Growing Pelargonium peltatum and Pelargonium x hortum from cuttings
2012
Parađiković Nada | Tkalec Monika | Mustapić-Karlić Jadranka | Križan Ivana | Vinković Tomislav
Pelargoniums are plants from the family Geraniaceae, and one of the most popular summer flowering species that adorn balconies and windows of the houses and are present on the market since the 18th century. In Croatia, the most commonly grown are ivy-geraniums (P. peltatum) and zonal (P. zonale) geraniums. They reproduce vegetatively because propagating by seeds is expensive and only large horticultural companies can afford it. Every year new cultivars are produced, but geraniums still have a very simple genotype and are grown very successfully, adhering to a few basic rules for their cultivation. The aim of this study with the species Pelargonium peltatum and Pelargonium x hortorum was to assess the effects of the use of hormones to stimulate root growth when planting cuttings to obtain plants and to monitor the development of cuttings. The cuttings of two different types of pelargonium were treated with Rhizopon hormone to stimulate growth and rooting. Results showed that hormone therapy has no significant effect on growth of these geranium species. Differences between treated and control seedlings were very small, hormone-treated cuttings had faster growth of their roots, although at all stages of measuring the length of P. Peltatum cuttings was significantly higher compared to the P. x hortorum cuttings (p=0.01).
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