Abstract
Identification of mechanisms of adaptive response to weak external exposure is one of the most complex and urgent problems of the modern biology.Such reactions include the effect of hormesis which is the stimulating effect of moderate doses of stressors (e.g. the low doses of various physical and chemical agents) repeatedly confirmed at all levels of the organization of living matter.The dynamics of the growth and development of barley (Hordeum vulgare L.) plants, grown from γirradiated barley seeds of Nur variety, which combines high productivity potential (up to 80 centner/ha), resistance to drought, good forage and brewing qualities of grain, high resistance to lodging and serious diseases, was studied in a field trial.It was shown that irradiation of seeds significantly influenced the development of plants throughout the vegetative period.The duration of the initial stages of ontogenesis was shortened, and the phase of full ripeness came on 5-7 days earlier than in the control.The length of the stems, the weight of 1000 grains, the number of grains per ear, the number of productive stems, the weight of straw and ears increased.The dependence of economically valuable traits on the dose of γ-irradiation of seeds was statistically significantly better described by models that take into account the effect of hormesis.The manifestation of the effect of pre-sowing irradiation was different in the years with contrasting weather conditions.In the dry year of 2014, the increase in yield was determined by the increase in the number of productive stems, and under optimal conditions in 2015, this was due to the increase in the number of grains per ear.In 2016, an increase in the amount of precipitation by 2.5 times relative to the climatic norm leveled the stimulating effects.The results obtained in this study indicate that pre-sowing -irradiation of seeds notably affects the development of barley plants throughout the growing season, significantly changing the structure of the crop.In the plants from the seeds irradiated at stimulating doses, the manifestation of economically valuable traits was statistically significantly increased when vegetation seasons were contrasting in weather conditions.Realization of the effect of hormesis specifically depends on the conditions in which the plants developed.
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Claims 11
Claim · model-written summary
Pre-sowing irradiation of barley seeds significantly influenced plant development throughout the vegetative period.
- Taxon
- Hordeum vulgare L.
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Hordeum vulgaret0 - Treatment
- irradiation of seedse0
- Outcome
- development of plants throughout the vegetative periode0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
t0“Hordeum vulgare L.”
e0“irradiation of seeds significantly influenced the development of plants throughout the vegetative period”
Claim · model-written summary
Irradiated barley seeds shortened the duration of the initial stages of ontogenesis compared with the control.
- Taxon
- Hordeum vulgare L.Hordeum vulgaret0
- Treatment
- irradiation of seedse0
- Outcome
- duration of the initial stages of ontogenesise1
- Direction
- shortenede1
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Hordeum vulgare L.”
e0“irradiation of seeds significantly influenced the development of plants throughout the vegetative period”
e1“The duration of the initial stages of ontogenesis was shortened”
e2“the phase of full ripeness came on 5-7 days earlier than in the control”
Claim · model-written summary
Irradiated barley seeds brought full ripeness 5-7 days earlier than the control.
- Taxon
- Hordeum vulgare L.Hordeum vulgaret0
- Treatment
- irradiation of seedse0
- Outcome
- phase of full ripenesse2
- Direction
- earliere2
- Value
- 5-7 dayse2
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Hordeum vulgare L.”
e0“irradiation of seeds significantly influenced the development of plants throughout the vegetative period”
e2“the phase of full ripeness came on 5-7 days earlier than in the control”
Claim · model-written summary
Irradiated barley seeds increased stem length, 1000-grain weight and grains per ear relative to the control.
- Taxon
- Hordeum vulgare L.Hordeum vulgaret0
- Treatment
- irradiation of seedse0
- Outcome
- The length of the stems, the weight of 1000 grains, the number of grains per eare3
- Direction
- increasede3
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Hordeum vulgare L.”
e0“irradiation of seeds significantly influenced the development of plants throughout the vegetative period”
e3“The length of the stems, the weight of 1000 grains, the number of grains per ear, the number of productive stems, the weight of straw and ears increased”
e2“the phase of full ripeness came on 5-7 days earlier than in the control”
Claim · model-written summary
Irradiated barley seeds increased the number of productive stems and the weight of straw and ears relative to the control.
