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A double graft union of diamante citron upon sour orange rootstock. Sour orange: the only rootstock that truly is an orange (the Citrus × aurantium or bitter orange). It is vigorous and highly drought-resistant. Poncirus trifoliata: a close relative of the genus Citrus, sometimes classified as Citrus trifoliata.
Introduced new citrus varieties of grapefruit, mandarin, and sweet oranges. A new dwarf rootstock flying dragon evaluated to overcome bud union crease in musambi. To overcome bud union crease in musambi a new grafting technique i.e. double grafting i.e. use of inter stock was introduced. [5]
The trifoliate orange, Citrus trifoliata (syn. Poncirus trifoliata), is a member of the family Rutaceae. Whether the trifoliate oranges should be considered to belong to their own genus, Poncirus, or be included in the genus Citrus is debated. The species is unusual among citrus for having deciduous, compound leaves and pubescent (downy) fruit ...
The purpose of this cross was to attempt to create a cold hardy citrus tree (which is the nature of a trifoliate), with delicious fruit like those of the sweet orange. However, citranges are generally bitter. Citrange is used as a rootstock for citrus in Morocco, but does not prevent dry root rot or exocortis disease. [2]
Citrumelo is widely employed as a citrus rootstock, [1] being resistant to the severe citrus tristeza virus and to phytophthora root rot as well as to blight, cold, and citrus nematode. [2] The trees can survive temperatures into the teens ( Fahrenheit ); [ 3 ] one specimen in North Carolina reportedly survived temperatures below zero Fahrenheit.
The Rutaceae (/ r uː ˈ t eɪ s i ˌ aɪ,-s iː ˌ iː /) is a family, commonly known as the rue [3] or citrus family, [4] of flowering plants, usually placed in the order Sapindales. Species of the family generally have flowers that divide into four or five parts, usually with strong scents. They range in form and size from herbs to shrubs ...
There are several cultivars of rough lemon that can serve as a citrus rootstock, including 'Florida', [2] 'Schaub', [3] and 'Vangassay' rough lemon. [4] The process for using the rough lemon as a citrus rootstock would start with mashing up the rough lemons. The mashed up rough lemons would then be put in a furrow, which is a long trench.
Ponderosa lemon also has larger than average citrus flowers, and bears fruit throughout the year. When grown as an ornamental, it requires pruning to control the shape, and may be trained as a bush or tree. Ponderosa lemon is less cold-hardy than a true lemon. [5] It bears medium to large fruit with a thick and bumpy rind.