species information (Systematics, BiolFlor-Names, Status) |
BiolFlor-Name |
family |
german name(s) |
Allium cepa L. |
Liliaceae » |
Schalotte
Küchenzwiebel
|
reference |
Kühn, I., Klotz, S. 2002: Systematik, Taxonomie und Nomenklatur. In: Klotz, S., Kühn, I., Durka, W. (Hrsg.): BIOLFLOR - Eine Datenbank mit biologisch-ökologischen Merkmalen zur Flora von Deutschland. Schriftenreihe für Vegetationskunde. Bonn »
|
|
Synonymy (taxonomy after Wisskirchen & Haeupler, 1998) |
Allium cepa L. |
accepted |
|
Chromosome number » |
Basic chromosome number |
8 |
Chromosome number 2n |
16 |
Chromosome number (Germany) |
False |
Most common chromosome race |
False |
Ploidy level |
2 (diploid) |
Ploidy type |
D (diploid with haploid basic number) |
Reference |
Oberdorfer, E. 1983: Pflanzensoziologische Exkursionsflora. Ulmer, Stuttgart |
|
DNA content » |
DNA content (pg/2C) |
32.7 |
Chromosome number |
16 |
Quality |
chromosome number known and occurring in Germany [b] |
Authorised in BENNET & LEITCH 2001 |
False |
Reference |
Bennett, M.D., Leitch, I.J. 1995: Nuclear DNA amounts in angiosperms. Annals of Botany 76:113-176 |
DNA content (pg/2C) |
33.8 |
Chromosome number |
16 |
Quality |
chromosome number known and occurring in Germany [b] |
Authorised in BENNET & LEITCH 2001 |
False |
Reference |
Bennett, M.D., Leitch, I.J. 1995: Nuclear DNA amounts in angiosperms. Annals of Botany 76:113-176 |
DNA content (pg/2C) |
33.5 |
Chromosome number |
16 |
Quality |
chromosome number known and occurring in Germany [b] |
Authorised in BENNET & LEITCH 2001 |
True |
Reference |
Bennett, M.D., Smith, J.S. 1976: Nuclear DNA amounts in angiosperms. Philosophical Transactions of the Royal Society London B 274:227-274 |
DNA content (pg/2C) |
32.7 |
Chromosome number |
16 |
Quality |
chromosome number known and occurring in Germany [b] |
Authorised in BENNET & LEITCH 2001 |
False |
Reference |
Bennett, M.D., Leitch, I.J. 1997: Nuclear DNA amounts in angiosperms - 583 new estimates. Annals of Botany 80:169-196 |
|
Flowering phenology » |
Begin of flowering (months) |
6 |
End of flowering (months) |
8 |
Duration of flowering (months) |
3 |
Number of flowering phases |
0 |
Symphenological Groups » |
Phenological group |
0 (not available) Phenological season: not available |
Reference |
Dierschke, H 1995: Phänologische und symphänologische Artengruppen von Blütenpflanzen in Mitteleuropa. Tuexenia 15: 523-560 |
|
Type of reproduction » |
Type of reproduction |
s (by seed/by spore) |
Reference |
Krumbiegel, A. 2002: Morphologie der vegetativen Organe (außer Blätter). In: Klotz, S., Kühn, I., Durka, W. (Hrsg.) BiolFlor - Biologisch-ökologische Daten zur Flora Deutschlands, S. 1-2, Bonn |
Type of seed production » |
Type of seed production |
s (amphimictic, sexual) |
Reference |
Knuth, P. 1898: Handbuch der Blütenbiologie. Leipzig |
Dicliny » |
Dicliny |
so (hermaphroditic) |
Abundance |
always [1] |
Reference |
Knuth, P. 1898: Handbuch der Blütenbiologie. Leipzig |
Dichogamy » |
Dichogamy |
a3 (pronounced protandrous) |
Reference |
Knuth, P. 1898: Handbuch der Blütenbiologie. Leipzig |
Self-sterility and self-incompatibility » |
Self-sterility and self-incompatibility |
SC (self-compatibel) |
Reference |
East, E.M. 1940: The distribution of self-sterility in the flowering plants. Proceedings of the American Philosophical Society 82:449-518 |
Systematic reference |
species [S] |
SI mechanism » |
SI mechanism |
ID (inbreeding depression) |
Reference |
Villanueva-Mosqueda, E., Havey, M.J. 2001: Genetic analyses of seed yield in onion. Journal of the American Society for Horticultural Science 126:575-578 |
Pollen vector » |
Pollen vector |
se (selfing) Pollen vector group: se (Selbstbestäubung) |
Abundance |
rare [4] |
Reference |
McGregor, S.E. 1976: Insect pollination of cultivated crop plants. USDA, updated regularly at http://gears.tucson.ars.ag.gov/book/ |
Systematic reference |
species [S] |
Pollen vector |
in (insects) Pollen vector group: zo (Tierbestäubung) |
Abundance |
the rule [2] |
Reference |
McGregor, S.E. 1976: Insect pollination of cultivated crop plants. USDA, updated regularly at http://gears.tucson.ars.ag.gov/book/ |
Systematic reference |
species [S] |
Breeding system » |
Breeding system |
X (allogamous) |
Reference |
Fryxell, P.M. 1957: Modes of reproduction of higher plants. The Botanical Review 23:135-233 |
