Abstract
Effect of organic adjuvants, synthetic plant hormones and diverse carbon sources in influencing anther culture response in five indica rice genotypes (IR 72, Mansarovar, Tarori Basmati, Pusa Basmati and Karnal local 95) were assessed. Androgenic callus induction as well as green plantlet regeneration was more when callus was induced on N6 fortified with 100 mg L-1 YE. However, coconut water (5 and 10% concentrations from Pink Dwarf variety) encouraged green plantlet regeneration only in Karnal local 95. High callus induction was observed with synthetic hormones in comparison to the control set. However, green plantlet regeneration was observed when callus induction medium (CIM) was supplemented with 2, 4-D and IBA in Tarori Basmati and Karnal local 95. Among the varieties Pusa Basmati and Karnal local 95 showed better callus inductions on N6 supplemented with 6% maltose. Maximum callus induction was observed in Pusa Basmati and Karnal local 95 when 6% sucrose or maltose were used as carbon source. Total plantlet regeneration was cent percent in Tarori Basmati when CIM was supplemented with maltose (6%). Maximum green plants were obtained when CIM was added with maltose (6%) for Karnal local 95. Plantlet regeneration in the present study was found to be very low. Androgenic plantlets derived from the scented indica rice, Karnal local 95, were evaluated under field condition to assess variability among segregating A2 generation. Overall mean values in respect of some major agronomic characters plant height, panicle length, number of filled grains per panicle, spikelet sterility (%) and grain yield per plant were reduced except number of panicles per plant. High CV was observed for filled grains per panicle, grains yield per plant and number of panicles per plant suggesting the existence of high variation among the androclones for those characters. Positive selection deems to be improvising those characters. The frequency distribution for number of panicles per plant and panicle length varied largely among the androclones in both direction of the parental mean. Whereas, all the androclones were found to be shorter than the parent and low yielder too. This study elucidates that the genetic modulation through exploitation of androclonal variation is a feasible proposition in scented indica rice.
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Claims 16
Claim · model-written summary
In indica rice anther culture, callus induced on N6 fortified with 100 mg L-1 yeast extract gave more androgenic callus induction and green plantlet regeneration.
- Taxon
- indica rice
Oryza sativa Indica Groupt0 - Treatment
- N6 fortified with 100 mg L-1 YEe1
- Outcome
- Androgenic callus induction as well as green plantlet regeneratione1
- Direction
- moree1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“indica rice”
e1“Androgenic callus induction as well as green plantlet regeneration was more when callus was induced on N6 fortified with 100 mg L-1 YE”
Claim · model-written summary
Coconut water at 5 and 10% (from Pink Dwarf variety) encouraged green plantlet regeneration only in Karnal local 95.
- Taxon
- indica riceOryza sativa Indica Groupt0
- Material
- Karnal local 95e1
- Treatment
- coconut water (5 and 10% concentrations from Pink Dwarf variety)e1
- Outcome
- green plantlet regeneratione1
- Direction
- encouragede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“indica rice”
e1“coconut water (5 and 10% concentrations from Pink Dwarf variety) encouraged green plantlet regeneration only in Karnal local 95”
Claim · model-written summary
Synthetic hormones gave high callus induction compared with the control set in rice anther culture.
- Taxon
- indica riceOryza sativa Indica Groupt0
- Treatment
- synthetic hormonese1
- Outcome
- callus inductione1
- Direction
- Highe1
- Comparator
- the control sete1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“indica rice”
e1“High callus induction was observed with synthetic hormones in comparison to the control set”
Claim · model-written summary
Green plantlet regeneration was observed when callus induction medium was supplemented with 2,4-D and IBA in Tarori Basmati and Karnal local 95.
- Taxon
- indica riceOryza sativa Indica Groupt0
- Material
- Tarori Basmati and Karnal local 95e1
- Treatment
- 2, 4-D and IBAe1
- Outcome
- green plantlet regeneration was observede1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“indica rice”
e1“green plantlet regeneration was observed when callus induction medium (CIM) was supplemented with 2, 4-D and IBA in Tarori Basmati and Karnal local 95”
Claim · model-written summary
Pusa Basmati and Karnal local 95 showed better callus induction on N6 supplemented with 6% maltose.
- Taxon
- indica riceOryza sativa Indica Groupt0
- Material
- Pusa Basmati and Karnal local 95e1
- Treatment
- N6 supplemented with 6% maltosee1
- Outcome
- callus inductionse1
- Direction
- bettere1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“indica rice”
e1“Among the varieties Pusa Basmati and Karnal local 95 showed better callus inductions on N6 supplemented with 6% maltose”
Claim · model-written summary
Maximum callus induction occurred in Pusa Basmati and Karnal local 95 when 6% sucrose or maltose was the carbon source.
