Abstract

A technology for growing healthy potatoes at all stages of reproduction in the elite production system was developed and improved at Sakhalin Research Institute of Agriculture, Russia. The introduction of new technology in seed farms of the Sakhalin region allowed to transfer the production of elite potato seeds to a virus-free basis. At the same time, the total production of highly reproductive seeds increased by 14%, the average potato yield in agricultural enterprises of the region increased by 20-22%. The technology was improved at all stages of obtaining original potato seeds based on the use of phyto-regulators (Azolen, Elena, Extrasol, Epin-Extra, Zircon). The use of biological products and growth regulators contributed to the production of highly productive virus-free seed material. Under production conditions, the use of phyto-regulators allowed to obtain a conditionally net income of 496-603.7 thousand rubles/ha. The perspective fungicides of the combined action of Infinito and Consento for protecting potatoes from late blight were studied and isolated. Their use made it possible to protect plants from fungal infection up to 90%, to increase productivity by 21-23% and the marketability of tubers by 2.2-3.8%. The additional income amounted to 288-300 thousand rubles/ha.