, Volume 123, Issue 3, pp 211–214 | Cite as

Effect of photoperiod on the growth of Azolla pinnata R. brown

  • Amarjeet Singh
  • O. N. Srivastava


Photoperiod has a profound effect on the growth of Azolla pinnata. Fresh mass, dry mass and moisture content were maximum in 12 h and minimum in 0 h (dark) photoperiod. Frond colour, root characteristics and sporocarp production were also affected under different treatments. The plants were capable of growing under continuous illumination and unnatural photoperiods.


Azolla pinnata growth photoperiod 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Ashton, P. J., 1977. Factors affecting the growth and development of Azolla filiculoides Lam. Proc. 2nd Natn. Weeds Conf. S. Africa, Stellenbosch Univ. A. A. Balkema, Cape Town, Rotterdam: 249–268.Google Scholar
  2. Daubenmire, R. F., 1959. Plants and Environment. Wiley Eastern Private Ltd., New Delhi, India, 422 pp.Google Scholar
  3. Treshow, M., 1970. Environment and Plant Response. McGraw-Hill Publishing Co. Ltd, Inc., N.Y., 422 pp.Google Scholar

Copyright information

© Dr W. Junk Publishers 1985

Authors and Affiliations

  • Amarjeet Singh
    • 1
  • O. N. Srivastava
    • 1
  1. 1.Department of BotanyRanchi UniversityRanchiIndia

Personalised recommendations