Effect of substrates and enhancers on the rooting of some rose varieties of the tea group under greenhouse conditions

Abstract

A rose assortment changes so much in time that, until something is published about it in a book, other new rose varieties are on the market. It is estimated that 150 million roses are cultivated each year in the world - both as cut flowers and as flowering plants for the decoration of green areas. They can be planted on slots along the road, in round and irregular flowerbeds (short roses), isolated or in groups, supported by fences, planted in pots or in flowerdisplays. The rose has always been the badge of many countries. East Mediteranean Sea and subtropical areas of East Asia are the place of origin of roses. The research was carried out at the Didactic Station in Timisoara in the conditions of a modern greenhouse of the Gothic 800 type and aimed at studying the rooting rate of rose cuttings in five rose varieties of the Tea group on different substrates. Multiplication through cuttings is among the first methods used to multiply roses and its advantage is that the plants obtained this way maintain all the features of the mother-plant and do not produce runners that require supplementary removal work.