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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.
Viroids and graft-transmissible pathogens [GTP] Algerian navel orange virus GTP Blight = young tree decline, rough lemon decline GTP Blind pocket GTP Cachexia Citrus cachexia viroid (Hostuviroid) Chlorotic dwarf White-fly transmitted GTP Citrus dwarfing Various viroids Citrus vein enation (CVEV) = woody gall GTP (possible luteovirus)
Bizzarria of Florence (Citrus medica + C. aurantium), which is probably the first graft chimera obtained, is a graft between the Florentine citron and sour orange. It produces branches of regular Florentine citron including such leaves, and from the other side branches of sour orange.
Citrus canker is a disease affecting Citrus species caused by the bacterium Xanthomonas (X.axonopodis; X. campestris). Infection causes lesions on the leaves, stems, and fruit of citrus trees, including lime, oranges, and grapefruit. While not harmful to humans, canker significantly affects the vitality of citrus trees, causing leaves and fruit ...
In addition to propagating trees on rootstocks designed to control size/vigour and confer disease resistance, grafting above the rootstock can be used to provide multiple cultivars of a single species, known as a family tree, or, within certain limits, cultivars of different fruit species on one tree, often known as a fruit salad tree.
Citrus exocortis is a disease of citrus plants, caused by the Citrus exocortis viroid (CEVd, Pospiviroid exocortiscitri). It can cause stunted growth and reduced yields in affected plants. The disease is also sometimes called "scalybutt". [1] CEVd can also infect tomato plants. The resulting disease is sometimes called "tomato bunchy top ...
Temperature Extremes. The ideal temperature range for a prayer plant is between 60 to 80 degrees Fahrenheit, says Langelo. Any temperature that is lower or higher can cause the leaves to curl.
Open form of the large Citrus psorosis ophiovirus particle. Negative-contrast electron micrograph (uranyl acetate); bar: 100 nm. Citrus psorosis ophiovirus is a plant pathogenic virus infecting citrus plants worldwide. [2] It is considered the most serious and detrimental virus pathogen of these trees.