Rost, T.L. (1975) The morphology of germination in Setaria lutescens (Gramineae): the effects of covering structures and chemical inhibitors on dormant and non-dormant florets. Annals of Botany, 39 (159). pp. 21-30.
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Abstract
The sequence of organ emergence in embryos of S. lutescens was similar to that reported for other grasses: coleorhiza, radicle, coleoptile and first leaf. The coleorhiza emerged by forcing open a hinged flap on the lemma. Coleorhiza trichomes formed soon after emergence. The radicle protruded through the abaxial surface of the coleorhiza. The coleoptile initially elongated downwards as it passed between the lemma and palea, but immediately turned upwards. The first leaf emerged by protruding through a slit-like crease on the adaxial surface of the coleoptile. Embryos excised from dormant florets germinated as well as those from non-dormant florets. Inhibitory effects on germination of the lemma, palea and caryopsis coat were demonstrated. Cycloheximide at 10-4 M did not decrease germination percentage, but rather inhibited radicle growth but not coleoptile elongation. The significance of the observations is discussed
| Item Type: | Article |
|---|---|
| Author Affiliation: | Department of Botany, California University, Davis, CA 95616, USA. |
| Subjects: | Crop Improvement Plant Physiology and Biochemistry > Plant Physiology Plant Physiology and Biochemistry > Biochemistry |
| Divisions: | General |
| Depositing User: | Mr B Krishnamurthy |
| Date Deposited: | 23 May 2012 13:25 |
| Last Modified: | 23 May 2012 13:25 |
| URI: | http://eprints.icrisat.ac.in/id/eprint/5660 |
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