AGRONOMIC QUALITIES OF NEW SOFT FALL – SEEDED WHEAT CULTIVARS OF DIFFERENT ECOLOGICAL AND GEOGRAPHICAL ORIGIN IN TERMS OF KIROVOHRAD CULTIVAR STATION

The objective of the research was to choose cultivars, that are best suitable for agroecological conditions of the micro zone, where the research was conducted. The following methods were used in the research: field, statistical and analytical. Results. It was found out that new cultivars of unequal ecological and geographical origin are diverse environmental biotypes, that differently response to the change of ambient conditions. Yielding capacity as the main composite index of adaptation of genotypes to the growth environment, varied depending on the genesis of the cultivar. The highest yield capacity was demonstrated by cultivars of the following producers: W – Dieckmann GmbH, Deutsche Saatveredelung AG, Linz and Saatbau LLC, OOO Sady Ukrainy. The average yield capacity of cultivars of these producers accounts for 8.02, 7.69, 7.37 and 6,98 ton/ha respectively. The cultivar SN Combin is well adapted to the conditions of the micro zone. The yield capacity of this cultivar within the period of 3 years accounts for 8,17 ton/ha, exceeding the standard yield capacity of the cultivar Podolyanka, which is estimated as 1.35 ton/ha. The cultivar is photoperiodically insensitive, and it grows well in conditions of short day in late autumn and early spring. The cultivar Estivus also has a high yield capacity. Its average yield capacity accounts for 8.02 ton/ha. However, this cultivar has low freezing tolerance, so it is unappropriate to grow Estivus in agroecological conditions of the cultivar station. High yield capacity is also typical for the next cultivars: Mudrist odeska, Traditsiya odeska, Fabius, Staleva ta Lil. It was also found that cultivars Karmelyuk, Poltavchanka, Magistral and Garantiya odeska have lower adaptability to soil and climate conditions of the micro zone and reduced yield capacity in comparison with a standard (21.7, 18.8, 19.8 and 14.2 % respectively). The early crop cultivars are Magistral, Poltavchanka, Montrey and Boditsek, and the middle and middle – late crop cultivars are Estivus, Fabius, Zolotonoshka, Vodogray bilotserkivskiy, Traditsiya odeska. Plant high varied differently. Most of the cultivars are short – stalked or semidwarf. Height varied from 79-83 centimeters (Patras, Estivus, Bankir, Nasnaga) to 101-107 centimeters (Malanka, Pokrova, Orlean, Askaniyska). In favorable conditions the latters are prone to lodging. A significant difference of freezing tolerance was found out. The highest freezing tolerance have the following cul