Add to ORKGCrossing experiments were carried out between the three cytotypes (2n=24, 2n=40 and 2n=48) of Symphytumofficinale and that of Symphytumasperum (2n=32), The results indicate that morphologicallyclosely related types are sometimes crossable, whereas in other casesno hybrids could be produced. On the other hand morphologicallyvery distinct types could be crossed with great ease. The significance ofthese studies for the elucidation oftaxonomic problems is discussed. 1
Interspecific hybridization is a primary cause of extensive morphological and chromosomal variation ...
Although the genus Nymphaea (waterlily) includes only two native species (N. alba and N. candida) in...
Euphrasias are semi-parasitic annuals whose roots attach themselves to the roots of other plants. Be...
Crossing experiments were carried out between the three cytotypes (2n=24, 2n=40 and 2n=48) of Symphy...
Two different hybrids in the genus Symphytum were collected in the Dutch province of Limburg, the fi...
106 populations of Symphytum officinale were cytologically investigated. The distribution of white-f...
In Süd- und Mittelhessen wurden Pflanzen aus dem Formenkreis des Symphytum officinale an natürlichen...
The occurrence of hybrids, both interspecific and intergeneric, is frequent in the Gramineae general...
The Ox-eye Daisy is very polymorphic and a large number of infraspecific taxa have been described by...
Sesamum indicum L. (2n = 26) and Ceratotheca sesamoides Endl. (2n = 32) were crossed to investigate ...
Zephyranthes is a rather versatile genus and contains self-incompatible and self-compatible taxa cou...
One strain of Secale silvestre, S. vavilovii, and S. africanum, two strains of S. montanum, the six ...
Four species of the genus Parthenium were involved in a hybridization attempt. The species were: gua...
Aspects of natural and artificial hybridization in Mesembryanthemaceae are discussed. Morphological ...
International audienceThe few attempts to produce artificial hybrids in the genus Hieracium s. str. ...
Interspecific hybridization is a primary cause of extensive morphological and chromosomal variation ...
Although the genus Nymphaea (waterlily) includes only two native species (N. alba and N. candida) in...
Euphrasias are semi-parasitic annuals whose roots attach themselves to the roots of other plants. Be...
Crossing experiments were carried out between the three cytotypes (2n=24, 2n=40 and 2n=48) of Symphy...
Two different hybrids in the genus Symphytum were collected in the Dutch province of Limburg, the fi...
106 populations of Symphytum officinale were cytologically investigated. The distribution of white-f...
In Süd- und Mittelhessen wurden Pflanzen aus dem Formenkreis des Symphytum officinale an natürlichen...
The occurrence of hybrids, both interspecific and intergeneric, is frequent in the Gramineae general...
The Ox-eye Daisy is very polymorphic and a large number of infraspecific taxa have been described by...
Sesamum indicum L. (2n = 26) and Ceratotheca sesamoides Endl. (2n = 32) were crossed to investigate ...
Zephyranthes is a rather versatile genus and contains self-incompatible and self-compatible taxa cou...
One strain of Secale silvestre, S. vavilovii, and S. africanum, two strains of S. montanum, the six ...
Four species of the genus Parthenium were involved in a hybridization attempt. The species were: gua...
Aspects of natural and artificial hybridization in Mesembryanthemaceae are discussed. Morphological ...
International audienceThe few attempts to produce artificial hybrids in the genus Hieracium s. str. ...
Interspecific hybridization is a primary cause of extensive morphological and chromosomal variation ...
Although the genus Nymphaea (waterlily) includes only two native species (N. alba and N. candida) in...
Euphrasias are semi-parasitic annuals whose roots attach themselves to the roots of other plants. Be...