As a result of the conducted studies, it was found that when green pear cuttings were taken from uterine bushes in the first decade of June (June 07) and when the slices were treated with the growth stimulant β-indolyl-3-butyric acid (IBA) (50 mg/l), the forms PG 12 (k), PG 17-16, PG 2 had the greatest degree of their rooting. The clonal rootstocks of pears PG 12 (k), PG 17-16, PG 2 had the largest number of rooted cuttings. Without treatment with a plant growth regulator, the best results of rooting and the number of rooted cuttings were characterized by the forms PG 12 (k), PG 17-16, PG 2. When treated with the plant this growth stimulator (50 mg/l), green cuttings cut in the second decade of June (June 20) and subsequent rooting allowed us to establish that the best indicators of rooting and rooted cuttings were PG 12 (k), PG 17-16, PG 2. Without the use of a plant growth stimulator, the forms PG 12 (k), PG 17-16, PG 2 were characterized by the highest percentage of rooting and rooted pear cuttings. When treated with the plant growth stimulator, the forms PG 12 (k), PG 17-16, PG 12, PG 2 had the greatest length of increments and the greatest length of the root system. Without the use of a plant growth stimulator, the forms PG 12 (k), PG 17-16, PG 12, PG 2 had the best result of the length of the increments and the length of the root system. After taking green pear cuttings from uterine bushes in the second decade of June (June 20) and when treating the slices with the plant growth stimulant β-indolyl-3-butyric acid (IBA) (50 mg/l) and without treatment, the best forms were PG 12 (k), PG 17-16, PG 12, PG 2. PG 12 (k), PG 17-16, PG 12, PG 2 were characterized by the greatest length of increments, the length of the root system during treatment and without treatment with a plant growth stimulator.

Zatsepina Ilona V.

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