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Topic: Cultivar Group

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Cultivar Group

In the News (Tue 17 Nov 09)

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	International Carnivous Plant Society
		Cultivar names consist of the name of the denomination class (Latin genus name) plus a cultivar epithet (in a modern language) in single quotation marks.
		The cultivar name of a plant which is a member of a cultivar-group is properly given by including the cultivar-group name in parentheses before or after the cultivar epithet.
		Furthermore, by accepting a cultivar or cultivar-group name, the Registrar is not conferring any implied judgement upon the value of the plant as a horticultural entity.
	www.carnivorousplants.org /cultivars/register.html (1119 words)

	Cultivar - Wikipedia, the free encyclopedia
		For this, it must be distinct from other cultivars and it must be possible to propagate it reliably, in the manner prescribed for that particular cultivar.
		The word cultivar is a portmanteau coined from "cultivated" and "variety" but is not interchangeable with the botanical rank of variety, nor with the legal term "plant variety".
		A cultivar is a particular variety of a plant species or hybrid that is being cultivated and/or is recognised as a cultivar under the ICNCP.
	en.wikipedia.org /wiki/Cultivar (1303 words)

	Breeder's Notes on Cultivar Selection and Adaptation
		Cultivars of Maturity Groups 00, 0 and I are suitable to the Red River Valley.
		Maturity Group I is primarily suitable for southern Richland county.
		For example, a 0.1 maturity is an early Maturity Group 0 cultivar and a 0.9 is a late Maturity Group 0 cultivar.
	www.ag.ndsu.nodak.edu /aginfo/seedstock/varieties/VN-SOYB.htm (896 words)

	Nelumbo (Site not responding. Last check: 2007-10-14)
		International Cultivar Registration Authorities (ICRAs) are appointed by the International Society for Horticultural Science (ISHS) through its Commission for Nomenclature and Registration and are contracted to operate within the provisions of the current edition of the International Code of Nomenclature for Cultivated Plants (ICNCP).
		The importance of horticultural taxonomy is in the resolution of the often complicated identification and nomenclatural problems that arise as a consequence of makeup of the contributing groups; specialist amateurs, the nursery trade and plant societies.
		Cultivars of Nelumbo are registered first "to prevent, as far as possible, names already appropriated being given to new seedlings", and secondly to prevent the use of names which so closely resemble existing names that they would cause confusion.
	www.iwgs.org /nelumbo.cfm (371 words)

	Published in HortScience 36
		Cultivars in the Lisa and Mermaid cultivar-groups, are dwarf, while cultivars in the Tiara and Florida cultivar-groups are semi-dwarf.
		The most important and distinguishing attribute of all the Florida cultivar-group cultivars as compared with other dwarf and semi-dwarf commercial lines was their heat-tolerance (Table 1).
		Florida cultivars are intended to be used as bedding plants or for flowering potted plants.
	gcrec.ifas.ufl.edu /Harbaughpubs/HarbaughFlaSilverpub.htm (1118 words)

	Taxonomic Classification (Site not responding. Last check: 2007-10-14)
		Species generally refer to interbreeding sub-group of genus or groupings of individual plants that adhere to essential identification characteristics but display sufficient variation so as not to be categorized as replicas of one another.
		Cultivar is a species sub-grouping of cultivated plants (cultivated variety) displaying unique differences and when reproduced by seeds or cuttings retain its distinguishing characteristics.
		In technical writing, the cultivar name follows the genus and species and is always capitalized and written inside single quotes but not italicized.
	www.ext.colostate.edu /pubs/garden/07701.html (1136 words)

	THE VEGETABLE SECTOR IN THAILAND
		The hybrid cultivars are both expensive as well as doubtful in their superiority as the Chinese kale has a very short growing season.
		It is one of the main leafy vegetables of the Brassica group of crops in Thailand.
		This cultivar is a native to Sisaket province.
	www.fao.org /docrep/004/ac145e/AC145E09.htm (5795 words)

