TY - JOUR AU - O. Samovol AU - S. Kondratenko AU - L. Shtepa AU - L.M. Uriupina PY - 2021/01/12 Y2 - 2024/03/29 TI - ADAPTIVE POTENTIAL THE LINES OF SPICY-AROMATIC SPECIES OF VEGETABLE PLANTS BY CONTENT OF VITAMIN C AND QUANTITATIVE CHARACTERISTICS WHAT ARE THE STRUCTURAL COMPONENTS OF YIELD JF - Vegetable and Melon Growing JA - VMG VL - 0 IS - 68 SE - Articles DO - 10.32717/0131-0062-2020-68-22-35 UR - https://vegetables-journal.com/index.php/journal/article/view/290 AB - The aim. Analyze the adaptive potential of linear samples of spicy-aromatic species of vegetable plants according to the criteria for assessing the ecological stability and selection value of genotypes and further select the best of them for ecological selection. Methods are the definition of general and specific adaptability, relative stability, ecological plasticity, selection value of genotype and homeostatic lines. Results. Evaluation of the parameters of adaptability, stability, plasticity, selection value and homeostaticity of spicy-aromatic plant species has already identified the best lines. There are: in parsley root on the length and width of the leaf rosette, root yield, the content of vitamin C in the leaves; in parsnips on the length and yield of roots, the content of vitamin C in the roots; in dill by the length of the leaf rosette, the yield of rosette leaves, the content of vitamin C in the leaves of the rosette; in coriander by the length of the leaf rosette, the yield of rosette leaves, the content in the leaves of the rosette of vitamin C. It has already been established that the most promising for selection were lines that were characterized by a low value of the regression coefficient (bi) on certain quantitative and qualitative characteristics. This effect provides the lines with high environmental plasticity under changes in environmental conditions in the direction of stress. According to the obtained results, this effect was manifested in two lines of root parsley, Nova 1 and Nova 3, on the basis of “leaf rosette length” (bi = -0.44 and bi = -1.91, respectively); in the standard variety Petryk and the Nova 9 parsnip line on the grounds of “root length” and “vitamin C content in root crops” (bi = -2.10 and bi = -5.33, respectively); in the line of fennel Nova 13 on the grounds of "leaf rosette length" and "yield of rosette leaves" (bi = - 0.07 and bi = -0.67, respectively), as well as in the standard variety of fennel Kharkivskyi-85 on the basis of content in the roots of vitamin C ”(bi = -1.0); in the standard variety of coriander Spicy on the grounds of "leaf rosette length" and "rosette leaf yield" (bi = -0.49 and bi = -1.26, respectively). Conclusions. Based on the assessment of spicy-aromatic species of vegetable plants on the parameters of adaptability, stability, plasticity and homeostaticity, 15 new homozygous lines were created. There are: 5 lines of root parsley; 4 lines of parsnip; 4 lines of dill; 2 lines of coriander. The selected lines are a valuable source of breeding material for the creation of varieties and hybrids of F1, adapted to such climatic changes as high fluctuations and a sharp decrease in precipitation over the years of research. ER -