Skip to main content
SpringerLink
Log in

Hastening effect of intercalated long days on short-day induction in Impatiens balsamina, a qualitative short day plant

  • Short Communication
  • Published:
Planta Aims and scope Submit manuscript

Summary

The inductive effect of short-day (SD) cycles on floral-bud initiation in Impatiens balsamina was enhanced and the minimum requirement for SD cycles for flowering reduced by intercalated long days (LDs). Thus, floral buds developed into flowers with only 4 SD cycles in plants receiving them individually or in pairs alternating with LDs, but failed to develop in those receiving 4 SD sycles consecutively. The number of flowering plants increased while the periods to floral-bud initiation and flowering, calculated from the day of completion of 4 and 8 SD cycles, respectively, decreased with an increase in the number of intercalated LDs.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

References

  • Köhler, D.: Ein Beitrag zur Physiologie und Genetik der Geschlechtsausprägung von Cannabis sativa. Planta (Berl.) 56, 150–173 (1961).

    Google Scholar 

  • Krishnamoorthy, H. N., Nanda, K. K.: Effect of interacalated long days and light interruption of dark period on flowering, extension growth and senescence of Impatiens balsamina. Physiol. Plantarum (Cph.) 20, 760–770 (1967).

    Google Scholar 

  • —— Floral bud reversion in Impatiens balsamina under non-inductive photoperiods. Planta (Berl.) 80, 43–51 (1968).

    Google Scholar 

  • Lang, A.: Physiology of flower intiation. In: Encyclopedia of plant physiology (W. Ruhland, ed.), vol. 15, pt. 1, p. 1380–1536. Berlin-Heidelberg-New York: Springer 1965.

    Google Scholar 

  • Long, E. M.: Photoperiodic induction as influenced by environmental factors. Bot. Gaz. 101, 168–188 (1939).

    Google Scholar 

  • Nanda, K. K., Kumar, P.: Photoperiodic studies on growth and development of Impatiens balsamina L. I. Lateral bud development and its relationship with senescence. Planta (Berl.) 69, 249–257 (1966).

    Google Scholar 

  • — Krishnamoorthy, H. N.: Photoperiodic studies on growth and development of Impatiens balsamina. II. Floral bud initiation, flower opening and extension growth. Planta (Berl.) 72, 338–343 (1967).

    Google Scholar 

  • Samygin, G. A.: The effect of light intensity in photoperiods unfavourable to the development of Rudbeckia and Perilla. C. R. (Doklady) Acad. Sci. U.R.S.S. 60, 1433 (1948).

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Botany, Panjab University, Chandigarh, India

    K. L. Toky & K. K. Nanda

Authors
  1. K. L. Toky
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. K. K. Nanda
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Toky, K.L., Nanda, K.K. Hastening effect of intercalated long days on short-day induction in Impatiens balsamina, a qualitative short day plant. Planta 89, 198–202 (1969). https://doi.org/10.1007/BF00386985

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00386985

Keywords

Search

Navigation