Abschlussbericht Projekt: „Verminderung der ... - BLE

L -1 also. After storage periods of five (Fig. 3 [A, VIII]) and eight months (Fig. 3 [A, IX]) in
all cultivars the amount of tubers with a specific gravity of 1.076-1.085 kg L -1 dominated.
Blackspot index and tuber components attributed to specific gravity. Results of BSI,
tuber dry matter concentration and the concentrations of its determined components are
shown in Figure 1 [B, I-III], Figure 2 [B, IV-VI], Figure 3 [B, VII-IX]. For BSI and tuber
dry matter concentration only standard deviations are mentioned, because the concentrations
of dry matter attributed components were not significantly different between tubers
differing in their specific gravity, except the starch concentration. The obtained amount of
tubers with specific gravities 1.095 kg L -1 was sometimes less than a
required volume of 6 L, therefore BSI tests were not performed and hence no data shown
in the figures. The concentrations of dry matter attributed components were not determined
after harvest in 2006 (Fig. 2 [B, IV]) and after harvest in 2007 (Fig. 2 [B, VII]) because of
a lack of sufficient amount of tuber samples.
In general, tubers with different specific gravities had significantly different dry matter
concentrations. However, the tuber dry matter concentration was not significantly different
between cultivars, vegetation and storage period. For example, tubers with specific gravities
24 % in tubers with a specific gravity of >1.095 kg L -1 .
The dry matter concentration of tubers was significantly correlated to their BSI (P