Jerusalem artichoke (JA) is a multi-purpose crop used as forage or in human consumption, with applications in pharmacy and energy (biomass and bioenergy production). In 2018 an experiment was conducted regarding crop’s green mass and tubers productivity. It involved 39 varieties of JA, including 2 enlisted in the Register of plant varieties of Republic of Moldova – Amicu-1, Amicu-2. The varieties were planted from tubers of 35-65grams in early november 2017, at a distance of 35cm per row and 70cm between rows, one tuber per nest. Fertilizers and irrigation were not applied. As an experiment the first 2 rows were planted with tubers with prolonged forms (stools – thin and long, resembling the root), 7 rows with irregular forms and the rest of tubers were of more or less round shaped, a few tubers had perfectly round shape. Harvest was executed in early november 2018, the green mass was counted per nest and weighted (without the roots) on the 2.11.2018 (3 rows), the rest of green mass was weighted on 21.03.2019 (whole rows weighting). Tubers were counted (only big tubers, 40+ grams) and weighted in the harvest period. Overall the experiment counted 1903 nests and 3034 plants, planted in 31 rows, 86 nests on 13 rows were affected by rot. The total mass of tubers was 1119,02kg, the number of big tubers was 13245, weighting 722,71kg and the weight of small tubers was 396,31kg. The weight of green mass measured in the harvest period was 67,1kg, with a total of 215 plants on 104 nests. The weight of green mass, scaled in spring 2019 was 380,6kg, with a total of 2819 plants on 1713 nests. Nests that were planted with stools provided only small tubers or no tubers at all: the first two rows planted with stools (122 nests) provided 49,46kg of small tubers, the total weight of dry mass was 35,8kg, 198 plants. The tubers with irregular forms provided 180,7kg of tubers, from which 1270 big tubers with a total mass of 70,9kg and 109,8kg of small tubers, the weight of dry green mass was 105,1kg, 852 plants. Based on subjective observation the nests, planted with round shaped tubers provided mostly round shaped tubers, with a smaller amount of small or irregular shaped tubers.