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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.
It is native to the Philippines, Borneo, Sumatra, and Sulawesi in Indonesia in Southeast Asia, Malaysia as well as southern China and Taiwan in East Asia. Cam sành: Citrus reticulata × maxima: Citrange: Citrus sinensis × Poncirus trifoliata: Citrumelo: × Citroncirus ssp.
Citrumelo: Citrus × paradisi × Citrus trifoliata: −15 °C (5 °F) Semi-edible 'Dunstan' is considered the most edible citrumelo Kabosu: Citrus cavaleriei × Citrus x aurantium: −12 °C (10 °F) Edible, Used in cooking Long cultivated in Japan Shuangjuan (Ichang lemon) Citrus cavaleriei × Citrus maxima: −12 °C (10 °F) Edible, Used in ...
Swingle citrumelo: tolerant of tristeza virus and Phytophthora parasitica and moderately resistant to salt and freezing. [2] This rootstock selection was hybridized from the Duncan grapefruit (Citrus paradisi Macfadyen) and the Poncirus trifoliata (L.) Raf. by Walter Tennyson Swingle in Eustis, Florida, in 1907.
A tree full of key limes in West Bengal, India. C. aurantiifolia is a shrubby tree, growing to 5 metres (16 feet), with many thorns. Dwarf varieties exist that can be grown indoors during winter months and in colder climates. Its trunk, which rarely grows straight, has many branches, and they often originate quite far down on the trunk.
Recently, the hybrid rootstock called Swingle citrumelo (Citrus paradisi x P. trifoliata) is highly resistant to the citrus nematode. [ 11 ] In California , the Statewide Integrated Pest Management Program of the University of California suggests chemical control of nematodes with application dependent on population levels of nematodes.
The bitter orange, sour orange, Seville orange, bigarade orange, or marmalade orange is the hybrid citrus tree species Citrus × aurantium, and its fruit.It is native to Southeast Asia and has been spread by humans to many parts of the world.
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.