Корреляционный анализ сопряженности уровня урожая с биометрическими показателями и элементами его структуры у озимой пшеницы

Abstract

The paper presents an analysis of the level of contingency and the contribution of each of the main yield components to the overall yield of winter wheat and their functional relationships in Balti steppe, Republic of Moldova. For the correlation analysis, the authors used the level of productivity of winter wheat and its main yield components obtained in the competitive variety trials during 2016-2020 in the Research Institute for Field Crops “Selectia”. In the experiment 6 morpho-biological indices for 15 typical varieties of 2 different ecotypes were analyzed. The coefficients of variation and correlation were determined according to the methodical guidance of Dospehov B.A. and Sedlovschi A.I. In the ecological conditions of the Republic of Moldova a strong direct correlation was established between the level of overall wheat productivity and its yield components - grain weight per ear and plant height, while an average correlation was revealed between overall productivity and the mass of  1000 grains and the amount of productive ears on the unit area (productive tillering).