STATE AND PRODUCTIVITY OF PARSNIP AT APPLICATION OF GROWTH REGULATORS
The research has been conducted on parsnip reaction to treatment of its seeds by various growth regulators. It has been discovered that growth regulators application in parsnip seeds treatment conditions change in biochemical complex of plants which in most cases leads to increase in biomass, agrocoenosis productivity, as well as root crop quality improvement. As can be seen from a complex of biochemical parameters, growth regulators application has caused increase in sugars and dry matters in parsnip roots and has also lead to accumulation of nitrates, though within MAC limits. Best results have been achieved at albit and gumat 7+ application in parsnip seeds preseeding treatment. Such growth regulators as hydrogen peroxide, zircon and epin extra, used analogically, have been less efficient. Nevertheless, all above mentioned growth regulators (by a complex of parameters) demonstrate high efficiency in parsnip seeds preseeding treatment.