(Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2011) Janicka, Dorota; Dobrowolska, Agnieszka; Katedra Ogrodnictwa, Zachodniopomorski Uniwersytet Technologiczny w Szczecinie; Katedra Ogrodnictwa, Zachodniopomorski Uniwersytet Technologiczny w Szczecinie
The aim of the study conducted in the years 2008–2009 was assessment of the effect
of growing media on rooting of apical and leaf-bud cuttings of hairy columnea (Columnea hirta).
Medium components included sphagnum peat, perlite and zeolite in the following variants:
1. deacidified sphagnum peat, 2. zeolite, 3. peat with zeolite 3:1 v/v, 4. peat with zeolite 1:1 v/v,
5. peat with zeolite 1:3 v/v, 6. perlite, 7. peat with perlite 3:1 v/v, 8. peat with perlite 1:1 v/v,
9. peat with perlite 1:3 v/v. After 6 weeks of rooting, the number of developed roots and their
length, the number of roots longer than 3 cm, and also the number of offshoots developed by
cuttings. Apical cuttings developed larger and more complicated root system than leaf-bud
cuttings. The plants that were rooted in media with the addition of zeolite or perlite (25–50%)
produced many roots. The number of long roots were the biggest in the medium peat + zeolite
3:1 v/v.