Production of some Colored Potato Genotypes in Organic Culture

Abstract

The purpose of this study was to identify the cultivars of potatoes with good production capacity and high nutritional value under ecologically culture conditions. The biological material consisted of five new potatoes cultivars: Brasovean, Carpatin, Cranberry Red, Montain Rose, Purple Majesty and Blue Congo. These new, highly pigmented varieties have yellow, pink or red peel and pulp, due to its high anthocyanin content. In order to achieve the objective, the productivity elements were determined: number of tubers and medium weight/plant, productivity as well as starches, carbohydrates, vitamin C content and antioxidant capacity. The obtained results were statistically interpreted by the analysis of variance, and the differences between genotypes were estimated by the threshold of significance at p≤0.05%. Cultivar Carpatin recorded the best production (32.7 t/ha) and Cranberry red and Montain Rose cultivars recorded the highest content in vitamin C (17.6 respectively 18.64 mg/100g f.m) and Blue Congo with highest antioxidant capacity (162.65 DPPH μMTE/100g).

Nutraceutical value and production of the sweet potato (Ipomoea batatas L.) cultivated in South-West of Romania

“…These results are consistent with those reported by Krochmal-Marczak et al, (2014) in Poland, by Dinu and Soare, (2015) in the south-west of Romania and by Zihin et al, (2011) in Turkey. The results of this study are inferior to those reported by Šlosár et al, (2019) who recorded 179.66 mg/kg in white flesh sweet potato, but higher than those reported by Soare et al, (2018) The phenolic compounds ranged between 21.95 mg GAE/100 g and 49.68 mg GAE/100 g (Table 3). Genotypes 1 and 4 had lower values than the other three, which recorded values above 40.00 mg GAE 100 g. The results of this study are inferior to those reported by Tokusoglu et al, (2005) The antioxidant activity was also quantified in the roots of the studied sweet potato genotypes by two methods, DPPH (free radical scavenging method) and ABTS, and the results are expressed in μMAsA/100 g. This content varied from 30.16 to 52.60 μMAsA/100 g, by DPPH with the lowest values for genotypes 3 and 1 and the highest for genotype 2 (Table 5).…”

“…were extracted in distilled water (1:50 w/v) and assayed colorimetric with 3.5 dinitrosalicylic, (Soare et al, 2018).…”

“…These antioxidant properties are due to the presence of substances such as phenols, anthocyanins, various contents of flavonoids (Cao et al, 1997). Some of the natural antioxidants found in plants include vitamins, phenols, flavonoids, etc., (Soare et al, 2018). According to Zhang et al, (2003), sweet potatoes have an important role in human health as well as medicinal values because they contain different nutrients such as carotene, vitamin (B 1 , B 2 , C, E), dietary fibers, minerals (K, Ca, Fe, P and Se).…”

Behavior of biometric parameters clones for the obtaining of potato baby with pigmented flesh

“…A través del mejoramiento se han creado nuevas variedades, con alta capacidad de producción y atributos de mayor calidad para cumplir con los requisitos del mercado, debido a su sabor agradable, digestibilidad y alto valor nutricional, que se consumen en diversas formas (cocidos, horneados, fritos, en forma de sopas, ensaladas, purés) (Soare et al, 2018). Sin, embargo, es escaso su comercialización en forma de minitubérculos o papa baby.…”

“…Debido a ello es necesario recurrir por el mejoramiento genético para obtener variedades de pulpa pigmentada que tengan capacidad de producir un alto número de tubérculos por planta. Con alto contenido de compuestos bioactivos y actividad antioxidante (Soare et al, 2018). Debido a que no existen variedades de papa con producción de minitubérculos para el consumo humano, pese a que en el mercado internacional se comercializa como papa coctel, que es la selección de minitubérculos.…”