Abstract
The research was carried out to evaluate the best seed, physiological and yield parameters containing land races of rice to incorporate in the crossing programme for the advancement of yield. Seventy-five land races of rice were collected from different regions of Tiruvannamalai district. The important variable in phenotypic seed parameters viz., seed length, seed breadth, general colour, aleuronic layer colour, 1000 seed weight, surface of the grain were documented . The physiological trait like Leaf Area Index (LAI) and yield parameters viz., plant height (cm), no. of tillers per plant and duration were recorded. The distinct variation was observed in many land races based on scoring method. Out of seventy five rice land races, the maximum of 37 land races showed the straw yellow colour seed coat. The aleuronic Layer colour was white for 37 nos. of land races. Thirteen rice land races showed the high level of leaf area index and plant height. In case of yield parameters, 8 rice land races shown more than 20 no. of tillers per plant and 69 land races registered longer duration of more than 120 days. Hence, the phenotypic variations were higher in seed morphological, physiological and yield parameters due to its collection from different with varied genotypic nature. So, the phenotypically diversified land races can be utilised for developing high yielding varieties, climate resilient purpose and nutritive value.
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Claims 7
Claim · model-written summary
Of the seventy-five rice landraces, 37 had straw yellow seed coat.
- Taxon
- rice
Oryza sativae0 - Material
- land racese1
- Outcome
- straw yellow colour seed coate1
- Value
- 37e1
- Setting
- Tiruvannamalai districte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seventy-five land races of rice were collected from different regions of Tiruvannamalai district”
e1“Out of seventy five rice land races, the maximum of 37 land races showed the straw yellow colour seed coat”
Claim · model-written summary
Of the landraces, 37 had a white aleurone layer.
- Taxon
- riceOryza sativae0
- Material
- land racese2
- Outcome
- aleuronic Layer coloure2
- Value
- 37 nos.e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seventy-five land races of rice were collected from different regions of Tiruvannamalai district”
e2“The aleuronic Layer colour was white for 37 nos. of land races”
Claim · model-written summary
Thirteen landraces showed a high level of leaf area index and plant height.
- Taxon
- riceOryza sativae0
- Material
- rice land racese3
- Outcome
- leaf area index and plant heighte3
- Direction
- high levele3
- Value
- Thirteene3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seventy-five land races of rice were collected from different regions of Tiruvannamalai district”
e3“Thirteen rice land races showed the high level of leaf area index and plant height”
Claim · model-written summary
Eight landraces had more than 20 tillers per plant.
- Taxon
- riceOryza sativae0
- Material
- rice land racese4
- Outcome
- no. of tillers per plante4
- Value
- more than 20e4
- Qualifier
- 8 rice land racese4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seventy-five land races of rice were collected from different regions of Tiruvannamalai district”
e4“8 rice land races shown more than 20 no. of tillers per plant and 69 land races registered longer duration of more than 120 days”
Claim · model-written summary
Sixty-nine landraces had a duration of more than 120 days.
- Taxon
- riceOryza sativae0
- Material
- land racese4
- Outcome
- duratione4
- Value
- more than 120 dayse4
- Qualifier
- 69 land racese4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seventy-five land races of rice were collected from different regions of Tiruvannamalai district”
e4“8 rice land races shown more than 20 no. of tillers per plant and 69 land races registered longer duration of more than 120 days”
Claim · model-written summary
Phenotypic variation was higher in seed morphological, physiological and yield parameters among the landraces.
- Taxon
- riceOryza sativae0
- Material
- land racese6
- Outcome
- phenotypic variationse5
- Direction
- highere5
- Qualifier
- due to its collection from different with varied genotypic naturee5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seventy-five land races of rice were collected from different regions of Tiruvannamalai district”
e5“the phenotypic variations were higher in seed morphological, physiological and yield parameters due to its collection from different with varied genotypic nature”
e6“the phenotypically diversified land races can be utilised for developing high yielding varieties”
Claim · model-written summary
Diversified rice landraces can be used to develop high-yielding varieties.
- Taxon
- riceOryza sativae0
- Outcome
- developing high yielding varietiese6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seventy-five land races of rice were collected from different regions of Tiruvannamalai district”
e6“the phenotypically diversified land races can be utilised for developing high yielding varieties”