Peppermint propagation technology development for organic culture

The purpose of the study is to develop methods for increasing the rooting rate and quality of planting material using amino acids and amino acid preparations for organic mint culture. The objects of the study are the varieties of peppermint Mitchum and Multimenta. The experience was laid at the Educational-Scientific-Production Center “Vegetable Experimental Station named after V.I. Edelstein". The material was taken from mother plants grown in open ground. Cuttings by rhizomatous grafts were carried out on April 20 in cassettes 5 × 5 cm in size. Cuttings 5-7 cm in size were cut from plants of the 3rd year of vegetation of Peppermint (Mentha × piperita L.), cv. Mitchamskaya. The experiment included the following options: Control, IAA 25 mg/l, L-alanine 10 mg/l, DL-alanine 10 mg/l. The cuttings were soaked in solutions of preparations for 2 h, the control was soaked in water. After soaking, the cuttings were washed and planted in cassettes. Repetition of each option for 4 cassettes with 6 cells. The tests were carried out after 30 days. The second experiment was planted on July 2 with green cuttings of Peppermint (Mentha × piperita L.) varieties Mitchamskaya and Multimenta. IAA (25 mg/l) and a complex amino acid preparation Aminozol (Germany) at concentrations of 1 and 2 ml/l were chosen for the treatment of cuttings. The cuttings were soaked for 2 hours. The experiment was laid in four repetitions, 25 cuttings each. The use of solutions of the amino acid L-alanine and the complex preparation Aminozol increases the percentage of rooting of rhizome and stem (respectively) cuttings of peppermint by 7-18 %; such qualitative indicators as the number of roots formed, the length of shoots in rhizome cuttings, the height of the aerial part and the number of roots formed in stem cuttings are also improved. Considering that these preparations are not growth regulators in the classical sense and their use is allowed in the cultivation of organic products, we can recommend Aminozol and L-alanine as a replacement for synthetic auxins in the cultivation of peppermint in the organic farming system.