Botany And Classification Of Roses

Botany And Classification Of Roses

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a rose is the famous cultivar 'Queen Elizabeth'. Unfortunately, not many scented cultivars are available in this class as yet.
There are many other types of roses, but mention may be made of the miniatures which are very popular in some parts of our country. These are dwarf plants producing numerous small, single or double flowers which are suitable for bedding, edging and potting.

Besides, there are other group of roses such as 'climbers', 'ramblers' and 'shrub' roses. The climbers, as the name suggests, are of upright habit and need support for proper growth. Climbers have both H.T. and Floribunda type of cultivars. The ramblers are suitable for covering walls, trellis and fences and do well in the high hills. As a result of much cross breeding, a new class of modern shrub roses developed which cannot be grouped in any other class. Several other types of roses, which are not very common in our country, are known as Moss Roses, Musk Roses, Cabbage Roses and Austrian Briars. The American Pillar Rose does well only in higher altitudes.

Rose Terms

Several rose terms will be used again and again in the course of this book. The most common need to be explained :
Rootstock : The modern roses are normally budded or grafted on a Rosa species (sometimes on some Rosa varieties like 'Dr. Huey'). The plant on which the rose cultivar is budded is known as rootstock. Rosa multiflora, R. indica var. odorata are examples of rootstock.

Scion : The cultivar which is budded on a rootstock is referred to as 'scion'. The rootstock-scion compatibility is important for the proper growth of the budded plant.
Bud and Eye : The term 'Bud' or 'Eye' is used for the vegetative bud, which is used for budding. This bud is found in the axil of a leaf on the stem and appears as a swollen portion.

Bud union : This is the point where a scion is budded on the rootstock. Any growth appearing above this joint is of the scion plant. Growth appearing below this joint or union is from the root stock.

Sucker : A sucker is a vegetative growth appearing from below the bud union.

This growth is from the rootstock and should be removed on appearance.
" Blind-shoot : In roses many a time a shoot may arise, which will not bear any flower bud. Such shoots are known as blind shoot. A blind shoot may appear as a result of many external factors and this is not an inherited character.
Stem : The flower bearing branch is referred to as a stem (or flower stem) and stalk.


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