Proteins of potatoes in relation to the content of cadmium in their tubers
2010
Musilová, Janette | Bystrická, Judita
In the work the influence of cadmium in soil on the range of cumulating in tubers of potatoes and in proteins of potatoes grown under model conditions of pot trial experiment and under the real conditions of locality Imeľ in Danube Lowland was surveyed. Under conditions of pot trial the increased contents in tubers positively correlated with contents of cadmium applied into soil; the highest content of Cd was assessed in variety Junior (from 0.211 mg.kg-1 FM in 1st variant to 0.715 mg.kg-1 FM in 4th variant). The influence of increased content of Cd was manifested statistically significant in the content of proteins also in the content of Cd in protein fractions (1st var. 0.026 (Asterix) – 0.045 (Agria) mg.kg-1 FM; 2nd var. 0.047 (Livera) – 0.085 (Asterix) mg.kg-1 FM; 3rd var. 0.06 (Livera) – 0.117 (Junior) mg.kg-1 FM; 4th var. 0.068 (Livera) – 0.142 (Asterix) mg.kg-1 FM). Contents of Cd in potatoes from locality Imeľ did not exceed the value 0.1 mg.kg-1 FM defined in PK SR. The average contents of proteins were in range from 1.19 % (Victoria) to 1.489 % (Adora), the average content of Cd cumulated in proteins was the highest in variety Vivaldi (1.317 μg.kg-1 FM). Positive correlation was confirmed between the content of Cd in potato tubers and in proteins only in Livera variety.
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