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Topic: Orange trees

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	Orange
		Fortunately, budded orange trees from Europe had been imported into Florida in 1824 and budwood from these and of others later brought in from England was utilized in topworking existing sour and sweet orange seedlings.
		Mature trees that have been frozen back, or that are to be converted to more suitable cultivars, may be top-worked by cleft-grafting, crown grafting, or budding of the sprouts that arise after the tree is cut off close to the ground.
		A vinous decoction of husked orange seeds is prescribed for urinary ailments in China and the juice of fresh orange leaves or a decoction of the dried leaves may be taken as a carminative or emmenagogue or applied on sores and ulcers.
	www.hort.purdue.edu /newcrop/morton/orange.html (7762 words)

	Sour Orange
		The tree ranges in height from less than 10 ft (3 m) to 30 ft (9 m), is more erect and has a more compact crown than the sweet orange; has smooth, brown bark, green twigs, angular when young, and flexible, not very sharp, thorns from 1 in to 3 1/8 in (2.5-8 cm) long.
		The first sweet orange budwood was grafted onto sour orange trees in pioneer dooryards and, from that time on, the sour orange became more widely grown as a rootstock in all citrus-producing areas of the world than for its fruit or other features.
		Some trees in Spain are said to be over 600 years old and one tree in a tub at Versailles, which, of course, must be carefully tended, was reportedly planted in the year 1421.
	www.hort.purdue.edu /newcrop/morton/sour_orange.html (1899 words)

	Osage Orange
		The name of the tree comes from the Osage tribe, which lived near the home range of the tree, and the aroma of the fruit after it is ripe.
		Osage Orange is a cousin to the mulberry tree.
		Osage Orange trees are the backbone of most of those hedgerows and are a distinctive member of the flora of the Great Plains.
	www.gpnc.org /osage.htm (793 words)

	Oranges
		Oranges look the most appealing when they are a deep, vibrant orange colour; but, on the tree, a mature orange is usually green-skinned.
		Orange trees are beautiful the year round, and their colourful fruits make a striking contrast to the dark glossy everygreen leaves, which give off a wonderful citrus scent.
		The earliest description of the bitter orange in Europe was by a 13th century author; and the sweet orange was not mentioned until 1471 in some archives from the Italian city of Savona.
	www.innvista.com /health/foods/fruits/orange.htm (1552 words)

	Dwarfing and Freeze Hardiness Potential of Trifoliate Orange Rootstocks
		Swingle citrumelo is a hybrid of Duncan grapefruit and trifoliate orange.
		Tree stunting and rootstock bark scaling associated with citrus exocortis and citrus blight, a decline of mature trees, are perhaps the most serious diseases affecting this rootstock.
		Mandarins, oranges and grapefruit on sour orange rootstock with a FD interstock
	edis.ifas.ufl.edu /HS221 (2478 words)

	Floridata: Citrus sinensis
		The sweet orange is a compact evergreen tree 20-30 ft (6.1-9.1 m) tall with a rounded, symmetrical crown spreading 15-20 ft (4.6-6.1 m) or so.
		Freshly picked oranges are tastier than those bought in the market which usually have been "de-greened" with ethylene gas, washed with detergent, colored with orange dye, coated with wax, and stored for who-knows-how-long under refrigeration.
		Oranges are said to lower cholesterol and aid in the digestion of fatty foods.
	www.floridata.com /ref/C/citr_sin.cfm (879 words)

	Ch12
		Trees of sweet orange and of grapefruit on sour orange rootstock, the combinations most widely used in Cyprus, are tolerant of cachexia-xyloporosis.
		Trees found with tristeza-like symptoms were all stunted, with some overgrowth about the bud-union and discoloration in the cambium of the sour orange rootstock.
		Output of oranges and tangerines was estimated at 266 000 tonnes in 1960/ 61, 710000 tonnes in 1970/71, 971 000 tonnes in 1975/76 and 1 570000 tonnes in the 1980/81 season (Wolff, 1977).
	www.fao.org /docrep/u5000e/U5000E0c.htm (6403 words)

	Florida Citrus Production Trends, 2003-04 Through 2012-13 (Site not responding. Last check: 2007-11-06)
		Florida citrus tree densities are continuing to trend upward, with the average number of orange trees per acre increasing from 93 in 1986 to 132 in 2002, and the average number of grapefruit trees per acre increasing from 82 to 107 over the same period.
		Trees on sour orange rootstock are vulnerable to tristeza, and, in upcoming years, tristeza may kill most of the trees on this rootstock.
		Trees on sour orange rootstock are vulnerable to tristeza, and, in upcoming years, tristeza has the potential to kill most of the trees on this rootstock.
	www.fred.ifas.ufl.edu /citrus/pubs/trend/trend02.htm (3238 words)