	Naming a Cultivar ?
		Nothing can be used that is likely to cause confusion (eg similarity to existing cultivar names within the denomination class, place names if more than one form of the plant exists there) or which exaggerate the merits of the cultivar.
		The cultivar epithet can only be used once within a denomination class (the genus).
		7.1 The name of a cultivar or Group consists of the name of the genus or lower taxonomic unit to which it is assigned together with a cultivar or Group epithet.
	www.anbg.gov.au /acra/naming-a-cultivar.html (338 words)

	Royal Horticultural Society - RHS Plant Finder: Nomenclature Notes
		The Pearl Group covers all other double-flowered clones of this species, including seed-raised plants which are markedly inferior, sometimes scarcely double, often invasive and usually needing careful staking.
		Cultivars formally ascribed to one species or the other have been shown to be hybrids and are referable to the recently-named hybrid species
		This name, originally for a pink-flowered, green-leaved cultivar, is now generally applied to a purple-flowered, dark-leaved cultivar that seems to lack a valid name.
	www.rhs.org.uk /rhsplantfinder/nomenclaturenotes.asp (2195 words)

	CAC Growers Research
		The cross pollination efficiency depends on the distance between the pollen donor tree and the pollinated tree, on the overlapping efficiency between the former male bloom and the latter female bloom, and on the pollinator mobility and density.
		In many cases, cross pollination of a group A cultivar by a group B cultivar is more efficient than the opposite way, due to the efficient overlap between the group A female bloom and the group B male bloom, and the inefficient overlap of the opposite blooms.
		In some cultivars, such as 'Hass', 'Ettinger' and 'Reed', it was demonstrated that one pollen grain has a very low probability to fertilize the female stage flower, and twenty pollen grains or more per stigma are needed to achieve a high probability of fertilization.
	www.avocado.org /growers/pages/proceedings/p5_isham.php (2272 words)

	Rapid Analytical Tests for Predicting Oil Quality \| ARDI \| Agri-Food Research & Development Initiative \| Manitoba ...
		Canola Group 2 - For this group of cultivars no differences in the composition and the amount of tocopherols were observed between the traditional and modified cultivars.
		In addition, the content of C 18:2 in flaxseed cultivar 1 and 2 were 12.1% and 15.2%, respectively, whereas in solin cultivars contribution of this acid was from 58.5% to 70.6%.
		Solin cultivar 3 had shorter half-live times for plastochromanol-8, γ-tocopherol and the total amount of tocopherols, with values of 172, 182 and 179 hours, respectively, compared to solin cultivar 1 values of 249, 259 and 255 hours, respectively and solin cultivar 2 values of 261, 279 and 271 hours, respectively.
	www.gov.mb.ca /agriculture/research/ardi/projects/98-043.html (5047 words)

	CGC17-4
		Cultivar genetic clustering resulting from differences in trait expression can be the basis for parental selection in hybrid breeding programs.
		When genetic distances among cultivars and inbreds were larger, the nearest-neighbor method was not to be found an adequate classifier and groups were merged one by one.
		Six groups of cultivars and in breeds were analyzed further, and representative traits and common features were found (Table 1).
	cuke.hort.ncsu.edu /cgc/cgc17/cgc17-4.html (941 words)

	INTRODUCTION
		Camellia cultivars are freely distributed and interchanged throughout the Camellia growing areas of the world, so that the Register must be maintained on a truly international basis, and it is only by the continuing co-operation of all concerned that this object may be achieved.
		Rarely, if ever, is it possible to state categorically that a particular cultivar is extinct, and, in any case, once a name is published it is on record for all future time as a potential source of confusion if any other plant from the same group is allowed to assume the same epithet.
		Following the cultivar group name is the name of the author of the first valid listing, with the title of the publication, together with the date and page number, where this information is known.
	camellia-ics.org /_ics/register/intro.htm (2551 words)

