Abstract
Depletion of the ozone layer leads to increased ultraviolet radiation, which affects the growth and functioning of plants and leads to their various physiological, biochemical, morphological and ultrastructural changes. When studying the effect of ultraviolet radiation on seed sowing qualities and biometric indicators of morphological organs of plants of various cultures, scientists did not come to a consensus on the optimal parameters of its effects. For seeds of each plant variety, there is an optimal amount of energy absorbed, resulting in a maximum effect. Ecologically significant low ultraviolet radiation changes the metabolism of reactive oxygen species and plant antioxidant systems by increasing enzyme regulation. The relevance of studies in this direction is obvious, as it allows you to stimulate the germination of seeds with physical influences, increasing their laboratory and field germination. The authors obtained and published new data on comparison of sown, crop and antioxidant properties of seeds and seedlings, seed viability, microzelenium biomass formation and change of total antioxidant activity of vegetable crops after thermodehydration. As a continuation of these studies, the purpose of this work was to study the effect of ultraviolet radiation on the biochemical properties of plants. The total antioxidant activity of sugar beet and nougat sprouts in the experiment increased under the influence of stress ultraviolet radiation. Compared to control samples (germination according to GOST in the dark), under the influence of ultraviolet radiation, antioxidant activity increases by 11.4-17.4% otn. Ultraviolet radiation is damaging factors of plant growth and development, which is manifested at different stages of ontogenesis. Thus, sowing properties are reduced (germination of sugar beet seeds is less than control by 18%, in nougat seeds by 12%), above-ground biomass at the end of the germination period is less by 49.0% in sugar beet and by 16.5% in Abyssinian nougat. Resistance to the damaging effects of ultraviolet radiation depends on the genetic nature of the plant: in the experiment, the sprouts of the Abyssinian nuga turned out to be more resistant.
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Claims 6
Claim · model-written summary
UV increased antioxidant activity in sugar beet and nougat sprouts by 11.4–17.4% relative to dark controls.
- Taxon
- sugar beet
Beta vulgaris subsp. vulgarise0 - Treatment
- ultraviolet radiatione0
- Outcome
- antioxidant activitye0
- Direction
- increasese0
- Value
- 11.4-17.4% otn.e0
- Comparator
- control samples (germination according to GOST in the dark)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The total antioxidant activity of sugar beet and nougat sprouts in the experiment increased under the influence of stress ultraviolet radiation. Compared to control samples (germination according to GOST in the dark), under the influence of ultraviolet radiation, antioxidant activity increases by 11.4-17.4% otn.”
Claim · model-written summary
UV lowered sugar beet seed germination by 18% versus control.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarise0
- Treatment
- ultraviolet radiatione0
- Outcome
- germination of sugar beet seedse0
- Direction
- lesse0
- Value
- 18%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ultraviolet radiation is damaging factors of plant growth and development, which is manifested at different stages of ontogenesis. Thus, sowing properties are reduced (germination of sugar beet seeds is less than control by 18%”
Claim · model-written summary
UV lowered nougat seed germination by 12% versus control.
Not reportedTreatmentComparator
Verbatim
e0“in nougat seeds by 12%”
Claim · model-written summary
UV reduced sugar beet aboveground biomass by 49.0% at the end of germination.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarise0
- Outcome
- above-ground biomasse0
- Direction
- lesse0
- Value
- 49.0%e0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“above-ground biomass at the end of the germination period is less by 49.0% in sugar beet”
Claim · model-written summary
UV reduced Abyssinian nougat aboveground biomass by 16.5%.
Not reportedTreatmentComparator
Verbatim
e0“by 16.5% in Abyssinian nougat”
Claim · model-written summary
Abyssinian nuga sprouts were more resistant to ultraviolet radiation.
Verbatim
e0“the sprouts of the Abyssinian nuga turned out to be more resistant”
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