Abstract
Three does each of gamma rays (200, 400 and 600Gy), ethyl methane sulphonate (0.2, 0.4 and 0.6%), nitrosoguanidine (0.005, 0.010, and 0.015%), maleic hydrazide (0.01, 0.02 and 0.03%) and in combination were administered to the seeds of two greengram varieties, Sujata and OBGG-52. In M2 generation, population mean got decrease with increase in variance for all the four traits studied and the magnitude of such changes varied with mutagens, their doses and the variety. Higher the dose of treatment greater the shift in mean and variance. The negative shift of mean was more pronounced in MH and its combined treatments in both the varieties. The M2 populations showed wider range of variations than the parent varieties. Genetic advance estimates showed that selection in many M2 treatment populations would be effective in bringing the improvement in yield/plant. Following selection among M2 plants and in M3 progenies on the basis of higher yield, ten mutant cultures in Sujata and eleven mutants in OBGG-52 were found significantly higher yield in M4 generations. Majority of them were from the groups of M2 mutagenic treatments sowing significantly higher population variance for yield/plants. Thus, selection of high yielding M2 plants in mutagenic treatments with significantly increased M2 variance for yield would be effective in isolation of high yielding micro mutant lines.
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Claims 11
Claim · model-written summary
Mutagen treatments decreased the population mean of greengram M2 populations for all four traits studied.
- Taxon
- greengram
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Vigna radiata var. radiatae0 - Treatment
- mutagense2
- Outcome
- population meane1
- Direction
- decreasee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Three does each of gamma rays (200, 400 and 600Gy), ethyl methane sulphonate (0.2, 0.4 and 0.6%), nitrosoguanidine (0.005, 0.010, and 0.015%), maleic hydrazide (0.01, 0.02 and 0.03%) and in combination were administered to the seeds of two greengram varieties, Sujata and OBGG-52”
e1“In M2 generation, population mean got decrease with increase in variance for all the four traits studied”
e2“the magnitude of such changes varied with mutagens, their doses and the variety”
Claim · model-written summary
Mutagen treatments increased the population variance of greengram M2 populations for all four traits studied.
- Taxon
- greengramVigna radiata var. radiatae0
- Treatment
- mutagense2
- Outcome
- variancee1
- Direction
- increasee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Three does each of gamma rays (200, 400 and 600Gy), ethyl methane sulphonate (0.2, 0.4 and 0.6%), nitrosoguanidine (0.005, 0.010, and 0.015%), maleic hydrazide (0.01, 0.02 and 0.03%) and in combination were administered to the seeds of two greengram varieties, Sujata and OBGG-52”
e1“In M2 generation, population mean got decrease with increase in variance for all the four traits studied”
e2“the magnitude of such changes varied with mutagens, their doses and the variety”
Claim · model-written summary
The negative shift of mean was more pronounced under MH and its combined treatments than under the other treatments in both greengram varieties.
- Taxon
- greengramVigna radiata var. radiatae0
- Treatment
- MH and its combined treatmentse3
- Outcome
- negative shift of meane3
- Direction
- more pronouncede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Three does each of gamma rays (200, 400 and 600Gy), ethyl methane sulphonate (0.2, 0.4 and 0.6%), nitrosoguanidine (0.005, 0.010, and 0.015%), maleic hydrazide (0.01, 0.02 and 0.03%) and in combination were administered to the seeds of two greengram varieties, Sujata and OBGG-52”
e3“The negative shift of mean was more pronounced in MH and its combined treatments in both the varieties”
Claim · model-written summary
The M2 populations of greengram showed a wider range of variation than the parent varieties.
- Taxon
- greengramVigna radiata var. radiatae0
- Outcome
- range of variationse4
- Direction
- widere4
- Comparator
- parent varietiese4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Three does each of gamma rays (200, 400 and 600Gy), ethyl methane sulphonate (0.2, 0.4 and 0.6%), nitrosoguanidine (0.005, 0.010, and 0.015%), maleic hydrazide (0.01, 0.02 and 0.03%) and in combination were administered to the seeds of two greengram varieties, Sujata and OBGG-52”
e4“The M2 populations showed wider range of variations than the parent varieties”
Claim · model-written summary
Genetic advance estimates indicate that selection in many greengram M2 treatment populations would be effective for improving yield per plant.
- Taxon
- greengramVigna radiata var. radiatae0
- Treatment
- selection in many M2 treatment populationse5
- Outcome
- improvement in yield/plante5
- Qualifier
- would be effectivee5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Three does each of gamma rays (200, 400 and 600Gy), ethyl methane sulphonate (0.2, 0.4 and 0.6%), nitrosoguanidine (0.005, 0.010, and 0.015%), maleic hydrazide (0.01, 0.02 and 0.03%) and in combination were administered to the seeds of two greengram varieties, Sujata and OBGG-52”
e5“Genetic advance estimates showed that selection in many M2 treatment populations would be effective in bringing the improvement in yield/plant”
Claim · model-written summary
Ten greengram mutant cultures in Sujata had significantly higher yield in M4 generations.