	Thymus: Coccineus Group
		The Latin form of the epithet Coccineus is permissible as it is based on the pre1958 usage as a cultivar for plants that now fall within the new Group.
		There are however cultivars, either with dark crimson flowers, or with the epithet Coccineus, which should not be included in the new Group.
		This dwarf thyme should therefore be included in the new Coccineus group, but it would be permissible to give it a cultivar name within the Group if nurserymen wish to distinguish it from the other taller dark crimson thymes within the Group.
	www.users.waitrose.com /~lwplants/coccineus.htm (1281 words)

	Cultivar Corner - General Instructions For Registration Of Bromeliad Cultivars
		A CULTIVAR is an individual that has been selected from a GREX because of a particular attribute or combination of attributes.
		Thus, when a CULTIVAR is given a name and distributed, one can be assured that all plants with this name have the same characteristics and uniformity.
		Cultivars should be grown through several cycles of pupping and blooming to ensure that they are stable and reproduce consistently.
	www.bsi.org /brom_info/cultivar/instructions.html (1239 words)

	Forage Quality of Potato Leafhopper Resistant and Susceptible Alfalfa Cultivars -- Sulc et al. 96 (2): 337 -- Agronomy ...
		Differences in forage quality of potato leafhopper resistant vs. susceptible alfalfa cultivar groups for individual harvests of control (no insecticide applied) and treated (insecticide applied) plots at four locations in 1996 and 1997.
		an increase in leaf/stem ratio in the susceptible cultivars,
		cultivar group to be equal to or slightly superior in forage
	agron.scijournals.org /cgi/content/full/96/2/337 (3713 words)

	The Carnivorous Plant FAQ: cultivar registration
		As I described in the previous FAQ entry, a cultivar is a plant recognized for its special, superior qualities.
		At least a few dozen specimens of the potential cultivar should be in cultivation, and should be under the care of several different growers.
		So you see, registering a plant as a cultivar is a little tricky, but a cultivar designation is meant to describe a truly superior plant.
	www.sarracenia.com /faq/faq3960.html (481 words)

	AWN Vol 43: awn43c3.html
		Among the 20 cultivars, 18 belonged to the first quality class and 14 belonged to the A quality group.
		Technological quality is primarily conditioned by the quality level of the cultivar, but the realized quality is conditioned also by the agroecological conditions of culture.
		Cultivars NS Rana-5, Nevesinjka, and Slavija had significantly higher grain yields (at a 5 % probability) than the average of the experiment in the first or second years.
	wheat.pw.usda.gov /ggpages/awn/43/awn43c3.html (2473 words)

	OAK CULTIVAR NAME REGISTRATION (Site not responding. Last check: 2007-10-14)
		The International Oak Society was appointed as International Cultivar Registration Authority (ICRA) for the genus Quercus by the Commission for Nomenclature and Cultivar Registration of the International Society for Horticultural Science (I.S.H.S.) in 1998.
		All ICRAs are contracted to operate within the provisions of the current I.C.N.C.P. It is not the function of an ICRA to (a) conduct trials, (b) judge if one cultivar or Group is more meritorious or useful than another or (c) judge distinctness of cultivars or Groups.
		ICRAs record cultivar and Group names, not the cultivars or Groups themselves, so one does not register a new cultivar with an ICRA, one registers their names.
	www.saintmarys.edu /~rjensen/IOSCultivars.html (383 words)

	6. Genetic resources of tropical fruit species in China - by Zheng Xueqin
		All these banana cultivars are distributed in the area south of 23° 30'.
		Some 54 accessions have been classified on the basis of their fruit shapes, maturity time, etc. From Hainan, semi-wild types have been collected and classified into 9 groups, which are used mainly as rootstocks.
		Cultivars include Smooth Cayenne, Queen and Spanish, and hybrids of Smooth Cayenne and Queen.
	www.ipgri.cgiar.org /publications/HTMLPublications/655/ch10.htm (2180 words)

