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Tangors
The tangor (''C. reticulata'' × ''C. sinensis'') is a citrus fruit hybrid of the mandarin orange (''Citrus reticulata'') and the sweet orange (''Citrus sinensis''). The name "tangor" is a formation from the "tang" of tangerine and the "or" of "orange." Also called the temple orange, its thick rind is easy to peel and its bright orange pulp is sour-sweet and full-flavoured. Varieties Tangors are purposely bred or accidental hybrids of the sweet orange (''Citrus sinensis'') and the mandarin (''Citrus reticulata''), producing several varieties. * 'Clementine' ( Willowleaf × unknown sweet orange) (a commercially important cultivar) * 'King' ("King of Siam"; formerly ''Citrus nobilis'') * 'Kuchinotsu No. 37' (Kiyomi x Encore) * ' Murcott' ("honey Murcott"; "Murcott honey orange"; "red"; "big red") * 'Ortanique' (originally found in Jamaica, the name comes from the words "orange", "tangerine", and "unique"). In 1939, David Daniel Phillips was recognised by the Jamaica Agricultural ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Citrus
''Citrus'' is a genus of flowering plant, flowering trees and shrubs in the rue family, Rutaceae. Plants in the genus produce citrus fruits, including important crops such as Orange (fruit), oranges, Lemon, lemons, grapefruits, pomelos, and lime (fruit), limes. The genus ''Citrus'' is native to South Asia, East Asia, Southeast Asia, Melanesia, and Australia (continent), Australia. Various citrus species have been used and domesticated by indigenous cultures in these areas since ancient times. From there its cultivation spread into Micronesia and Polynesia by the Austronesian expansion (c. 3000–1500 BCE); and to the Middle East and the Mediterranean (c. 1200 BCE) via the incense trade route, and onwards to Europe and the Americas. History Citrus plants are native to subtropical and tropical regions of Asia, Island Southeast Asia, Near Oceania, and northeastern Australia. Domestication of citrus species involved much hybridization and introgression, leaving much uncertainty ab ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Citrus Hybrids
Citrus taxonomy refers to the botanical classification of the species, varieties, cultivars, and graft hybrids within the genus ''Citrus'' and related genera, found in cultivation and in the wild. Citrus taxonomy is complex and controversial. Cultivated citrus are derived from various citrus species found in the wild. Some are only selections of the original wild types, many others are hybrids between two or more original species, and some are backcrossed hybrids between a hybrid and one of the hybrid's parent species. Citrus plants hybridize easily between species with completely different morphologies, and similar-looking citrus fruits may have quite different ancestries. Some differ only in disease resistance. Conversely, different-looking varieties may be nearly genetically identical, and differ only by a bud mutation. Detailed genomic analysis of wild and domesticated citrus cultivars has suggested that the progenitor of modern citrus species expanded out of the Himalaya ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Citrus
''Citrus'' is a genus of flowering plant, flowering trees and shrubs in the rue family, Rutaceae. Plants in the genus produce citrus fruits, including important crops such as Orange (fruit), oranges, Lemon, lemons, grapefruits, pomelos, and lime (fruit), limes. The genus ''Citrus'' is native to South Asia, East Asia, Southeast Asia, Melanesia, and Australia (continent), Australia. Various citrus species have been used and domesticated by indigenous cultures in these areas since ancient times. From there its cultivation spread into Micronesia and Polynesia by the Austronesian expansion (c. 3000–1500 BCE); and to the Middle East and the Mediterranean (c. 1200 BCE) via the incense trade route, and onwards to Europe and the Americas. History Citrus plants are native to subtropical and tropical regions of Asia, Island Southeast Asia, Near Oceania, and northeastern Australia. Domestication of citrus species involved much hybridization and introgression, leaving much uncertainty ab ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kiyomi
(''Citrus unshiu'' × '' sinensis'') is a Japanese citrus fruit that is a hybrid of a ''Miyagawa Wase'' mikan and an orange. The new breed was the first tangor created in Japan in 1949. It was named Kiyomi after the temple and the lagoon near its experiment station in Shizuoka city and registered as "Tangor Nōrin No.1" in 1979. Kiyomi are sweet. Sugar content is normally 11–12° Bx and reaches even 13 °Bx if conditions are met. Citric acid content is around 1%. It has no seeds. The time of ripening is mid to late March. The flavor is similar to that of a ''mikan'', while the aroma is similar to that of an orange. Kiyomi is a monogerm, so it is often used as a parent citrus to create new hybrids such as dekopon is a seedless and sweet variety of satsuma orange. It is a hybrid between Kiyomi and ponkan (Nakano no.3), developed in Japan in 1972. Originally a brand name, "Dekopon" has become a genericized trademark and it is used to refer to all bran .... ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Citrus Variety Collection
The UCR Citrus Variety Collection (CVC) is one of the most important collections of citrus diversity in the world. It is used for research, plant breeding, and educational extension activities on the UC Riverside campus in Riverside, California. Holdings The collection is composed of over 1000 accessions, planted as two trees of each of various types of citrus and citrus relatives. The collection largely comprises accessions within the genus ''Citrus'', the remaining types are included among 28 other related genera in the Rutaceae subfamily Aurantiodeae. The collection consists of approximately on the UCR campus, at the South Coast Research and Extension Center in Irvine, California, and at the Coachella Valley Agricultural Research Station in Thermal, California. It includes accessions that were first introduced in the early 20th century, as well as varieties brought in over time from various curators, and newer varieties that were more recently developed by breeding or br ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wood