Floral rewards » |
Floral rewards |
1 (nectar) |
Reference |
Ascherson, P., Bernátsky, J., Bernner, W., Buxbaum, F., Graebner, P., Höck, F., Kirchner, O., Loew, E., Ludwig, F. 1934: Araceae, Lemnaceae, Juncaceae, Liliaceae, Dioscoreaceae, Amaryllidaceae, Iridaceae. von Kirchner, O., Loew, E., Schröter, C., and Wangerin, W. (Hrsg.), Lebensgeschichte der Blütenpflanzen Mitteleuropas Vol. 1, 3. |
Amount of floral reward |
3 (present) |
Flower color » |
Flower colour |
whitish |
Basic flower colour |
w (white) |
Reference |
Schubert, R., Jäger, E.J., Werner, K. (Hrsg.) 1987: Exkursionsflora Band 3. Atlas der Gefäßpflanzen. 6. Aufl., Volk und Wissen, Berlin |
Flower class after MUELLER » |
Flower class after MUELLER |
B (flowers with totally hidden nectar) Typical pollinators: bees, bumblebees, wasps, bombylides, syrphids |
Flower type after KUGLER » |
Flower type after KUGLER |
1.2bd (disk flowers with nectar ± hidden nectaries at or in ovary) |
|
Fruit type » |
Fruit type |
Ka (capsule) |
Diaspore type » |
Diaspore type |
S (seed) |
Germinule type » |
Heteromorphic type |
n (not heteromorphic) |
Germinule type |
S (seed) |
Information available |
True |
Development of nutritious appendages |
|
Development of flat appendages |
|
Development of elongated appendages |
|
Development of additional appendages |
|
Weights » |
Measured object |
Germinule |
Type of germinule or diaspore |
S (seed) |
Constraint |
False |
Heteromorphic type |
n (not heteromorphic) |
Weight (minimum) [mg] |
4.2 |
Weight (mean) [mg] |
5.0 |
Weight (maximum) [mg] |
5.8 |
Measured object |
Diaspore |
Type of germinule or diaspore |
S (seed) |
Constraint |
False |
Heteromorphic type |
n (not heteromorphic) |
Weight (minimum) [mg] |
4.2 |
Weight (mean) [mg] |
5.0 |
Weight (maximum) [mg] |
5.8 |
Sizes » |
Measured object |
Germinule |
Type of germinule or diaspore |
S (seed) |
Constraint |
False |
Heteromorphic type |
n (not heteromorphic) |
Length (minimum) [mm] |
2.5 |
Length (mean) [mm] |
2.8 |
Length (maximum) [mm] |
3.1 |
Width (minimum) [mm] |
1.8 |
Width (mean) [mm] |
1.9 |
Width (maximum) [mm] |
2.0 |
Height (minimum) [mm] |
1.0 |
Height (mean) [mm] |
1.2 |
Height (maximum) [mm] |
1.3 |
Measured object |
Diaspore |
Type of germinule or diaspore |
S (seed) |
Constraint |
False |
Heteromorphic type |
n (not heteromorphic) |
Length (minimum) [mm] |
2.5 |
Length (mean) [mm] |
2.8 |
Length (maximum) [mm] |
3.1 |
Width (minimum) [mm] |
1.8 |
Width (mean) [mm] |
1.9 |
Width (maximum) [mm] |
2.0 |
Height (minimum) [mm] |
1.0 |
Height (mean) [mm] |
1.2 |
Height (maximum) [mm] |
1.3 |
special references:
|
Grime, J.P., Mason, G., Curtis, A.V., Rodman, J., Band, S.R., Mowforth, M.A., Neal, A.M., Shaw, S. 1981: A comparative study of germination characteristics in a local flora. Journal of Ecology 69:1017-1069 (Gattung)
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Thompson, K., Band, S.R., Hodgson, J.G. 1993: Seed size and shape predict persistence in soil. Functional Ecology 7:236-241 (Gattung)
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Grime, J.P., Hodgson, J.G., Hunt, R. 1988: Comparative Plant Ecology. Unwin Hyman, London (Gattung)
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Brouwer, W., Stählin, A. 1955: Handbuch der Samenkunde. DLG-Verlag, Frankfurt/Main (Gattung)
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Häfliger, T.J., Wolf, M. 1988: Dicot Weeds. Documenta CIBA-GEIGY Ltd., Basel (Gattung)
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Luftensteiner, H.W. 1982: Untersuchungen zur Verbreitungssbiologie von Pflanzengemeinschaften an vier Standorten in Niederösterreich. Bibliotheca Botanica 135:1-68 (Gattung)
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Müller, P. 1955: Verbreitungsbiologie (Diasporologie) der Blütenpflanzen. Veröffentlichungen des Geobotanischen Institutes Rübel Zürich . Verlag Hans Huber, Bern. (Gattung)
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Salisbury, E.J. 1974: Seed size and mass in relation to environment. Proceedings of the Royal Society, London, Series B 186:83-88 (Gattung)
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Heinisch, O. 1955: Samenatlas der wichtigsten Futterpflanzen und ihrer Unkräuter. Deutsche Akad. Landwirtsch.-Wiss., Berlin (Gattung)
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