	Osage Orange (Site not responding. Last check: 2007-11-06)
		Osage Orange, a tree introduced into Ohio during the 1800's, is commonly seen in rural areas where it frequents fields and fencerows.
		However, surface roots with age, heavy fruit litter (beneath female trees in autumn), and extreme thorniness (especially in youth and on its lower branches) are its landscape liabilities.
		Stems of most Osage Orange trees are thorny (upper right), and the branches arch and interlace to form a "living barbed wire tree".
	www.dnr.state.oh.us /forestry/Education/ohiotrees/osageorange.htm (715 words)

	Osage Orange (Site not responding. Last check: 2007-11-06)
		Osage-orange trees are native to an area centered on the Arkansas and Red River valleys in southern Oklahoma and northern Texas.
		The trees are easily recognized by their glossy, lance-shaped leaves and their short, stout thorns.
		Generally, the tree's circumference reaches 4 to 7 feet, although 1.5 feet is the average, and the crown spread reaches up to 60 feet (with an average of 25 feet).
	weather.nmsu.edu /AbqPlantList/large/OsageOrange.htm (490 words)

	Research Abstract: 1989-08 The Growth and Yield Effects of Ambient Air Pollution on Valencia Orange Trees
		Valencia orange trees were used, as they are grown in areas subject to air pollution and have not been studied for air pollution effects.
		Tree response to air pollutants was documented in terms of fruit yield and quality, leaf physiology and biochemistry, and leaf biomass production per tree.
		Orange yields for all treatments decreased in 1988, indicating an "off" productivity year in 1988 vs 410n'1 years in 1986 and 1987.
	www.arb.ca.gov /research/abstracts/a733-087.HTM (696 words)

	Osage Orange trees
		Osage Orange Trees: Native to the midwestern and southeastern United States, this species is also known as the hedge apple because it was planted in thicket-like hedge rows before the advent of barbed wire fences.
		The wood of osage orange was highly prized by the Osage Indians of Arkansas and Missouri for bows.
		In fact, osage orange is stronger than oak (Quercus) and as tough as hickory (Carya), and is considered by archers to be one of the finest native North American woods for bows.
	www.trees-online.com /types_of_trees/osage_orange.shtml (214 words)

	27/5/2004 -- Deadly Blight Threatening Orange Trees in Brazil
		It attacks a tree's veins and eventually causes the roots to rot, cutting off the flow of water and nutrients to the rest of the plant.
		Oranges are one of the country's biggest breadwinners, providing jobs for 400,000 people and bringing in a hefty $1.3 billion a year in exports.
		Wholesale orange juice prices are hovering at their lowest level in nearly three decades and consumption is declining because of the popularity of low-carbohydrate diets in the United States.
	www.forests.org /articles/reader.asp?linkid=32051 (1513 words)

	Orange, Tangerine, Mandarin, Satsuma, Kumquat. Citrus Fruit.
		Orange: Round thick skinned juicy edible fruit that is a reddish-yellow color when ripe.
		Oranges: There are different types of oranges: navel oranges, Valencia oranges and blood oranges are the most cultivated races.
		Tangelos: a tangelo is a crossing between a tangerine, a grapefruit and an orange.
	www.thefruitpages.com /oranges.shtml (511 words)

	Orange Trees
		Orange trees generally range in height at maturity from 22 to 30 feet.
		For the home landscaper, depending on the region, there can be a wide range of orange tree varieties from which to choose.
		For advice on the best choice of orange tree for your region and climate, consult your local tree care specialist.
	www.citrus-tree-care.com /orange-trees.html (226 words)

	Problems Growing a Calamondon orange, Citrus mitis.
		It is not to say that your Calamondon orange (Citrus mitis) doesn't have leaf curl, because leaf curl is typically a fungus which attacks peach, nectarines, and plums.
		Citrus trees like four hours of full sunshine or VERY bright a day to grow and ripen their fruit.
		Citrus trees are succeptible to plant scale, mealy bugs, and spider mites, so watch out for them, and treat them appropriately.
	www.thegardenhelper.com /calamondinorange.htm (587 words)

	Responses of Sour Orange Trees. (Site not responding. Last check: 2007-11-06)
		Except for this differential CO enrichment of the chamber air, all of the trees have been treated identically, being irrigated at periods deemed appropriate for normal growth and fertilized as per standard procedure for citrus trees.
		Our primary goal is to continue the experiment until both the ambient and CO -enriched trees achieve this ultimate equilibrium state and exhibit relatively constant growth rates for several years in a row.
		In between these two light intensities, sour orange tree leaves exposed to ambient air would tend to die over the long term, while those exposed to the extra 300 ppmv of CO would continue to grow.
	www.uswcl.ars.ag.gov /epd/co2/co2tree.htm (1438 words)

	Responses of Sour Orange Trees. (Site not responding. Last check: 2007-11-06)
		Idso, S.B., Kimball, B.A. and Allen, S.G. Net photosynthesis of sour orange trees maintained in atmospheres of ambient and elevated CO concentration.
		Idso, S.B. and Kimball, B.A. Seasonal fine-root biomass development of sour orange trees grown in atmospheres of ambient and elevated CO concentration.
		Idso, S.B. Kimball, B.A., and Hendrix, D.L. Effects of atmospheric CO enrichment on chlorophyll and nitrogen concentrations of sour orange tree leaves.
	www.uswcl.ars.ag.gov /EPD/co2/co2tree.htm (1438 words)