- Taxon
- Hordeum vulgare L.Hordeum vulgaret0
- Treatment
- irradiation of seedse0
- Outcome
- the number of productive stems, the weight of straw and earse3
- Direction
- increasede3
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Hordeum vulgare L.”
e0“irradiation of seeds significantly influenced the development of plants throughout the vegetative period”
e3“The length of the stems, the weight of 1000 grains, the number of grains per ear, the number of productive stems, the weight of straw and ears increased”
e2“the phase of full ripeness came on 5-7 days earlier than in the control”
Claim · model-written summary
Economically valuable barley traits were better described by models that include the hormesis effect.
- Taxon
- Hordeum vulgare L.Hordeum vulgaret0
- Outcome
- economically valuable traitse4
- Comparator
- models that take into account the effect of hormesise5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Hordeum vulgare L.”
e4“The dependence of economically valuable traits on the dose”
e5“statistically significantly better described by models that take into account the effect of hormesis”
Claim · model-written summary
In the dry year of 2014, the yield increase was due to more productive stems.
- Taxon
- Hordeum vulgare L.Hordeum vulgaret0
- Outcome
- yielde7
- Direction
- increasee7
- Qualifier
- the increase in the number of productive stemse7
- Setting
- dry year of 2014e7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Hordeum vulgare L.”
e7“In the dry year of 2014, the increase in yield was determined by the increase in the number of productive stems”
Claim · model-written summary
Under optimal conditions in 2015, the yield increase was due to more grains per ear.
- Taxon
- Hordeum vulgare L.Hordeum vulgaret0
- Outcome
- the number of grains per eare7
- Direction
- increasee7
- Setting
- optimal conditions in 2015e7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Hordeum vulgare L.”
e7“under optimal conditions in 2015, this was due to the increase in the number of grains per ear”
Claim · model-written summary
In 2016, a 2.5-fold precipitation increase above the climatic norm leveled the stimulating effects of irradiation.
- Taxon
- Hordeum vulgare L.Hordeum vulgaret0
- Treatment
- an increase in the amount of precipitation by 2.5 times relative to the climatic norme7
- Outcome
- stimulating effectse7
- Direction
- levelede7
- Value
- 2.5 timese7
- Setting
- 2016e7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Hordeum vulgare L.”
e7“In 2016, an increase in the amount of precipitation by 2.5 times relative to the climatic norm leveled the stimulating effects”
Claim · model-written summary
The manifestation of economically valuable traits in plants from stimulating-dose irradiated seeds was significantly increased in seasons with contrasting weather.
- Taxon
- Hordeum vulgare L.Hordeum vulgaret0
- Treatment
- stimulating dosese7
- Outcome
- the manifestation of economically valuable traitse7
- Direction
- increasede7
- Setting
- vegetation seasons were contrasting in weather conditionse7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Hordeum vulgare L.”
e7“In the plants from the seeds irradiated at stimulating doses, the manifestation of economically valuable traits was statistically significantly increased when vegetation seasons were contrasting in weather conditions”
Claim · model-written summary
The effect of hormesis depends on the conditions in which the plants developed.
- Taxon
- Hordeum vulgare L.Hordeum vulgaret0
- Outcome
- Realization of the effect of hormesise7
- Setting
- the conditions in which the plants developede7
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Hordeum vulgare L.”
e7“Realization of the effect of hormesis specifically depends on the conditions in which the plants developed”
The same questions in other papers
radiation · yield · Hordeum vulgare (barley)Positive and negative results
8 papers in the same direction as this paper · 3 in the opposite direction
- negative
- no effect
- negative
8 papers more in this group
See all 12 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.