Abstract
Abstract A pot experiment was conducted under natural climatic conditions to study the effect of low doses of gamma irradiation (0, 5, 10, and 20 Gy) on the performance of winter chickpea (Cicer arietinum L.) in the presence of increased supply of 15N labeled ammonium sulfate (0, 20, 50, and 100 kg N ha‐1). Presowing seed irradiation produced a significant increase in dry matter production (up to 3 6%) and total nitrogen yield (up to 45%). The stimulative effect of irradiation was more pronounced with the application of NH4 +‐N fertilizer. Seed irradiation increased the amount of N2‐fixation by 8–61% depending on the dose and level of NH4 +‐N fertilizer rate. A 10 Gy was found to be the optimal irradiation dose for enhancing N2‐fixation. High levels of NH4 +‐N decreased the percentage and the amount of N2‐fixation, but did not affect nodule formation. However, the presowing 10 Gy irradiation dose reduced the negative effect of ammonia‐N fertilizer on N2‐fixation. Therefore, we recommend irradiating chickpea seeds with a 10 Gy dose before planting in soil containing high levels of mineral nitrogen to reduce its negative effect on N2‐fixation.
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Claims 9
Claim · model-written summary
Presowing seed irradiation significantly increased dry matter production of chickpea by up to 36%.
- Taxon
- chickpea
Cicer arietinumt0 - Treatment
- Presowing seed irradiatione0
- Outcome
- dry matter productione0
- Direction
- increasee0
- Value
- up to 3 6%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chickpea”
e0“Presowing seed irradiation produced a significant increase in dry matter production (up to 3 6%) and total nitrogen yield (up to 45%)”
Claim · model-written summary
Presowing seed irradiation significantly increased total nitrogen yield of chickpea by up to 45%.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- Presowing seed irradiatione0
- Outcome
- total nitrogen yielde0
- Direction
- increasee0
- Value
- up to 45%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chickpea”
e0“Presowing seed irradiation produced a significant increase in dry matter production (up to 3 6%) and total nitrogen yield (up to 45%)”
Claim · model-written summary
The stimulative effect of irradiation was more pronounced with ammonium nitrogen fertilizer.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- irradiatione0
- Outcome
- stimulative effecte0
- Direction
- more pronouncede0
- Qualifier
- with the application of NH4e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chickpea”
e0“The stimulative effect of irradiation was more pronounced with the application of NH4”
Claim · model-written summary
Seed irradiation increased the amount of N2 fixation by 8–61% depending on dose and ammonium fertilizer level.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- Seed irradiatione0
- Outcome
- amount of N2‐fixatione0
- Direction
- increasede0
- Value
- 8–61%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chickpea”
e0“Seed irradiation increased the amount of N2‐fixation by 8–61%”
Claim · model-written summary
A 10 Gy dose was the optimal irradiation dose for enhancing N2 fixation.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- 10 Gye0
- Outcome
- N2‐fixatione0
- Direction
- enhancinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chickpea”
e0“A 10 Gy was found to be the optimal irradiation dose for enhancing N2‐fixation”
Claim · model-written summary
High levels of ammonium nitrogen decreased the percentage and the amount of N2 fixation.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- High levels of NH4 +‐Ne0
- Outcome
- the percentage and the amount of N2‐fixatione0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chickpea”
e0“High levels of NH4 +‐N decreased the percentage and the amount of N2‐fixation”
Claim · model-written summary
High levels of ammonium nitrogen did not affect nodule formation.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- High levels of NH4 +‐Ne1
- Outcome
- nodule formatione0
- Direction
- did not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chickpea”
e0“but did not affect nodule formation”
e1“High levels of NH4 +‐N”
Claim · model-written summary
Presowing 10 Gy irradiation reduced the negative effect of ammonium nitrogen fertilizer on N2 fixation.
- Taxon
- chickpeaCicer arietinumt0
- Treatment
- presowing 10 Gy irradiation dosee0
- Outcome
- negative effect of ammonia‐N fertilizer on N2‐fixatione0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chickpea”
e0“the presowing 10 Gy irradiation dose reduced the negative effect of ammonia‐N fertilizer on N2‐fixation”
Claim · model-written summary
The authors recommend irradiating chickpea seeds with 10 Gy before planting in soil with high mineral nitrogen to reduce its negative effect on N2 fixation.
- Taxon
- chickpeaCicer arietinume0
- Outcome
- reduce its negative effect on N2‐fixatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“chickpea”
e0“we recommend irradiating chickpea seeds with a 10 Gy dose before planting in soil containing high levels of mineral nitrogen to reduce its negative effect on N2‐fixation”
The same questions in other papers
radiation · symbiosis · Cicer arietinum (chickpea)Results agree
1 paper in the same direction as this paper
- positive
radiation · yield · Cicer arietinum (chickpea)Results agree
5 papers in the same direction as this paper
- positive
- positive
- positive
2 papers more in this group
See all 6 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.