Towards the Development of Innovative Technology for Optimizing the Placement of Fruit Crop Varieties Based on an Analysis of Their Adaptability to the Effects of Temperature Stress
摘要
A radical increase in fruit crop yields requires new knowledge about the defense and adaptive reactions of specific varieties to the limits of their growing environment. The purpose of the research is to develop new scientific approaches to increasing the yields of fruit crop varieties by obtaining new knowledge about the degree of their adaptability to adverse temperature conditions in the winter and spring period, using the example of a peach in the Republic of Kabardino-Balkaria. Data from long-term observations on crop losses of three peach varieties with minimum air temperatures for the period from 1985 to 2024 were compared in the steppe, foothill, and mountain steppe gardening zones of the Republic. Using geoinformation systems, spatial and temporal scenarios and a forecast of land suitability by 2040, should the identified trends persist, have been constructed. The values of critical temperatures of peach varieties by development phases are established and the probability of crop losses is estimated on average for two ranges of years: 1985–2000 and 2001–2024, taking into account the cyclical climate. Spatial modeling has generally shown an increase in the likelihood of critical air temperatures in the Republic, especially in the mountains and foothills, in recent decades, despite the observed climate changes in the research area toward a rise in average air temperatures. A joint analysis of the created maps of the suitability of land for growing peaches as of 2024 and forecast scenarios of the suitability of land in the region for 2040 allow us to identify lands whose suitability, should the existing trends persist, will not change by 2040, either improve to acceptable values, or remain low and even worsen. The proposed approach makes it possible to plan the placement of varieties of perennial fruit crops, taking into account global climate changes. Within the framework of this approach, only trends in changes in critical temperatures of the winter and spring period at various heights of the terrain are taken into account