Sortentypische Unterschiede der Nährelementkonzentrationen bei Winterweizen

Genotypical Differences in the Nutrient Uptake of Winter Wheat
In order to investigate genotypical differences in the nutrient uptake of winter wheat cultivars the nutrient content of young wheat plants grown during 1982–1984 on three Brown Earth sites of Schleswig-Holstein were analysed.
Significant differences between the cultivars could be found in the content of the plants at shooting stage in P, K, Ca, Fe, Mn and Zn. The maximal difference between highest and lowest content (mean of 3 years) was about 20 % for P, K, Ca, Mn and Zn and 40 % for Mn. Since at shooting stage the dry matter production of the cultivars was about the same, the measured differences in nutrient concentrations may also represent differences in nutrient uptake.
Due to the low Mn-supply of the test soils the cultivars with the lowest Mn-uptake also produced the lowest grain yield.
By use of discriminant analysis it could be shown that the cultivars displayed a typical pattern of the nutrient concentrations. In the whole population two general types in nutrient pattern were found which are different in their concentrations of P, K, Ca and Zn.