Breathing intensity of germinating seeds and sprouts of chicory root vegetable a member of the Asteraceae family

Abstract

Purpose: to present the results of experimental studies on the respiration intensity of germinating seeds and seedlings of root chicory. Methods. In the course of the research, the main materials for plant respiration and seed sugar were determined. Chicory root contains the bulk of its reserve material in the form of sucrose, which is closely related to plant respiration. This also contributes to theprocess of its processing and storage with the consumption of sugar used for respiration.Results. Different parts of the chicory root vegetable breathe at different intensities. Significant fluctuations in breathing intensity are also observed throughout the day, increasing sharply during the day and decreasing at night. These fluctuations are related to air and soil temperature. At temperatures increased by 10°C (within the range of 0°C to 30°C), the intensity of respiration increases 2.5 times, and changes in soil moisture are also noted, increasing or decreasing from 60% of its total moisture capacity. This pattern is observed with an increase in the application of mineral nutrients. Oxygen significantly affects the respiration intensity of germinating seeds and the subsequent growth and development of plants. During respiration, energy is released, which is used for all physiological processes in the plant organism (leaves, stems, and root system). However, scientists have noted that in the fine roots of chicory, respiration is more intense than in well-developed roots.Findings. The application of mineral fertilizers in the initial period, the growth and development of chicory plants affects the intensity of respiration, especially when applying organic manure fertilizer at a rate of 15 t/ha, which confirms the intensity of plant respiration and the close relationship between them. The intensity of plant respiration depends on optimal environmental conditions. More favorable weather and climatic conditions and nutrition promote the intensive growth of young seedlings, which is reflected in their more intensive respiration.