	In Florida, a bitter fight over cutting down orange trees \| csmonitor.com
		The trees were destroyed in an effort to protect the state's commercial citrus groves from an outbreak of bacteria called citrus canker.
		Whenever a diseased tree was located, the state cut down every citrus tree - whether diseased or not - within 260 acres of the diseased one.
		Under that program, every tree within 1,900 feet of a diseased tree is destroyed - which means the government is paying $55 for every tree in a 260-acre area of a densely planted citrus grove.
	www.csmonitor.com /2004/0219/p02s01-usju.htm (963 words)

	Variety of orange trees flourish in our neighborhoods - The Honolulu Advertiser - Hawaii's Newspaper
		The Ka'u orange is a popular Washington navel variety in the Islands.
		Orange trees should be pruned lightly every year.
		As trees begin to fruit, use fertilizers with higher potassium sources such as 10-20-20 or 10-5-20 or 6-20-20 to enhance fruit quality.
	the.honoluluadvertiser.com /article/2004/Dec/10/il/il14a.html (448 words)

	Citrus Trees For Sale (Site not responding. Last check: 2007-11-06)
		The pot is equivalent to a "1 gallon" citrus tree in capacity.
		Trees are on semi-dwarfing rootstock which is good for growing in pots or in the ground.
		Also, due to the sensitive nature of young citrus trees, we will not ship to the northern states during the winter as we want to insure that you receive the same healthy, robust tree that we ship.
	www.briteleaf.com /citrus_for_sale.htm (924 words)

	Global Orange Groves UK - The Choice For A Citrus Tree In The UK
		Other citrus tree varieties also available are Lime trees, lemon trees, clementines, satsumas, tangerine, mandarin, kumquats and grapefruit trees.
		Because of the diversity of citrus and exotic fruit tree varieties, different leaf shapes, tree shape and maturity, the choice of tree is a very personal one.
		Keep your tree outside in Summer and protect from frost in winter by placing in a conservatory or greenhouse.
	www.globalorangegroves.co.uk (344 words)

	Orange (Site not responding. Last check: 2007-11-06)
		However, if you insist on planting an orange seed, you should know that citrus seed have the unusual characteristic of producing nucellar seedlings which are vegetative (identical to the mother-tree) rather than genetic in origin.
		It is her belief that oranges with seeds are female while those without are male or neutral.
		These trees are very susceptible to stress as stress causes the fruit to drop.
	aggie-horticulture.tamu.edu /plantanswers/fruit/orange.html (593 words)

	ARS \| Publication request: Acclimation of Photosynthesis in Leaves of Sour Orange Trees Grown at Elevated Co2 for 14 ... (Site not responding. Last check: 2007-11-06)
		In the 14th year, the lowered photosynthesis enhancement was shown to be due to a decrease in the content of the primary CO2-fixing enzyme, and thus a decrease in the capacity of photosynthesis.
		Understanding how slow-growing perennial trees will be affected by future increasing levels of carbon dioxide after a period of years or decades is crucial to understanding the future impact of global climate change.
		From measurements made in the 14th year, the lowered photosynthesis enhancement was shown to be due to a decrease in the maximum rate of CO2 fixation (Vcmax), and to a lower activity and content of the primary CO2-fixing enzyme ribulose-1,5,-bisphosphate carboxylase/oxygenase (Rubisco).
	www.ars.usda.gov /research/publications/publications.htm?SEQ_NO_115=144539 (499 words)

	Orange trees in pots (Site not responding. Last check: 2007-11-06)
		The ground was strewn with shoots of the orange trees which had been cut back hard.
		When the tree was in poor health, as it was often, the dark stems were the most visible things seen against the blue sky.
		In the warmer south a little better result may be had from trees in tubs, but a few days' journey brings us to orange trees growing as freely and gracefully as willows in Tunis and Algeria and the countries round the Mediterranean.
	www.lovetoknow.com /Landscaping/orange-trees-pots.htm (268 words)

	Gardening- Orange Trees and Lemon Trees
		Oranges are extremely bitter tasting and the lemons grow tto big; the size of
		Oranges are extremely bitter tasting and the lemons grow tto big; the
		trees growing out front, and have harvested oranges and lemons off of it.
	www.gardenbanter.co.uk /showthread.php?t=482 (839 words)

	Orange Trees (Site not responding. Last check: 2007-11-06)
		Oranges flower and fruit readily and are not difficult to grow, preferring a minimum winter temperature of 40ºf/5ºc at night and a little higher by day.
		They require plenty of light, and dislike sudden changes in temperature, humidity or management in the Conservatory.
		We have the largest collection of these interesting plants in the Country and visitors will find plants from 18 inches to 10 feet tall in flower and fruit at most times of the year.
	www.readsnursery.co.uk /Orange_trees.htm (117 words)

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