Abstract:
The preparations containing algae from Ascophyllum Nodosum class are used to increase the degree of flower setting, stress tolerance and productivity of apple-tree plantation. Studies were conducted on the variety of apple trees Gala Buckeye in the period 2021 with bio regulator Goemar BM 86 at a dose of 2.0 and 3.0 l/ha. The highest results for maintenance of physiological balance between growth, fruiting and regular yields in apple trees were obtained when using a dose of 3.0 l/ha, applied three times by leaf spraying. The first treatment should be carried out at the beginning of vegetation, the second - when the buds swell, and the third - after flowering.