Phenotypic characteristics during early growth of Equisetum arvense originating along a 1000 km north-south gradient in Sweden
Independent thesis Advanced level (degree of Master (Two Years)), 60 credits / 90 HE creditsStudent thesis
Equisetum arvense is an evolutionary old species that is common as a perennial weed in Europe, North America and Australia. It reproduces vegetatively via rhizomes and tubers and due to this it spreads efficiently below ground after initial establishment. The aim of this study was to increase the knowledge of performance during early growth of the species. This included differences between clones along a gradient throughout Sweden, development of tubers and rhizomes, local adaptation and the overall variation within the species. Rhizomes of E. arvense were collected from three different places in each of four regions, up to 1000 km apart, in Sweden. Clones from the twelve places were planted in spring for a common garden study. During summer the plants were watered when needed and during late summer the plants were harvested every second week until late autumn. Data recorded were tuber and rhizome biomass, aboveground biomass, number of tubers and three different tuber characteristics. The results showed clone specific phenotypes, but no gradient response or adaptation to regions, e.g. the clone with the highest and the clone with the lowest tuber biomass in relation to the rhizome biomass were from the same region. During early growth, the plants developed continuously with rapid increase of belowground biomass after development of aboveground photosynthetic parts. Tuber productions differed a lot between clones. The relationship between tubers and rhizomes may affect the clone’s possibility to be competitive in different environments. Management advice may need to be based on clone specific knowledge.
Place, publisher, year, edition, pages
2011. , 24 p.
Common horsetail, perennial weed, rhizome, tuber, vegetative reproduction
IdentifiersURN: urn:nbn:se:liu:diva-70248ISRN: LiTH-IFM- Ex--11/2450--SEOAI: oai:DiVA.org:liu-70248DiVA: diva2:437290
Subject / course
UppsokAgriculture, Veterinary Medicine, Forestry
Karlsson, Laila, PhD
Milberg, Per, Professor