EurekaMag.com logo
+ Site Statistics
References:
52,725,316
Abstracts:
28,411,598
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

Relationship between assimilate supply and essential oil accumulation in annual and biennial caraway (Carum carvi L.)


Journal of Essential Oil Research 5(2): 143-152
Relationship between assimilate supply and essential oil accumulation in annual and biennial caraway (Carum carvi L.)
The reported lower essential oil content of seeds of annual caraway compared with seeds of biennial caraway has three possible causes: genetic differences, differences in the location where the two types are grown, and differences in weather conditions during seed filling, since both forms of caraway ripen in a different period of the year. To study these possible causes, we compared essential oil formation in annual and biennial caraway in a greenhouse experiment, thereby excluding differences in location and weather conditions during seed filling. Surprisingly, under these conditions fruits of annual caraway had a higher dry-weight and contained more essential oil than fruits of biennial caraway. Measurement of plant carbohydrate content suggested that this was because more assimilate was available per fruit in annual caraway. It is concluded that there is no genetic barrier preventing annual caraway from reaching an essential oil content similar to biennial caraway. The low essential oil contents reported for annual caraway may be because less substrate is available per fruit, either as a result of weather conditions or because of an unfavorable balance between assimilate availability and number of fruits.


Accession: 002477700



Related references

Seed yields and essential oils of annual and biennial caraway (Carum carvi L.) grown in western Canada. Journal of Herbs, Spices and Medicinal Plants 6(1): 9-17, 1998

Influence of soil moisture upon seedlings emergence, weight and intake of mineral components in the biennial and annual caraway (Carum carvi L.). 1970

Influence of soil moisture upon seedlings emergence weight and intake of mineral components in the biennial and annual caraway d carum carvi d. Herba Polonica 16(3): 268-273, 1970

Investigations on the essential oil quality of annual caraway (Carum carvi f. annuum) by thin layer chromatography. Bulletin, Vyzkumny Ustav Zelinarsky Olomouc (18): 73-81, 1974

Variety trials with biennial caraway (Carum carvi L.). Zeitschrift fur Arznei and Gewurzpflanzen 3(2): 67-69, 1998

Seed yield in caraway (Carum carvi). 2. Role of assimilate availability. Journal of Agricultural Science 124(2): 245-251, 1995

Selection of annual caraway (Carum carvi var. annuum Hort.) on essential oil content and carvone in the maturity stage of milky-wax fruits. Beitrage zur Zuchtungsforschung Bundesanstalt fur Zuchtungsforschung an Kulturpflanzen 2(1): 195-198, 1996

Honey bee pollen foraging in relation to flowering phenology of biennial caraway (Carum carvi L.). Canadian Journal of Plant Science 82(1): 203-215, 2002

A new cultivar of caraway (Carum carvi L.) and its essential oil. Journal of Herbs, Spices and Medicinal Plants 2(2): 81-84, 1994

On the formation of essential oil in caraway d carum carvi d. Scientia Pharmaceutica 39(2): 82-101, 1971