Hamilton, R.I. and Balasubramanian, M. and Narayana Reddy, M. and Hanumantha Rao, C (1982) Compensation in grain yield components in a panicle of rainfed sorghum. Annals of applied Biology, 101. pp. 119-125.
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Abstract
In a field experiment with rainfed grown sorghum hybrid CSH-6, various proportions of spikelets from the apex, base or random regions of the panicles were removed at the time of anthesis and the yield compensation in grain number and grain size within a panicle was investigated. The distribution of grain number and grain yield in a control panicle from apex to base was parabolic while grain size showed a progressive linear decrease. Full grain yield compensation occurred due to an increase in grain number and size when the panicles lost up to 20% of their portions at the base or at random. No grain number compensation was, however, recorded at the apical region. Irrespective of the number of spikelets retained, the size of grains in the upper part of the panicle was always larger than those in the lower part. The grain number compensation, which occurred when spikelets were removed at the time of anthesis and the decreasing grain size from apex to base of the panicle would suggest hormonal involvement in the determination of potential grain number and size.
| Item Type: | Article |
|---|---|
| Author Affiliation: | All India coordinated Research Project of Dryland Agricultur, Hyderabad 500659, India |
| Subjects: | Crop Improvement |
| Divisions: | Sorghum |
| Depositing User: | Library ICRISAT-InfoSAT |
| Date Deposited: | 23 Mar 2012 08:19 |
| Last Modified: | 23 Mar 2012 08:19 |
| Official URL: | http://dx.doi.org/10.1111/j.1744-7348.1982.tb00807... |
| URI: | http://eprints.icrisat.ac.in/id/eprint/4089 |
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