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Outcrossing rate of safflower (Carthamus tinctorius L.) genotypes under the agro climatic conditions of Northern Germany

Rudolphi, Sabine; Becker, Heiko C. and von Witzke-Ehbrecht, Sabine (2008) Outcrossing rate of safflower (Carthamus tinctorius L.) genotypes under the agro climatic conditions of Northern Germany. Poster at: 7th International Safflower Conference, Safflower: Unexploited Potential and World Adaptability, Wagga Wagga, NSW, Australia, 3rd-6th November 2008.

[thumbnail of rudolphi-etal-2008-_poster-7th_safflower_conference_2008.pdf] PDF - German/Deutsch


Safflower oil is considered to be one of the highest quality vegetable oils for human nutrition, containing up to 90% linoleic acid. The cultivation of safflower would enlarge the number of species to increase biodiversity and widen crop rotation. Very little effort on safflower breeding has been done in Germany. The knowledge of the pollination system is a prerequisite of efficiently designing future breeding programmes. The cross pollination rate between and within plots was investigated in Göttingen (Latitude: 51° 32' North and Longitude: 9° 57' East ) in 2004 and 2005. A plot of 10 m2 of non-spiny plants was surrounded by plots of spiny plants. Ten nonspiny plants each of the border rows and of the core were harvested individually. The rate of cross pollination was calculated as the ratio of spiny to non-spiny offsprings. The average cross pollination was 6.5% (core), 9.7% (border no.1) and 18.1% (border no. 2). In a second experiment the rate of cross pollination within plots was estimated from non-spiny plants grown in mixture with spiny plants. The outcrossing rate was about 63% in 2004, but about 30% in 2005. Isolating or covering flowers by bags or cloth should be considered in pedigree breeding.

EPrint Type:Conference paper, poster, etc.
Type of presentation:Poster
Keywords:BÖL, BOEL, FKZ 03OE628/1, cross pollination rate, safflower breeding
Subjects: Crop husbandry > Production systems > Cereals, pulses and oilseeds
Crop husbandry > Breeding, genetics and propagation
Research affiliation: Germany > University of Göttingen > Plant Breeding
Germany > Federal Organic Farming Scheme - BOELN > Plants > Pflanzenzüchtung
Related Links:http://www.bundesprogramm-oekolandbau.de, http://www.bundesprogramm.de/fkz=03OE628/1, https://orgprints.org/perl/search/advanced?addtitle%2Ftitle=&keywords=03OE628/1&projects=BOEL&_order=bypublication&_action_search=Suchen
Deposited By: Rudolphi, Master of science Sabine
ID Code:15205
Deposited On:18 Jan 2009
Last Modified:12 Apr 2010 07:38
Document Language:English
Refereed:Not peer-reviewed

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