ISSN:
1573-5036
Schlagwort(e):
nitrogen acquisition
;
potato
;
root morphology
;
Solanum tuberosum
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft
Notizen:
Abstract Two potato (Solanum tuberosum L.) cultivars (‘Astrid’ and ‘Bodenkraft’) differing in their nitrogen acquisition from the soil (Hunnius, 1981) were used in nutrient solutions to study the effect of increasing concentrations of nitrate (0.05; 0.5; 5.0 mol m-3) particularly on root growth and morphology. In each variety increasing nitrogen concentrations stimulated shoot growth more than root growth. At all nitrate concentrations, the variety with higher nitrogen acquisition (‘Astrid’) had a significantly larger root system. The larger root system of ‘Astrid’ compared to ‘Bodenkraft’ was particularly evident when surface area and total length of the roots, instead of root dry weight were used as parameters. The results stress the importance of root length and surface area for nitrogen acquisition from soils.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF00011258
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