栽植位置 年生에 따른 人蔘의 形質變異

Variation of Agronomic Characters in Ginseng Plants Cultivated under Different Planting Position

This study was carried out to obtain the basic information for development of ginseng varieties. Ginseng plants of one to five years were used for this study. Agronomic characters, such as stem diameter, stem length, stem weight, leaf length, leaf width, leaf weight, petiole length, number of leaves, number of leaflets, root length, main root length, root diameter, and root weight were determined. All of the characters of two-year-old plant showed low variability as compared with those of three-, four-and five-year-old plants. On the variations of characters according to the planting position, stem diameter, number of leaves, number of leaflets, root length, and main root length were found to be low variable at all of the plant ages, while the other characters were highly variable in three-, four-, and five-year-old plants. Generally, the growth of aerial portion of ginseng plants at above three years planted on the 1st and 5th lines were poorer than that of the 2nd, 3rd, and 4th lines, while the root growth of ginseng plants planted on the 1st and 2nd lines was better than that of the 3rd, 4th, and 5th lines. Root weight and root diameter related to yield were increased with the increase of plant age, but the length of main root was decreased.