ISHS Acta Horticulturae 126: Symposium on Substrates in Horticulture other than Soils In Situ
PURE PEAT VERSUS PEAT-ROCK WOOL MIXTURE AS POTTING SUBSTRATE FOR STREPTOCARPUS x HYBRIDUS |
| Author: | E. Kaukovirta |
| Abstract:
Vegetatively propagated young plants of Streptocarpus x hybridus, cvs " Helle Glocke", "Weisse Glocke", "Neptun rosa" and "Neptune blau" were potted in the middle of March in an all-peat and a peat-rock wool substrate and were grown at minimum night/day temperatures of 16/19–24°C. The plants reached marketable size after 68 days of cultivation and were kept in the same greenhouse for two more months for observation of the flowering. Slight differences were observed in the growth and flowering of the four cultivars in the two substrates during the cultivation period. However, the differences observed were not directly caused by the substrates, but were dependent on the cultivars. The plants grown in the peat-rock wool substrate produced more inflorescences after the first month of the subsequent growing period, but this difference tended to level out during the second month of the subsequent growing period. | |
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