Dependence of individual productivity of technical hemp plants on the norm of sowing of seeds and variety at the use of the wide row method of sowing

Abstract

Goal. To study the effectiveness of sowing rates of seeds and variety by the impact on the productivity of technical hemp plants in terms of the number of seeds per 1 plant, at the width between rows of 45 cm in the technology of growing the crop. Methods. Field, laboratory. According to the scheme by the method of field research, factor A is included — seed sowing rates, options — 0.6; 0.9; 1.2; 1.5; 1.8 million pcs/ha, factor B — varieties of hemp selected in the Institute of bast cultures: NAAN YuSO-31, Hliana, Hlesiya. Placement of plots of technical hemp plants —systematized storeyed structure. The number of repetitions — 4 times. To establish the effectiveness of the factors, a comparative statistical difference method based on the Student’s criterion at the level of reliable probability P0.95 and P0.99 was used. Results. The technological factor of the norm of sowing seeds with a row spacing of 45 cm is effective in influencing the productivity of technical hemp plants in terms of the number of seeds per 1 plant. The efficiency of the biological factor, i.e. the influence of hemp variety on plant productivity indicators according to the above parameter was also established. Conclusions. According to the norms of sowing seeds for options — 0.6; 0.9; 1.2; 1.5; 1.8 million pcs/ha in the order of comparison with a higher seeding rate for each step of the experiment there was a significant decrease in plant productivity by the number of seeds per 1 plant, where the indicators are characterized by the following data — 162.9>110.2>85.2>70.8>61.4 pcs of seeds from 1 plant. According to the results of the varietal assessment of individual productivity of cannabis plants, on average in the experiment, it was found that the maximum effectiveness was provided by the variety Hlesiya, where the figure was 114.4 pcs of seeds/plant.