- Taxon
- indica riceOryza sativa Indica Groupt0
- Material
- Pusa Basmati and Karnal local 95e1
- Treatment
- 6% sucrose or maltosee1
- Outcome
- callus inductione1
- Direction
- Maximume1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“indica rice”
e1“Maximum callus induction was observed in Pusa Basmati and Karnal local 95 when 6% sucrose or maltose were used as carbon source”
Claim · model-written summary
Total plantlet regeneration was cent percent in Tarori Basmati when callus induction medium was supplemented with 6% maltose.
- Taxon
- indica riceOryza sativa Indica Groupt0
- Material
- Tarori Basmatie1
- Treatment
- maltose (6%)e1
- Outcome
- Total plantlet regeneratione1
- Value
- cent percente1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“indica rice”
e1“Total plantlet regeneration was cent percent in Tarori Basmati when CIM was supplemented with maltose (6%)”
Claim · model-written summary
The maximum number of green plants was obtained for Karnal local 95 when callus induction medium contained 6% maltose.
- Taxon
- indica riceOryza sativa Indica Groupt0
- Material
- Karnal local 95e1
- Treatment
- maltose (6%)e1
- Outcome
- Maximum green plantse1
- Direction
- Maximume1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“indica rice”
e1“Maximum green plants were obtained when CIM was added with maltose (6%) for Karnal local 95”
Claim · model-written summary
Plantlet regeneration from anther culture in this study was very low.
- Taxon
- indica riceOryza sativa Indica Groupt0
- Outcome
- Plantlet regeneratione1
- Direction
- very lowe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“indica rice”
e1“Plantlet regeneration in the present study was found to be very low”
Claim · model-written summary
In androclones of scented indica rice, overall mean plant height and panicle length were reduced.
- Taxon
- indica riceOryza sativa Indica Groupt0
- Outcome
- plant height, panicle lengthe1
- Direction
- reducede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“indica rice”
e1“Overall mean values in respect of some major agronomic characters plant height, panicle length, number of filled grains per panicle, spikelet sterility (%) and grain yield per plant were reduced except number of panicles per plant”
Claim · model-written summary
In androclones of scented indica rice, overall mean number of filled grains per panicle, spikelet sterility and grain yield per plant were reduced.
- Taxon
- indica riceOryza sativa Indica Groupt0
- Outcome
- number of filled grains per panicle, spikelet sterility (%) and grain yield per plante1
- Direction
- reducede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“indica rice”
e1“Overall mean values in respect of some major agronomic characters plant height, panicle length, number of filled grains per panicle, spikelet sterility (%) and grain yield per plant were reduced except number of panicles per plant”
Claim · model-written summary
Overall mean number of panicles per plant was not reduced in the androclones.
- Taxon
- indica riceOryza sativa Indica Groupt0
- Outcome
- number of panicles per plante1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“indica rice”
e1“Overall mean values in respect of some major agronomic characters plant height, panicle length, number of filled grains per panicle, spikelet sterility (%) and grain yield per plant were reduced except number of panicles per plant”
Claim · model-written summary
High coefficients of variation for filled grains per panicle, grain yield per plant and number of panicles per plant indicated high variation among the androclones.
- Taxon
- indica riceOryza sativa Indica Groupt0
- Outcome
- High CVe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“indica rice”
e1“High CV was observed for filled grains per panicle, grains yield per plant and number of panicles per plant suggesting the existence of high variation among the androclones for those characters”
Claim · model-written summary
The frequency distributions of number of panicles per plant and panicle length varied largely among the androclones, in both directions from the parental mean.
- Taxon
- indica riceOryza sativa Indica Groupt0
- Outcome
- frequency distribution for number of panicles per plant and panicle lengthe1
- Direction
- varied largelye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“indica rice”
e1“The frequency distribution for number of panicles per plant and panicle length varied largely among the androclones in both direction of the parental mean”
Claim · model-written summary
All the androclones were shorter than the parent and also low yielding.
- Taxon
- indica riceOryza sativa Indica Groupt0
- Outcome
- shorter than the parent and low yieldere1
- Comparator
- the parente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“indica rice”
e1“all the androclones were found to be shorter than the parent and low yielder too”
Claim · model-written summary
The authors conclude that genetic modulation through exploiting androclonal variation is feasible in scented indica rice.
Verbatim
e1“genetic modulation through exploitation of androclonal variation is a feasible proposition in scented indica rice”
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