Phytochrome and internode elongation inChenopodium polyspermumL. the light fluence rate during the day and the end-of-day effect

✍ Scribed by A. Lecharny; R. Jacques

• Book ID: 104750972
• Publisher: Springer-Verlag
• Year: 1979
• Tongue: English
• Weight: 211 KB
• Volume: 146
• Category: Article
• ISSN: 0032-0935
• DOI: 10.1007/bf00388834

✦ Synopsis

The elongation of the fourth internode of fully green Chenopodium polyspermum L. is strongly stimulated by far-red light (FR) given at the end of the day. The end-of-day effect is more important when the plants had been cultivated for several days with a main light period of 140 Wm(-2) than with a main light period of 85 Wm(-2). There exists a quantitative relationship between the FR end-of-day effect mediated by phytochrome and the value of the light fluence during the day.