Wood is a porous and fibrous structural tissue found in the stems and roots of trees and other woody plants. It is an organic materiala natural composite of cellulose fibers that are strong in tension and embedded in a matrix of lignin that resists compression. Wood is sometimes defined as only the secondary xylem in the stems of trees, or it is defined more broadly to include the same type of tissue elsewhere such as in the roots of trees or shrubs. In a living tree it performs a support function, enabling woody plants to grow large or to stand up by themselves. It also conveys water and nutrients between the leaves, other growing tissues, and the roots. Wood may also refer to other plant materials with comparable properties, and to material engineered from wood, or woodchips or fiber. Wood has been used for thousands of years for fuel, as a construction material, for making tools and weapons, furniture and paper. More recently it emerged as a feedstock for the productio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sphaeropsis Tumefaciens
''Sphaeropsis tumefaciens'' is an ascomycete fungus that is a plant pathogen Plant pathology (also phytopathology) is the scientific study of diseases in plants caused by pathogens (infectious organisms) and environmental conditions (physiological factors). Organisms that cause infectious disease include fungi, oomyc ... infecting citruses. References External links Index FungorumUSDA ARS Fungal Database Fungi described in 1911 Fungal citrus diseases Ascomycota enigmatic taxa {{fungus-fruit-disease-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moth
Moths are a paraphyletic group of insects that includes all members of the order Lepidoptera that are not butterflies, with moths making up the vast majority of the order. There are thought to be approximately 160,000 species of moth, many of which have yet to be described. Most species of moth are nocturnal, but there are also crepuscular and diurnal species. Differences between butterflies and moths While the butterflies form a monophyletic group, the moths, comprising the rest of the Lepidoptera, do not. Many attempts have been made to group the superfamilies of the Lepidoptera into natural groups, most of which fail because one of the two groups is not monophyletic: Microlepidoptera and Macrolepidoptera, Heterocera and Rhopalocera, Jugatae and Frenatae, Monotrysia and Ditrysia.Scoble, MJ 1995. The Lepidoptera: Form, function and diversity. Oxford, UK: Oxford University Press; 404 p. Although the rules for distinguishing moths from butterflies are not well establishe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scale Insect
Scale insects are small insects of the order Hemiptera, suborder Sternorrhyncha. Of dramatically variable appearance and extreme sexual dimorphism, they comprise the infraorder Coccomorpha which is considered a more convenient grouping than the superfamily Coccoidea due to taxonomic uncertainties. Adult females typically have soft bodies and no limbs, and are concealed underneath domed scales, extruding quantities of wax for protection. Some species are hermaphroditic, with a combined ovotestis instead of separate ovaries and testes. Males, in the species where they occur, have legs and sometimes wings, and resemble small flies. Scale insects are herbivores, piercing plant tissues with their mouthparts and remaining in one place, feeding on sap. The excess fluid they imbibe is secreted as honeydew on which sooty mold tends to grow. The insects often have a mutualistic relationship with ants, which feed on the honeydew and protect them from predators. There are about 8,000 descr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phyllocoptruta Oleivora
''Phyllocoptruta oleivora'', the citrus rust mite, is a serious pest of citrus in most humid regions of the world based on incurred damage and annual cost of control. It infests twigs, leaves, and fruit of all citrus species and varieties, but its order of preferences is lemons, grapefruit, oranges, and tangerines. References Agricultural pest mites Eriophyidae {{Trombidiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rust Mite
''Aceria anthocoptes'', also known as the russet mite, rust mite, thistle mite or the Canada thistle mite, is a species of mite that belongs to the family Eriophyidae. It was first described by Alfred Nalepa in 1892. ''Aceria anthocoptes'' can be found on ''Cirsium arvense'', the Canada thistle, and is a good potential biological pest control agent of this invasive weed. Description Female specimens have a somewhat fusiform shape, and range in colour. Depending upon the stage of development, both nymphs and adults can appear white, tan, pink, or yellow.Rachel Winston, Rich Hansen, Mark Schwarzlander, Eric Coombs, Carol Bell Randall, Rodney Lym (2008)''Biology and Biological Control of Exotic True Thistles'', USDA Forest Health Technology Enterprise Team They are approximately 170 µm long and 65 µm wide, and are thus almost invisible to the naked eye. Chelicerae are about 20 µm long, and are almost straight. Distribution ''Aceria anthocoptes'' is a 'free-livi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aphis Gossypii
''Aphis gossypii'' is a tiny insect, an aphid ("greenfly") in the superfamily Aphidoidea in the order Hemiptera. It is a true bug and sucks sap from plants. It is a widely distributed pest of a variety of agricultural crops in the families Cucurbitaceae, Rutaceae and Malvaceae. Common names include cotton aphid, melon aphid and melon and cotton aphid. Distribution It is not known where this species originated, but it is now found in tropical and temperate regions throughout the world except extreme northern areas. It is common in North and South America, Central Asia, Africa, Australia, Brazil, East Indies, Mexico and Hawaii and in most of Europe. It is cosmopolitan in habitat. It thrives outdoors in southern Europe but survives only under glass in northern Europe. In the former Soviet Union it is found up to 54°N. Morphology The wingless female cotton aphid has an ovoid body about two millimetres long in varying shades of green. The legs are yellow, as are the antennae whic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
