Characterisation of emergence of autumn and spring cohorts of Galium spp. in winter cereals

Royo-Esnal, Aritz; Torra Farré, Joel; Conesa i Mor, Josep A. (Josep Antoni); Recasens i Guinjuan, Jordi

doi:https://doi.org/10.1111/j.1365-3180.2010.00803.x

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Issue date

2010

Author

Royo-Esnal, Aritz

Torra Farré, Joel

Conesa i Mor, Josep A. (Josep Antoni)

Recasens i Guinjuan, Jordi

Suggested citation

Royo-Esnal, Aritz; Torra Farré, Joel; Conesa i Mor, Josep A. (Josep Antoni); Recasens i Guinjuan, Jordi; . (2010) . Characterisation of emergence of autumn and spring cohorts of Galium spp. in winter cereals. Weed Research, 2010, vol. 50, núm. 6, p. 572-585. https://doi.org/10.1111/j.1365-3180.2010.00803.x.

Abstract

The emergence of three artificial cohorts of Galium aparine, G. spurium and G. tricornutum with different accessions was studied over two years under the climatic conditions of north-eastern Spain. Seeds were sown in November (first cohort), January (second cohort) and February (third cohort). Higher and lower emergence percentages were obtained in the first and third cohorts, when fresher winter and dry spring occurred. However, this tendency changed when the spring was wet and emergence of third cohorts was more than that of the first. Results suggest that low temperatures in winter break the dormancy of these species, that soil moisture promotes the germination and emergence of these weeds and that emergence is highly influenced by dormancy levels during winter and spring. Lack of rain does not allow spring germination, hence, application of herbicides to control spring cohorts is not necessary.

URI

http://hdl.handle.net/10459.1/59503

DOI

https://doi.org/10.1111/j.1365-3180.2010.00803.x

Is part of

Weed Research, 2010, vol. 50, núm. 6, p. 572-585