The Isety white apple tree is a medium-sized tree with a round crown of medium density. The bark is dark gray or brown, the shoots are thick, straight, and brownish with a slight pubescence. The leaves are large, widely oval in shape, dark green in color, and have a smooth surface. The flowers are small, gathered in umbrella-shaped inflorescences, white or pink in color, possess a strong aroma that attracts bees, promoting pollination.
The fruits of the Isety white apple tree have a regular round-conical shape and a light yellow color. The average fruit weight is about 150 grams, reaching a maximum of 268 grams. The flesh is white, tender, and juicy, with a sour-sweet taste. The variety is early-fruiting, beginning to bear fruit in the fifth year after planting. The ripening period comes in late summer, usually in late August. The yield is medium, reaching up to 80 kg per tree.
The variety is distinguished by high winter hardiness and good resistance to scab, making it a reliable choice for growing in various climatic conditions. Among the advantages of the Isety white apple tree are large fruit size, good yield, and field resistance to diseases. Among the disadvantages is the unevenness of fruits in size. Thanks to their taste qualities and useful properties, the fruits of this variety are widely used fresh and in cooking.