Abstract
The effect of different doses and dose rates of gamma radiation on the viability of khapra beetle Trogoderma granarium (larval stage) was studied in laboratory experiments in 2019–2020. The pest-infested grain of spring barley of the Nur variety was irradiated on a GUR-120 unit at dose ranges of 50–450 Gy (dose rate 100, 500, and 950 Gy/h) and 500–1000 Gy (dose rate 950 Gy/h). The irradiation of the khapra beetle at the dose range of 50–450 Gy and at a dose rate of 100 Gy/h caused a total mortality of larvae at doses of 350 and 450 Gy after 7 days, 100 and 300 Gy after 8 days, and 50, 150, 200, 250, and 400 Gy only after 14–17 days. The irradiation of larvae in the same dose range but at a rate of 500 Gy/h led to a more extended mortality rate of the pest population: 8 days at 400 Gy, 12 days at 200 and 300 Gy, 14 days at 350 Gy, and 18 days at doses of 50, 100, 250, and 450 Gy. At 150 Gy, the mortality rate reached 90% on the 14th day and remained at this level for 9 days, which can be explained by different ages of the pest larvae. When the dose rate was increased to 950 Gy/h, the dynamics of the death of khapra beetle larvae demonstrated a long plateau at doses of 350 and 450 Gy at a mortality rate of 70–90%, which caused a delay in their total death up to 20–24 days. The irradiation of the pest in the dose range of 500–1000 Gy at a radiation dose rate of 950 Gy/h proved to be more effective: the total mortality of the larvae was recorded on the fifth to sixth day. Ionizing radiation did not have a significant effect on the content of proteins, fat, fiber, dry matter, and nitrogen-free extractives in barley grain. The ash content statistically significantly changed under the effect of irradiation, but it was, however, no more than 3–6%.
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Claims 8
Claim · model-written summary
At 100 Gy/h, 350 and 450 Gy caused total larval mortality after seven days.
- Taxon
- spring barley
.jpg?width=60)
Hordeum vulgaret0 - Treatment
- 350 and 450 Gye0
- Interactor
- khapra beetlee0pest
- Outcome
- total mortality of larvaee0
- Direction
- total mortalitye0
- Value
- 7 dayse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“The irradiation of the khapra beetle at the dose range of 50–450 Gy and at a dose rate of 100 Gy/h caused a total mortality of larvae at doses of 350 and 450 Gy after 7 days”
t0“spring barley of the Nur variety”
t1“The effect of different doses and dose rates of gamma radiation on the viability of khapra beetle Trogoderma granarium (larval stage) was studied in laboratory experiments in 2019–2020.”
Claim · model-written summary
At 100 Gy/h, 100 and 300 Gy caused total larval mortality after eight days.
- Taxon
- spring barleyHordeum vulgaret0
- Treatment
- 100 and 300 Gye0
- Interactor
- khapra beetlet1pest
- Outcome
- khapra beetlet1
- Value
- 8 dayse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“100 and 300 Gy after 8 days”
t0“spring barley of the Nur variety”
t1“The effect of different doses and dose rates of gamma radiation on the viability of khapra beetle Trogoderma granarium (larval stage) was studied in laboratory experiments in 2019–2020.”
Claim · model-written summary
At 500 Gy/h, larval mortality required 8 to 18 days across doses.
- Taxon
- spring barleyHordeum vulgaret0
- Interactor
- khapra beetlet1pest
- Outcome
- 8 days at 400 Gy, 12 days at 200 and 300 Gy, 14 days at 350 Gy, and 18 days at doses of 50, 100, 250, and 450 Gy.e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“8 days at 400 Gy, 12 days at 200 and 300 Gy, 14 days at 350 Gy, and 18 days at doses of 50, 100, 250, and 450 Gy.”
t0“spring barley of the Nur variety”
t1“The effect of different doses and dose rates of gamma radiation on the viability of khapra beetle Trogoderma granarium (larval stage) was studied in laboratory experiments in 2019–2020.”
Claim · model-written summary
At 150 Gy, mortality reached 90% on day 14.
- Taxon
- spring barleyHordeum vulgaret0
- Treatment
- 150 Gye0
- Interactor
- khapra beetlet1pest
- Outcome
- mortality ratee0
- Direction
- reachede0
- Value
- 90%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At 150 Gy, the mortality rate reached 90% on the 14th day and remained at this level for 9 days”
t0“spring barley of the Nur variety”
t1“The effect of different doses and dose rates of gamma radiation on the viability of khapra beetle Trogoderma granarium (larval stage) was studied in laboratory experiments in 2019–2020.”
Claim · model-written summary
At 950 Gy/h and 350 or 450 Gy, larval mortality plateaued at 70–90%, delaying total death to 20–24 days.
- Taxon
- spring barleyHordeum vulgaret0
- Interactor
- khapra beetlet1pest
- Outcome
- mortality ratee0
- Direction
- delaye0
- Value
- 70–90%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“at doses of 350 and 450 Gy at a mortality rate of 70–90%, which caused a delay in their total death up to 20–24 days.”
t0“spring barley of the Nur variety”
t1“The effect of different doses and dose rates of gamma radiation on the viability of khapra beetle Trogoderma granarium (larval stage) was studied in laboratory experiments in 2019–2020.”
Claim · model-written summary
At 950 Gy/h, doses of 500–1000 Gy achieved total larval mortality on day five or six.
- Taxon
- spring barleyHordeum vulgaret0
- Treatment
- 500–1000 Gye0
- Interactor
- khapra beetlet1pest
- Outcome
- total mortality of the larvaee0
- Direction
- more effectivee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The irradiation of the pest in the dose range of 500–1000 Gy at a radiation dose rate of 950 Gy/h proved to be more effective: the total mortality of the larvae was recorded on the fifth to sixth day.”
t0“spring barley of the Nur variety”
t1“The effect of different doses and dose rates of gamma radiation on the viability of khapra beetle Trogoderma granarium (larval stage) was studied in laboratory experiments in 2019–2020.”
Claim · model-written summary
Irradiation did not significantly affect five measured barley grain composition traits.
- Taxon
- barleyHordeum vulgaree0
- Treatment
- Ionizing radiatione0
- Outcome
- content of proteins, fat, fiber, dry matter, and nitrogen-free extractivese0
- Direction
- did not have a significant effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ionizing radiation did not have a significant effect on the content of proteins, fat, fiber, dry matter, and nitrogen-free extractives in barley grain.”
Claim · model-written summary
Irradiation significantly changed barley grain ash content by no more than 3–6%.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- irradiatione0
- Outcome
- ash contente0
- Value
- 3–6%e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The ash content statistically significantly changed under the effect of irradiation, but it was, however, no more than 3–6%.”
t0“spring barley of the Nur variety”
The same questions in other papers
radiation · quality: grain · Hordeum vulgare (barley)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- no effect
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.