the selection

In the article, the results of the evaluation of 20 potato collection samples of different geographical origins are reflected according to some physiological indicators - the leaf surface area, photosynthetic potential, the specific surface density of the leaves, the amount of the chlorophyll in the leaves, total dry and wet biomass. It was determined that the collection samples are divided into fast-growing (89-91 days), medium-fast-growing (92-94 days) and medium-growing (95-97 days) groups according to their ripeness, and into high-yielding (466.0-619.7 cwt/ha), medium-yielding (273.3-424.0 cwt/ha) and low-yielding (224.3-252.0 cwt/ha) sort samples according to their productivity. It was shown that Panomera (32.1 thousand m 2 /ha, 2407 thousand m 2. day/ha and in 332.0 mg/100g wet mass, respectively), Elfe (33.9; 2776 and 280.5), Telman (35.8; 2969 and 250.0), Bellarosa (43.2; 3453 and 354.1), Farida (50.7; 4003 and 357.9) sort samples differ according to the leaf surface area, the photosynthetic potential of the plant, and the amount of the chlorophyll in the leaves, and Sifra (5.96 mg/cm 2 ), Fabula (6.09 mg/cm 2 ), Red-scarlet (6.87 mg/cm 2 ), Julinka (8.12 mg/cm 2 ) and Viviana (8.65 mg/cm 2 ) sort samples differ according to the specific surface density of the leaves. It is recommended that these samples be used as primary donors for future selection which will be conducted according to the productivity and adaptability.