Morphological and Chemical Evaluation of Fennel (<i>Foeniculum vulgare</i>Mill.) Populations of Different Origin
J. Bernáth, É. Németh, Ahmed Kattaa, É. Héthelyi
Journal of Essential Oil Research
Abstract
ABSTRACT A comparison study of 13 fennel (Foeniculum vulgare Mill. var. vulgare) populations of different origins were carried out on the basis of morphological and chemical characters. Relatively stable and variable characteristics were distinguished from evaluating the correlation matrix of the morphological and chemical properties from two successive years. High stability was shown from the morphological aspects such as relative leaf mass, seed size, thousand seed mass (r= 1.000, 0.801, 0.807 respectively); for essential oil accumulation, the presence of (E)-anethole and methyl chavicol were stable characteristics (r=0.923, 0.876). Three distinct intraspecific chemical taxa could be separated based on the cluster analysis of the seed oil: fenchone-rich (31–42% fenchone), methyl chavicol-rich (30–43% methyl chavicol) and (E)-anethole-rich (60–85% anethole) chemovarieties. Within the anethole group, the presence of a further four chemical subvariants of a lower rank (chemoforms) was justified by discriminant analysis. It was also proved that the morphological characters could not be used to support any intraspecific chemical classification. In this respect, the medium strength correlation was found only between the level of essential oil accumulation and the size of seeds (r=0.610).
Extracted Claims
5 claims extracted from this paper into the knowledge graph
fennel (Foeniculum vulgare Mill. var. vulgare) has stable morphological characteristics relative leaf mass, seed size, thousand seed mass
“High stability was shown from the morphological aspects such as relative leaf mass, seed size, thousand seed mass (r= 1.000, 0.801, 0.807 respectively);”
fennel (Foeniculum vulgare Mill. var. vulgare) has medium strength correlation between essential oil accumulation and seed size
“In this respect, the medium strength correlation was found only between the level of essential oil accumulation and the size of seeds (r=0.610).”
fennel (Foeniculum vulgare Mill. var. vulgare) has distinct intraspecific chemical taxa fenchone-rich, methyl chavicol-rich, (E)-anethole-rich chemovarieties
“Three distinct intraspecific chemical taxa could be separated based on the cluster analysis of the seed oil: fenchone-rich (31–42% fenchone), methyl chavicol-rich (30–43% methyl chavicol) and (E)-anet...”