BIOLOGICAL FEATURES OF PROMISING CLONE PARENT STOCKS OF STONE FRUIT CULTURES

Abstract

The article substantiates the necessity to study the economic and biological features of promising clonal stocks, suitable for use in intensive technologies for cultivating stone fruit crops in order to identify their adaptive capacity in agroecological conditions of the Chechen Republic. The work was carried out in a greenhouse complex with fogging installations of the NPF "Gardens of Chechnya" in accordance with the work program and research methods in horticulture. Cuttings were treated before planting with indole butyric acid (IBA) and 50% aqueous solution of ethanol according to F.Ya. Polikarpova and V.V. Pilyugina (1991) the method. To obtain high-quality rootstock material from grassy cuttings with a semi-lignified heel a modified substrate in container culture was used consisting of equal volumes of peat, river sand, turfy ground (this soil mixture is sufficiently porous and prevents over-wetting of the root placement zone), and auxinic preparation IMC increasing root production ability of plants. As a control, a 50% ethanol aqueous solution was used. The reference area is 9 m², the replication of the experience is quadruple, the location of the experiment is randomized. The region of plant alimentation is 6 x 6 cm.  Experimental data on the effect of the auxin yield of IMK and 50% of the aqueous solution of ethanol (K) on the duration of rooting, the dynamics of the rhizogenerated activity, the main phytometric and phytophysiological parameters of different forms of clonal rootstocks. The growth activity of clonal rootstocks is analyzed on the basis of the studied dimensional parameters of rooted grassy cuttings.