INFLUENCE OF ELEMENTS OF CROP TECHNOLOGY ON PRODUCTIVITY AND QUALITY OF SEEDS GUIZOTIA

Abstract

The research objective was to study the productivity of Guizotia abyssinica, depending on the seeding rate and methods of sowing. The study of technology elements was made in 2017-2019. Three seeding rates from 1.0 to 3.0 million germinating seeds per hectare were studied against the background of a wide-row and row sowing. Field germination of crop ranged from 84.9-86.6%. There is also a tendency to increase it by 0.7-1.0% by the row sowing. By the wide-row sowing, field germi-nation varies between 86.3-86.6% and does not vary significantly depending on the seeding rate. The survival capacity of plants ranged from 92.5 to 94.2% according to variants. The highest values of this indicator (94.2%) were obtained in the variant with a seeding rate of 3.0 million by the row sowing. The optimal conditions for the formation of productivity were established in 2017. The highest seed yield (1.69-1.83 t/ha) was obtained regardless of technology elements. High seed yields were ob-served in the variant with a seeding rate of 2.0 million germinating seeds per hectare by the row sow-ing and amounted to 1.74-1.83 t/ha. In this variant, the seeds were characterized by high oil content of 41.8 and 41.9%. The largest seeds formed at a seed rate of 1.0 million (3.67 g). With an increase in the seeding rate, the weight of 1000 seeds decreased. The linoleic acid content ranged from 71.5 to 78.0% according to the experimental variants. The amount of oleic acid is 5.4-7.7%, depending on the element of agricultural technology.

Keywords

• guizotia abyssinica
• seeding rates
• methods of sowing
• yield
• oil content
• fatty acids