The effects of variable nitrogen and phosphorous concentrations on Eriophorum vaginatum tillers grown in nutrient solutions

Autor:	Jochen Kummerow, David Krause
Rok vydání:	1982
Předmět:	Eriophorum vaginatum biology Ecology chemistry.chemical_element Biomass Tiller (botany) Phosphate biology.organism_classification Nitrogen chemistry.chemical_compound Nutrient chemistry Nitrate Aeration Ecology Evolution Behavior and Systematics
Zdroj:	Ecography. 5:187-193
ISSN:	1600-0587 0906-7590
DOI:	10.1111/j.1600-0587.1982.tb01035.x
Popis:	Eriophorum vaginatum tillers were collected at Eagle Creek, Alaska and cultivated in aerated solutions under controlled environmental conditions. The nutrient solutions contained traces, 1.05 and 21 mg l−1 N (nitrate) and traces, 0.15 and 3.10 mg l−1 P (phosphate), pH was maintained at 5.5. The high N, 21 mg l−1, and P, 3.18 mg l−1, nutrient solution produced significant biomass increases. Functional leaf areas were significantly enhanced by high N and P doses in the solutions. Root surface areas varied considerably between treatments; however, significant differences were not found. The mean root surface area of a tiller reached 126 cm2 (range 35–290 cm2), whereas the functional leaf area was 6.8 cm2 (range 3.3–20.3 cm2). Tillers growing in the highest N + P solutions produced twice the number of daughter tillers as tillers growing in solutions with trace amounts of N and P.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::4d02980eb8522514459cf2e0ea7c20ee https://doi.org/10.1111/j.1600-0587.1982.tb01035.x Zobrazit plný text záznamu