Abstract
Induction of haploid plants in fruit crops through gamma irradiated pollen technique is of paramount importance in modern fruit breeding to reduce the breeding cycle. But the major problem of this technique is the sensitivity of pollen grains to higher irradiation doses. Present work analyzed the viability, in vitro germinability and pollen tube growth of gamma ray irradiated pollens of 2 different Citrus species: C. limetta, and C. sinensis. Both viability and in vitro germination capacity of irradiated pollen decreased gradually with increasing concentrations of irradiation inboth the pollen parent; however, at highest irradiation dose (400 Gy), reduction of pollen viability and in vitro germination capacity, as compared to respective controls was recorded minimum in C. limetta (11.07 and 29.78%, respectively). In vitro pollen tube length as measured at 24, 48 and 72 hr after incubation, was found maximum in C.limetta (267.83, 303.24 and 325.57 μm, respectively). Our experiment revealed that pollen of C. limetta has higher resistance to gamma ray irradiation as compared to C. sinensis, hence C. limetta can be employed as more reliable pollen parent in haploidy programme of Citrus.
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Claims 5
Claim · model-written summary
Pollen viability and in vitro germination decreased with increasing gamma irradiation dose in Citrus.
- Treatment
- increasing concentrations of irradiatione0
- Outcome
- viability and in vitro germination capacity of irradiated pollene0
- Direction
- decreasede0
CitrusNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in Citrus”
e0“Both viability and in vitro germination capacity of irradiated pollen decreased gradually with increasing concentrations of irradiation inboth the pollen parent”
Claim · model-written summary
At 400 Gy, the reduction in pollen viability and in vitro germination was smallest in C. limetta (11.07 and 29.78%).
- Material
- C. limettae1
- Treatment
- highest irradiation dose (400 Gy)e1
- Outcome
- reduction of pollen viability and in vitro germination capacitye1
- Direction
- minimume1
- Value
- 11.07 and 29.78%e1
- Comparator
- respective controlse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in Citrus”
e1“at highest irradiation dose (400 Gy), reduction of pollen viability and in vitro germination capacity, as compared to respective controls was recorded minimum in C. limetta (11.07 and 29.78%, respectively)”
Claim · model-written summary
In vitro pollen tube length was greatest in C. limetta at 24, 48 and 72 hours.
- Material
- C.limettae2
- Outcome
- in vitro pollen tube lengthe2
- Direction
- maximume2
- Value
- 267.83, 303.24 and 325.57e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in Citrus”
e2“In vitro pollen tube length as measured at 24, 48 and 72 hr after incubation, was found maximum in C.limetta (267.83, 303.24 and 325.57”
Claim · model-written summary
Pollen of C. limetta was more resistant to gamma ray irradiation than pollen of C. sinensis.
- Material
- C. limettae3
- Treatment
- gamma ray irradiatione3
- Outcome
- resistance to gamma ray irradiatione3
- Direction
- highere3
- Comparator
- C. sinensise3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in Citrus”
e3“pollen of C. limetta has higher resistance to gamma ray irradiation as compared to C. sinensis”
Claim · model-written summary
The authors recommend C. limetta as a more reliable pollen parent in Citrus haploidy programmes.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in Citrus”
e4“C. limetta can be employed as more reliable pollen parent in haploidy programme of Citrus”
The same questions in other papers
radiation · disease · CitrusPositive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
radiation · yield · CitrusResults agree
1 paper in the same direction as this paper
- positive
radiation · growth · CitrusResults agree
2 papers in the same direction as this paper
- negative
- negative
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.