- Taxon
- greengramVigna radiata var. radiatae0
- Material
- Sujatae6
- Outcome
- yielde6
- Direction
- highere6
- Value
- ten mutant culturese6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Three does each of gamma rays (200, 400 and 600Gy), ethyl methane sulphonate (0.2, 0.4 and 0.6%), nitrosoguanidine (0.005, 0.010, and 0.015%), maleic hydrazide (0.01, 0.02 and 0.03%) and in combination were administered to the seeds of two greengram varieties, Sujata and OBGG-52”
e6“ten mutant cultures in Sujata and eleven mutants in OBGG-52 were found significantly higher yield in M4 generations”
Claim · model-written summary
Eleven greengram mutants in OBGG-52 had significantly higher yield in M4 generations.
- Taxon
- greengramVigna radiata var. radiatae0
- Material
- OBGG-52e6
- Outcome
- yielde6
- Direction
- highere6
- Value
- eleven mutantse6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Three does each of gamma rays (200, 400 and 600Gy), ethyl methane sulphonate (0.2, 0.4 and 0.6%), nitrosoguanidine (0.005, 0.010, and 0.015%), maleic hydrazide (0.01, 0.02 and 0.03%) and in combination were administered to the seeds of two greengram varieties, Sujata and OBGG-52”
e6“ten mutant cultures in Sujata and eleven mutants in OBGG-52 were found significantly higher yield in M4 generations”
Claim · model-written summary
Most high-yielding mutants came from M2 mutagenic treatments with significantly higher population variance for yield per plant.
- Taxon
- greengramVigna radiata var. radiatae0
- Treatment
- M2 mutagenic treatmentse7
- Outcome
- population variance for yield/plantse7
- Direction
- highere7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Three does each of gamma rays (200, 400 and 600Gy), ethyl methane sulphonate (0.2, 0.4 and 0.6%), nitrosoguanidine (0.005, 0.010, and 0.015%), maleic hydrazide (0.01, 0.02 and 0.03%) and in combination were administered to the seeds of two greengram varieties, Sujata and OBGG-52”
e7“Majority of them were from the groups of M2 mutagenic treatments sowing significantly higher population variance for yield/plants”
Claim · model-written summary
Selecting high-yielding M2 plants in mutagenic treatments with increased M2 variance for yield would be effective for isolating high-yielding micro mutant lines of greengram.
- Taxon
- greengramVigna radiata var. radiatae0
- Treatment
- selection of high yielding M2 plants in mutagenic treatmentse1
- Outcome
- isolation of high yielding micro mutant linese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Three does each of gamma rays (200, 400 and 600Gy), ethyl methane sulphonate (0.2, 0.4 and 0.6%), nitrosoguanidine (0.005, 0.010, and 0.015%), maleic hydrazide (0.01, 0.02 and 0.03%) and in combination were administered to the seeds of two greengram varieties, Sujata and OBGG-52”
e1“selection of high yielding M2 plants in mutagenic treatments with significantly increased M2 variance for yield would be effective in isolation of high yielding micro mutant lines”
Claim · model-written summary
A higher treatment dose produced a greater shift in mean and variance of greengram traits.
- Taxon
- greengramVigna radiata var. radiatae0
- Treatment
- dose of treatmente1
- Outcome
- shift in mean and variancee1
- Direction
- greatere1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Three does each of gamma rays (200, 400 and 600Gy), ethyl methane sulphonate (0.2, 0.4 and 0.6%), nitrosoguanidine (0.005, 0.010, and 0.015%), maleic hydrazide (0.01, 0.02 and 0.03%) and in combination were administered to the seeds of two greengram varieties, Sujata and OBGG-52”
e1“Higher the dose of treatment greater the shift in mean and variance”
Claim · model-written summary
The magnitude of trait changes in greengram M2 populations varied with mutagen, dose and variety.
- Taxon
- greengramVigna radiata var. radiatae0
- Outcome
- magnitude of such changese2
- Qualifier
- varied with mutagens, their doses and the varietye2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Three does each of gamma rays (200, 400 and 600Gy), ethyl methane sulphonate (0.2, 0.4 and 0.6%), nitrosoguanidine (0.005, 0.010, and 0.015%), maleic hydrazide (0.01, 0.02 and 0.03%) and in combination were administered to the seeds of two greengram varieties, Sujata and OBGG-52”
e2“the magnitude of such changes varied with mutagens, their doses and the variety”