Location: Soil Management ResearchTitle: Comparison of the emergence of three Brassicaceae species of different origins grown in Spain and USA Author
|Gesch, Russell - Russ|
Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: 6/27/2013
Publication Date: 6/27/2013
Citation: Royo-Esnal, A., Torra, J., Recasens, J., Gesch, R.W. 2013. Comparison of the emergence of three Brassicaceae species of different origins grown in Spain and USA [abstract]. European Weed Research Society. p. 53. Interpretive Summary:
Technical Abstract: Thlaspi arvense, Camelina sativa, C. microcarpa and Neslia paniculata are four Brassicaceae family species that are becoming rare in North-Eastern Spain. Conversely, both T. arvense and C. sativa are being investigated as oilseed crops in North America for industrial/biofuel purposes. C. microcarpa could have similar productivity characteristics as C. sativa, while the potential benefits of N. paniculata are largely unknown. Knowledge about the timing of emergence of these species could be helpful for either conservational or production purposes. Therefore, we compared the emergence of these species with two origins under Mediterranean and Continental conditions. Seeds harvested in summer 2011, and stored at lab conditions, were sown in 1 m2 plots in September (USA) and November (Spain) 2011 at a rate of 1000 seeds/plot, with four replications. Emergence of seedlings was followed weekly until May. The emergence of the two populations of T. arvense was similar in Lleida and in Morris; the Spanish population presented a higher peak in spring than in autumn-winter, while the USA population presented similar emergence peaks. C. microcarpa also presented similar emergence behavior in both sites, but C. sativa did not have any spring emergence in Lleida, while in Morris, it did present some additional emergence. Finally, N. paniculata presented similar emergence in both seasons in Lleida, but the spring peak was much higher in Morris. The results suggest that, despite low emergence in some species, the two emergence peaks would allow their establishment as crops in either autumn or spring.