	ACES Publications : ANR-1089
		Indeterminate cultivars flower as they grow taller and more pods are likely to be set on the lower branches.
		Developing a rule of thumb for predicting when a particular Maturity Group cultivar will flower is difficult because of variation among the genotypes, environments, longitude, latitude, and planting date.
		Planting a Group V cultivar late in the season can result in a shorter plant due to the early initiation of flowers.
	www.aces.edu /pubs/docs/A/ANR-1089 (914 words)

	cultivar
		An unvarying variety of plant produced by selective hybridization, or, sometimes found in wild populations, and maintained by vegetative propagation or by inbred seed.
		A taxon consisting of a group of cultivars.
		A group composed of several closely related cultivars; grex.
	glossary.gardenweb.com /glossary/cultivar (237 words)

	International Cultivar Registration Authorities
		The executive committee of this Commission is responsible for the appointment of all International Cultivar Registration Authorities (ICRAs) and for the monitoring of their work.
		The scheme operates under the International Code of Nomenclature for Cultivated Plants (ICNCP) and its chief aim is to prevent duplicated uses of cultivar and Group epithets within a defined denomination class (usually a genus), as well as ensuring that names are in all other respects in accord with the latest edition of the ICNCP.
		ICRAs may record more than just cultivar and Group epithets as they may also note trade designations and trademarks used in labelling plant material, so as to help avoid confusion with properly established names.
	www.ishs.org /sci/icra.htm (880 words)

	aspl870
		ns: the cultivars of A. nidus to be closer to this species.
		A very good example of this mutation which is best considered a garden cultivar instead of a botanical variety.
		It is more extreme example of this cultivar group and a lovely one.
	members.tripod.com /~Hatch_L/aspl870.html (529 words)

	HORTAX NEWS Vol 1, Part 2 - 19 Feb 1996
		This group was set up to improve the taxonomy and nomenclature of all cultivated plants, to share information and resources, to promote better nomenclatural practices, and to strive for a clearer and philosophically sound code of nomenclature for cultivated plants.
		The point behind a cultivar is that if propagated by an appropriate method, it may be distributed and purchased true to name and the buyer will get a plant as close as is possible to the original.
		VKC argued that the term "group" as introduced and defined in the 1980 ICNCP leaves room for accommodating ill-defined populations of cultivated plants that have not reached the status of wide acceptance, which is why they do not have a name, or, put differently, which is why they have not been accommodated in a classification.
	www.hortax.org.uk /hortaxnews/text2.html (9035 words)

	Sorting Musa names.html
		In the meantime it is recommended by authorities to conserve cultivar names, inappropriate as they may sometime be, because they are familiar to field workers, and adopt the grouping system in nomenclature as illustrated below (ie groups of the type (AAB Group), not the cultigroups which may lead to extreme confusion).
		Others are totally against the idea and are of the opinion that anyone reading A or B in a group name ought to know that they refer to acuminata and balbisiana.
		Given that group names based on ploidy only exist in relation to bananas, ignoring any grouping and any specific epithet is too tempting to be resisted to.
	www.plantnames.unimelb.edu.au /Sorting/Musa.html (2660 words)

	Cultivar group - Wikipedia, the free encyclopedia
		Under the ICNCP, a cultivar group is a gathering of cultivars.
		Another reason for designating a group is when a wellknown plant loses its taxonomic status (e.g.
		For the technical details of how to write a group name see cultivar.
	en.wikipedia.org /wiki/Cultivar_Group (145 words)

	Reclassification of landrace populations of cultivated potatoes (Solanum sect. Petota) -- Huamán and Spooner 89 ...
		Group, and Stenotomum Group are primarily distinguished by tuber
		Group) that also are not allowed because a cultivar epithet
		There are 507 accessions of Stenotomum Group in the CIP genebank.
	www.amjbot.org /cgi/content/full/89/6/947 (6813 words)

	Cultivar Group (Site not responding. Last check: 2007-10-14)
		An association of related cultivars with a species, subspecies, or variety due to common origin or groups of traits.
		Typically a cultivar group originates from a single popular cultivar which has many sports or seedlings that differ from it in small ways.
		In some cases these may be parallel genetic mutations or even have linked genes but no common history.
	www.gardenterms.com /cultivar_group.htm (60 words)

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