Abstract
Gamma irradiation stimulates a broad range of change in physiology and biochemical alterations in plants by modulating specific defensive and metabolic pathways. Pre-planting cutting irradiation is deliberated as an effective method of increasing production, yield and chemical compositions in plants. In the current study, two varieties of Dendranthema grandiflora Tzelev (Chrysanthemum), namely Lalpari and DFRC-3, were subjected to gamma irradiation with absorbed doses of 10 Gy, 15 Gy, 20 Gy, 25 Gy, 30 Gy, and 35 Gy, along with a control group. Exposure to these varying doses of gamma radiation resulted in consistent changes in the growth and development of the plants. The current study examines the vegetative growth and biochemical composition of chlorophyll and carotenoids in both irradiated and non-irradiated plants of the vM1 generation. The results of the study indicate that gamma irradiation has a significant effect on vegetative growth, chlorophyll and carotenoid content in the vM1 generation of chrysanthemum. The data reveal that vegetative growth, chlorophyll, and carotenoid content decrease significantly in the first generation after gamma irradiation compared to the control group. The highest plant height, number of leaves, and levels of chlorophyll (chl a, chl b, and total chl) and carotenoids were recorded in non-irradiated plants for both varieties. Among the gamma-irradiated plants, those exposed to 10 Gy exhibited the highest vegetative growth, chlorophyll, and carotenoid content, while those exposed to 30 Gy showed the lowest levels in both varieties. This indicates that vegetative growth, chlorophyll, and carotenoid content decrease with increasing gamma doses. Exposure to the higher dose of 35 Gy of gamma rays resulted in plant mortality, with no plants surviving at this dose in both varieties. The biochemical analysis confirms that photosynthetic components are highly responsive to gamma irradiation and serve as a good indicator of persistence, providing substantial evidence of the effects of gamma irradiation. Therefore, gamma rays show promise as a key tool for enhancing breeding efficiency and increasing the frequency of regeneration.
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Claims 11
Claim · model-written summary
Gamma irradiation significantly decreased vegetative growth in the first generation relative to controls.
- Taxon
- chrysanthemum
.jpeg?width=60)
Chrysanthemumt0 - Treatment
- gamma irradiatione0
- Outcome
- vegetative growthe0
- Direction
- decreasee0
- Comparator
- control groupe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpeg?width=500)
Verbatim
e0“vegetative growth, chlorophyll, and carotenoid content decrease significantly in the first generation after gamma irradiation compared to the control group”
t0“chrysanthemum”
Claim · model-written summary
Gamma irradiation significantly decreased chlorophyll content in the first generation relative to controls.
- Taxon
- chrysanthemumChrysanthemumt0
- Treatment
- gamma irradiatione0
- Outcome
- chlorophylle0
- Direction
- decreasee0
- Comparator
- control groupe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“vegetative growth, chlorophyll, and carotenoid content decrease significantly in the first generation after gamma irradiation compared to the control group”
t0“chrysanthemum”
Claim · model-written summary
Gamma irradiation significantly decreased carotenoid content in the first generation relative to controls.
- Taxon
- chrysanthemumChrysanthemumt0
- Treatment
- gamma irradiatione0
- Outcome
- carotenoid contente0
- Direction
- decreasee0
- Comparator
- control groupe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“vegetative growth, chlorophyll, and carotenoid content decrease significantly in the first generation after gamma irradiation compared to the control group”
t0“chrysanthemum”
Claim · model-written summary
Non-irradiated plants of both varieties had the highest height and leaf number.
- Taxon
- chrysanthemumChrysanthemumt0
- Treatment
- non-irradiatede0
- Outcome
- plant height, number of leavese0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest plant height, number of leaves, and levels of chlorophyll (chl a, chl b, and total chl) and carotenoids were recorded in non-irradiated plants for both varieties”
t0“chrysanthemum”
Claim · model-written summary
Non-irradiated plants of both varieties had the highest chlorophyll and carotenoid levels.
- Taxon
- chrysanthemumChrysanthemumt0
- Treatment
- non-irradiatede0
- Outcome
- levels of chlorophyll (chl a, chl b, and total chl) and carotenoidse0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest plant height, number of leaves, and levels of chlorophyll (chl a, chl b, and total chl) and carotenoids were recorded in non-irradiated plants for both varieties”
t0“chrysanthemum”
Claim · model-written summary
Among irradiated plants, 10 Gy gave the highest vegetative growth and pigment contents in both varieties.
- Taxon
- chrysanthemumChrysanthemumt0
- Treatment
- 10 Gye0
- Outcome
- vegetative growth, chlorophyll, and carotenoid contente0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“those exposed to 10 Gy exhibited the highest vegetative growth, chlorophyll, and carotenoid content”
t0“chrysanthemum”
Claim · model-written summary
Among irradiated plants, 30 Gy gave the lowest levels in both varieties.
- Taxon
- chrysanthemumChrysanthemumt0
- Treatment
- 30 Gye0
- Outcome
- lowest levelse0
- Direction
- loweste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“those exposed to 30 Gy showed the lowest levels in both varieties”
t0“chrysanthemum”
Claim · model-written summary
Increasing gamma dose decreased vegetative growth and pigment contents.
- Taxon
- chrysanthemumChrysanthemumt0
- Treatment
- gamma dosese0
- Outcome
- vegetative growth, chlorophyll, and carotenoid contente0
- Direction
- decreasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“vegetative growth, chlorophyll, and carotenoid content decrease with increasing gamma doses”
t0“chrysanthemum”
Claim · model-written summary
No plants of either variety survived 35 Gy irradiation.
- Taxon
- chrysanthemumChrysanthemumt0
- Treatment
- 35 Gy of gamma rayse0
- Outcome
- plant mortalitye0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Exposure to the higher dose of 35 Gy of gamma rays resulted in plant mortality, with no plants surviving at this dose in both varieties”
t0“chrysanthemum”
Claim · model-written summary
The authors identify photosynthetic components as indicators of persistence under gamma irradiation.
- Taxon
- chrysanthemumChrysanthemumt0
- Outcome
- good indicator of persistencee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“photosynthetic components are highly responsive to gamma irradiation and serve as a good indicator of persistence”
t0“chrysanthemum”
Claim · model-written summary
The authors suggest gamma rays for improving breeding efficiency and regeneration frequency.
- Taxon
- chrysanthemumChrysanthemumt0
- Outcome
- enhancing breeding efficiency and increasing the frequency of regeneratione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“gamma rays show promise as a key tool for enhancing breeding efficiency and increasing the frequency of regeneration”
t0“chrysanthemum”
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16 papers more in this group
See all 20 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.