Effects of daylength and light intensity on growth of barley II. Influence of incandescent light on apical development
Material type:
ArticleLanguage: English Publication details: 1964. Chicago, IL (USA) : University of Chicago Press,ISSN: - 1058-5893
- 1537-5315 (Online)
| Item type | Current library | Collection | Call number | Status | Date due | Barcode | Item holds | |
|---|---|---|---|---|---|---|---|---|
| Article | CIMMYT Knowledge Center: John Woolston Library | Reprints Collection | REP-1266 (Browse shelf(Opens below)) | Available |
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Supplementing a fluorescent light source with incandescent light accelerated apical growth and floral differentiation of barley (cv. Prior) in a long photoperiod but had no effect in a short photoperiod. In the long photoperiod the rate of apical development was linearly related to log incandescent light intensity over a wide range, but varying the intensity of the fluorescent source had only a minor effect on apical growth. The effect of incandescent light on floral initiation was evident before any internode elongation had occurred, although elongation was subsequently accelerated. These effects of incandescent light indicate a requirement for far-red (730 mμ) in the light source for an optimal photoperiodic response.
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