Prasad, P.V.V. and Craufurd, P.Q. and Summerfield, R.J. (1999) Fruit Number in Relation to Pollen Production and Viability in Groundnut Exposed to Short Episodes of Heat Stress. Annals of Botany, 84 (3). pp. 381-386.
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Abstract
Groundnuts cv. ICGV 86015 were grown at day/night temperatures of 28/22°C from sowing until 9 days after flowering. Cohorts of plants were then exposed to a factorial combination of 4 day temperatures of 28, 34, 42 or 48°C and 2 night temperatures of 22 or 28°C for 6 days. Plants were maintained at 28/22°C for 9 days after the treatments. There were strong negative relationships between day temperatures over the range 28-48°C for number of flowers/plant, pod set and pollen production and viability. Warm night temperatures did not affect number of flowers/plant but decreased pod set and pollen production. There were no interactions between day and night temperatures. Reduced pod set was a consequence of fewer pollen grains and reduced pollen viability. The threshold day temperature for pollen production and viability was 34°C.
| Item Type: | Article |
|---|---|
| Additional Information: | Dr S N Nigam research collection - Box No: 02. |
| Uncontrolled Keywords: | Arachis hypogaea L., fruit-set, groundnut, heat-stress, peanut, pollen viability, pollen production, temperature. |
| Author Affiliation: | Plant Environment Laboratory, Department of Agriculture, The University of Reading, Cutbush Lane, Shinfield, Reading RG2 9AD, UK. |
| Subjects: | Plant Production Crop Improvement |
| Divisions: | Groundnut |
| Depositing User: | Mr Balakrishna Garadasu |
| Date Deposited: | 28 Mar 2013 14:07 |
| Last Modified: | 28 Mar 2013 14:08 |
| Official URL: | http://dx.doi.org/10.1006/anbo.1999.0926 |
| URI: | http://eprints.icrisat.ac.in/id/eprint/9947 |
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