Abstract
In the years 2004 and 2005 precise field trials were performed with the aim to evaluate the effect of variety, year of cultivation, N, P, K and Mg fertilization, and the cover with white propylene fibre Paegas-Agro UV 17 on the total carotenoid content (TC) in potato tubers. TC was determined by absorption UV-VIS spectrophotometry and obtained results were statistically evaluated (ANOVA and MANOVA variance analyses, Scheffe's test). Statistically significant differences (P = 0.05) in the ability of varieties to synthesize carotenoids were found (Karin, Agria and Marabel with high TC Ă Impala and Saturna with low TC) and also the year of cultivation significantly affected TC (5.8 mg/kg fw in 2004, 20.9 mg/kg fw in 2005). The effect of fertilization with N, P, K and Mg on TC in potatoes did not show any significant effect; however significant differences were observed among varieties. The effect of white polypropylene fibre in two early potato varieties (Adora and Impala) during three dates of harvest on TC in potato tubers was not significant. Contrariwise, statistically significant effects on TC were reported in the case of potato tubers maturity, year of cultivation and potato variety.
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Claims 5
Claim · model-written summary
Potato varieties differed significantly in carotenoid content, with Karin, Agria and Marabel high and Impala and Saturna low.
- Taxon
- potato
Solanum tuberosumt0 - Material
- Karin, Agria and Marabele0
- Outcome
- carotenoidse0
- Direction
- highe0
- Comparator
- Impala and Saturnae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Statistically significant differences (P = 0.05) in the ability of varieties to synthesize carotenoids were found (Karin, Agria and Marabel with high TC Ă Impala and Saturna with low TC)”
t0“potato tubers (Solanum tuberosum L.)”
Claim · model-written summary
Potato tuber total carotenoid content differed significantly between years: 5.8 mg/kg fw in 2004 and 20.9 mg/kg fw in 2005.
- Taxon
- potatoSolanum tuberosumt0
- Outcome
- TCe0
- Value
- 20.9 mg/kg fwe0
- Qualifier
- 5.8 mg/kg fwe0
- Comparator
- 2004e0
- Setting
- 2005e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the year of cultivation significantly affected TC (5.8 mg/kg fw in 2004, 20.9 mg/kg fw in 2005)”
t0“potato tubers (Solanum tuberosum L.)”
Claim · model-written summary
N, P, K and Mg fertilization showed no significant effect on potato total carotenoid content.
- Taxon
- potatoesSolanum tuberosume0
- Treatment
- fertilization with N, P, K and Mge0
- Outcome
- TCe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of fertilization with N, P, K and Mg on TC in potatoes did not show any significant effect”
Claim · model-written summary
White polypropylene fibre did not significantly affect tuber total carotenoid content in Adora and Impala across three harvest dates.
- Taxon
- potatoSolanum tuberosume0
- Material
- Adora and Impalae0
- Treatment
- white polypropylene fibree0
- Outcome
- TCe0
- Qualifier
- three dates of harveste0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of white polypropylene fibre in two early potato varieties (Adora and Impala) during three dates of harvest on TC in potato tubers was not significant.”
Claim · model-written summary
Potato tuber maturity significantly affected total carotenoid content.
- Taxon
- potatoSolanum tuberosume0
- Organ / stage
- tubers maturitye0
- Outcome
- TCe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“statistically significant effects on TC were reported in the case of potato tubers maturity”
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