The ISTOK tomato variety is an early-maturing, determinate variety intended for cultivation in greenhouses and under plastic covers. The plant reaches a height of about 140 cm and forms up to six flower clusters with high fruit set, each bearing an average of five tomatoes. The fruits are round, smooth, red, weighing from 90 to 110 grams, dense and meaty, with excellent flavor and aroma. This variety is distinguished by its early maturity and high yield, ensuring a stable harvest of no less than 8 kg per square meter. ISTOK is highly resistant to various diseases, including late blight, root rots, and viral infections, and is also resistant to cracking and blossom end rot. The variety is tolerant of low light conditions, making it suitable for cultivation in diverse climatic conditions. Due to these qualities, ISTOK tomatoes are suitable for both fresh consumption and all forms of canning and processing, expanding their culinary applications. ISTOK tomato seeds produce tasty and aromatic fruits that adapt well to open field and greenhouse conditions. The high yield and reliability of this variety make it a popular choice among gardeners and growers seeking quality harvests. ISTOK tomatoes are ideal for making salads, various dishes, and home canning, combining versatility and resistance to adverse factors.