Padhan, B K and Sathee, L and Kumar, S and Senapati, M and Chinnusamy, V and Krishnan, S G and Kumar, D and Gupta, N C and Kumar, A (2023) Nitrogen dose dependant changes in grain morphology parameters are correlated with grain protein and yield traits in field-grown diverse rice genotypes. Plant Physiology Reports, 28. pp. 490-499. ISSN 2662-2548
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Nitrogen (N) deficiency alters grain morphology and reduces yield and quality rice (Oryza sativa L.). This study investigates the impact of nitrogen (N) deficiency on grain morphology, yield, and quality in 30 diverse rice genotypes. The genotypes were grown under field conditions during the 2019 and 2020-kharif seasons, subjected to two N regimes: N deficient (N0) and N sufficient (N120). Nitrogen deficiency resulted in reduced grain weight and protein content. Variations in grain morphology-related traits were observed among rice genotypes under different N applications, and these changes were correlated with yield. Certain genotypes, like APO, Nerica-L-42, and Kalinga-1, exhibited better performance under N0, indicating their tolerance to low N environments. Additionally, specific genotypes showed higher grain protein content under both N0 and N120 treatments. The study highlights the relationship between grain N content, grain morphology, and yield traits in rice under varying N conditions.
| Item Type: | Article |
|---|---|
| Divisions: | Others |
| CRP: | UNSPECIFIED |
| Uncontrolled Keywords: | Rice (Oryza sativa L.), N deficient (N0), N sufficient (N120), NUE, Grain morphology |
| Subjects: | Others > Rice |
| Depositing User: | Mr Nagaraju T |
| Date Deposited: | 15 Feb 2024 04:50 |
| Last Modified: | 15 Feb 2024 04:50 |
| URI: | http://oar.icrisat.org/id/eprint/12477 |
| Official URL: | https://link.springer.com/article/10.1007/s40502-0... |
| Projects: | UNSPECIFIED |
| Funders: | UNSPECIFIED |
| Acknowledgement: | The authors thank the ICAR-Indian Agricultural Research Institute for funding and the necessary facilities. BK acknowledges ICAR-IARI for the fellowship support received during the study. |
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