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Systematic botany in the development of Vernonia galamensis as a new industrial oilseed crop for the semi-arid tropics


, : Systematic botany in the development of Vernonia galamensis as a new industrial oilseed crop for the semi-arid tropics. Acta Universitatis Upsaliensis, Symbolae Botanicae Upsalienses 28(3): 125-135

This species was first discovered by the author in Ethiopia in 1964. Its seeds are a source of vernolic (epoxy) acid. Current taxonomic knowledge, which identifies 6 subspecies and 4 botanical varieties in East Africa, provides guidance to develop a strategy for exploration for germplasm to provide greater seedling vigour, increased drought resistance and other desirable characteristics.

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Related references

Perdue, R.E.J.; Jones, E.; Nyati, C.T., 1989: Vernonia galamensis: a promising new industrial crop for the semi-arid tropics and subtropics. An account of V. galamensis as a potential oilseed crop is given. Seeds of V. galamensis contained 30% more vernolic acid than the best improved cultivars of V. anthelmintica and seed retention was complete in mature plants. Research on V. galamen...

Perdue R.E.Jr, 1986: Vernonia galamensis a promising new crop for semi arid areas and the tropics and subtropics. Journal of the American Oil Chemists' Society 63(4): 405

Thompson, A.E.; Dierig, D.A.; Johnson, E.R.; Dahlquist, G.H.; Kleiman, R., 1994: Germplasm development of Vernonia galamensis as a new industrial oilseed crop. Genetic transfer of the day-neutral flowering habit found in Vernonia galamensis subsp. galamensis var. petitiana accession A20295 was successfully accomplished by intraspecific hybridization. Crosses were made in 1990-91 utilizing var. petitiana...

Tadele Tefera; Tesfaye Baye, 2003: Mycoflora associated with new industrial oilseed crop (Vernonia galamensis var. ethiopica) in Ethiopia. Mycoflora associated with V. galamensis var. ethiopica ecotypes Bedeno, Melkabello, Hararzuria, Bokekuni, Meta, Chiro, Derku and Whiteflower sown every year from June 1995 to June 2000 was studied for the first time under field and laboratory cond...

Teketay, D., 1993: Germination ecology of Vernonia galamensis (Cass.) Less. var. ethiopica M. G. Gilbert, a new industrial oilseed crop. In a controlled environment experiment the effects of different seed treatments on germination of V. galamensis var. ethiopica were studied. Treatments included temperatures of 15, 20, 25, 30 or 35 degrees C, seed coat and pericarp intact or remov...

Tagwira, F., 1996: Commercial development of Vernonia galamensis as an industrial crop. V. galamensis, a source of oils rich in vernolic acid, was first discovered as a potential new oilseed crop in 1964 in Ethiopia. Experimental plantings since then have been made in the USA, Kenya and Zimbabwe. This paper examines the commercial us...

Rao, M.S.R.M.; Padmaiah, M.; Reddy, K.K.; Patil, S.L., 1993: Sunflower as an oilseed crop of the semi-arid tropics of Andhra Pradesh. In field experiments at Chinnatekur watershed on red and black soils groundnuts were sown early (June) and late (July) in 1989-91 and sunflowers early (June and July) and late (Aug. and July), inside or outside the watershed with graded bunds or g...

Baye, T.; Becker, H.C., 2005: Genetic variability and interrelationship of traits in the industrial oil crop Vernonia galamensis. Vernonia galamensis is a wild plant from the family Asteraceae which is endemic to East Africa and has the potential to become a new oil crop for industrial uses. Its seed oil is rich in vernolic acid, a fatty acid of high interest for oleochemica...

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Favi, F.; Cantrell, C., L.; Mebrahtu, T.; Kraemer, M., E., 2008: Leaf peltate glandular trichomes of Vernonia galamensis ssp Galamensis var Ethiopica gilbert Development, ultrastructure, and chemical composition. Plants from the genus Vernonia produce a variety of flavonoids and bitter sesquiterpene lactones important for agriculture and human health. Leaf glandular trichomes of Vernonia galamensis ssp. galamensis var. ethiopica Gilbert ( VGAE) were inves...