Electronic Journal of Biotechnology ISSN: 0717-3458
  © 2005 by Universidad Católica de Valparaíso -- Chile
Vol. 8 No. 1, Issue of April 15, 2005


Figure 4. Effect of R:
(a) FR ratios on stem length;
(b) Production of new leaves; and
(c) Internode length in latitudinal ecotypes of B. pendula.
About 2 - 3-cm long plants, which had been growing in LDs, were transferred to various R/FR treatments. In each treatment, 12 hrs of PAR was extended by 12 hrs of different R/FR ratios at an irradiance of 25 µmol m-2 s-1. Each point is a mean of 16 plants. Mean ± S.E. are shown. (N - northern, I - intermediate, S – southern).

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