Naidu, G K and Pattanashetti, S K and Kumar, O and Sridevi, O and Patil, B C (2021) Differential response of groundnut genotypes for iron (Fe) deficiency chlorosis tolerance and productivity traits under Fe-supplemented and Fe-non-supplemented conditions. Indian Journal of Genetics and Plant Breeding (TSI), 81 (01). pp. 74-86. ISSN 0019-5200
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Abstract
Groundnut is sensitive to Fe deficiency under alkaline and calcareous soils and exhibits iron deficiency chlorosis (IDC) causing significant reduction in growth and yield. Genotypes were assessed for IDC related traits such as visual chlorosis rating, SPAD chlorophyll meter reading, chlorophyll and active iron (Fe2+) content across five growth stages and also for productivity traits viz., plant height, number of primary branches, number of pods per plant, pod yield, shelling per cent, 100 seed weight and haulm yield. Comparison between Fe-supplemented and Fe-nonsupplemented condition for IDC related traits showed not much difference among IDC tolerant genotypes across all five growth stages, while significant differences among IDC susceptible genotypes were observed. Maximum reduction in pod yield was observed among IDC susceptible genotypes compared to IDC tolerant and moderately tolerant genotypes. However, recently released variety G 2- 52 with moderate tolerance to IDC and higher yield potential recorded higher pod yield both under Fe applied (1754 kgha–1) and non-applied conditions (1544 kgha–1).
| Item Type: | Article |
|---|---|
| Divisions: | Genebank |
| CRP: | UNSPECIFIED |
| Uncontrolled Keywords: | Groundnut, iron deficiency chlorosis, productivity, tolerance |
| Subjects: | Others > Crop Yield Mandate crops > Groundnut |
| Depositing User: | Mr Nagaraju T |
| Date Deposited: | 10 Jul 2024 06:11 |
| Last Modified: | 10 Jul 2024 06:11 |
| URI: | http://oar.icrisat.org/id/eprint/12758 |
| Official URL: | https://www.isgpb.org/journal/index.php/IJGPB/arti... |
| Projects: | UNSPECIFIED |
| Funders: | UNSPECIFIED |
| Acknowledgement: | The authors express sincere thanks to Directorate of Research, University of Agricultural Sciences, Dharwad for providing the financial support in the form of staff research project to carry out this research. |
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