Factors influencing the production of hardened glaucous carnation plantlets in vitro

Meira Ziv*, G. Meir, A. H. Halevy

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

111 Scopus citations

Abstract

Medium type, its water status and the relative humidity in the culture vessel modified carnation leaf development in vitro. Carnation shoot apices cultured on liquid or on 0.8% agar solidified media developed into plantlets having succulent and translucent leaves which are not transplantable to non-aseptic conditions. Increasing the agar and/or sucrose concentration in the medium as well as decreasing the relative humidity in the culture vessel by a desiccant promoted glaucous leaf production. Increased water status (ψH2O and relative humidity) increased shoot proliferation and translucency of leaves. Decreased water status reduced shoot proliferation but induced the formation of glaucous leaves. The culture of apices for 5-6 days on liquid medium prior to their sub-culture to 1.5% agar medium improved shoot proliferation and normal leaf development. An agar slant prevented the submergence of apices in water accumulating on the medium and thus reduced leaf translucency. Survival was further increased by the transfer of plantlets in uncapped culture vessels to a desiccator for 1-2 weeks prior to transplanting to soil.

Original languageEnglish
Pages (from-to)55-65
Number of pages11
JournalPlant Cell, Tissue and Organ Culture
Volume2
Issue number1
DOIs
StatePublished - Mar 1982

Keywords

  • desiccant
  • Dianthus caryophyllus
  • in vitro hardening
  • water potential

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