20.500.12556/RUL-166360 Variations in the nutritional profile and colour parameters of sweet potato varieties with different flesh colours effects of cropping system, mulching and growing season The study investigated the effects of cropping system (CS), mulching (M) and year (Y) on the nutritional profile and colour parameters of four sweet potato varieties, namely Purple Speclet, Martina, Janja and Lučka. The results showed that the variations were mainly due to the genetic makeup of the varieties, with Purple Speclet having the highest dry matter, protein, vitamin C content, total phenolic content, antioxidant potential and total soluble solids. Lučka had the highest total sugar content, while Martina and Janja only stood out in terms of glucose content. The nutritional parameters correlated strongly with the colour parameters, suggesting that colour could be a useful indicator for predicting the nutritional quality of sweet potatoes. Nutritional parameters such as total phenolic content (TPC), vitamin C, antioxidant activity (AOP) and dry matter (DM) were significantly influenced by growing season, cropping system and mulching. The growing season had the greatest influence on TPC, vitamin C, AOP and DM. Mulching had the highest impact on DM, glucose content and vitamin C, while the cropping system had the highest impact on vitamin C, AOP and protein content. In particular, organic farming without PE mulching during the growing season resulted in higher levels of vitamin C, TPC and AOP, especially in relatively less favourable weather conditions. However, when PE mulch was used, there was a significant decrease in TPC and AOP. In contrast, no significant environmental influence was observed for the colour parameters, evidently differentiated in the purple-fleshed genotype with respect to the others, indicating that they are predominantly under strong genetic control. The results could help to introduce nutrient-rich sweet potato varieties into sustainable cropping systems and promote the production of sweet potatoes in Europe, particularly the Slovenian varieties Lučka, Martina and Janja, which have not been widely cultivated to date. sweet potato flesh colour nutritional profile cropping system genetic makeup linear discriminant analysis sladki krompir hranilna vrednost barva mesa krompirja sortna značilnost način pridelave true false true Angleški jezik Slovenski jezik Članek v reviji 2025-01-08 14:23:53 2025-01-08 14:23:55 2025-01-09 03:58:01 0000-00-00 00:00:00 2024 0 0 12 str. art. 113807 Vol. 338 2024 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 631.52 1879-1018 10.1016/j.scienta.2024.113807 215607299 1-s2.0-S0304423824009609-main.pdf 1-s2.0-S0304423824009609-main.pdf 1 AE79A1A3295DC8823D2D5803FEE5D03D 226948a0bdcbb0d7415ead5f53b218661cbb3ea4c4236a29981a91042e396fdf 599f689e-cdc3-11ef-b232-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=197929 https://www.sciencedirect.com/science/article/pii/S0304423824009609 0 50fdb360-cdc3-11ef-b232-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=197928 Biotehniška fakulteta 0 0 0