ENVIRONMENTAL EFFECTS OF STOCK PLANTS ON ROOTING AND FURTHER GROWTH OF THE CUTTINGS OF CAMPANULA ISOPHYLLA MORETTI

Effects of temperature, light and CO₂ enrichment to stock plants of Campanula isophylla on number of cuttings and dry weight of the cuttings produced, and the subsequent root formation and growth of the cuttings were studied.

Increasing light intensity and carbon dioxide enrichment strongly enhanced number of cuttings, dry weight and percentage dry matter of the cuttings produced.
The root formation and root growth during the rooting period, and the growth and lateral shoot formation on rooted cuttings were markedly stimulated by these stock plant treatments.

The number of roots per cutting decreased with increasing duration of long day treatment of the stock plants.
After 6–8 weeks long day treatment the root formation was completely inhibited, and addition of au :ins (IBA) to the cutting did not counteract the inhibition of the rooting.

Symposium on Production of Potted Plants and Cut Flowers

R. Moe

https://doi.org/10.17660/ActaHortic.1976.64.9