Pinthus, M J and Nerson, H (1984) Effect of Photoperiod at Different Growth Stages on the Initiation of Spikelet Primordia in Wheat. Australian Journal of Plant Physiology, 11. pp. 17-22.
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Abstract
Leaf and spikelet initiation of wheat (Tntlcum aestivum L.) was studied on plants grown in cabinets under a range of constant photoperiod regimes and on plants transferred, at different growth stages, between these regimes. The existence of genotypically specific limits to the effects of short photoperiods on the delay in floral initiation and on the increase m the number of spikelets was demonstrated. A long photoperiod applied after the onset of apex elongation, but not earlier, induced the differentiatlOn of spikelets in the axlls of already existing primordia, which under a short photopenod would have developed into leaves. The initiation of the terminal spikelet was induced by a long photoperiod applied not later than the double ndge stage. The final number of spikelets had been determined by the time of swelling of the spikelet primordia in the central portion of the spike.
| Item Type: | Article |
|---|---|
| Author Affiliation: | AThe Hebrew University of Jerusalem, Faculty of Agriculture (Israel) |
| Subjects: | Crop Improvement |
| Divisions: | Other Crops |
| Depositing User: | Mr Siva Shankar |
| Date Deposited: | 05 Mar 2012 09:28 |
| Last Modified: | 06 Mar 2012 06:55 |
| URI: | http://eprints.icrisat.ac.in/id/eprint/3512 |
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