Sweet Potato Quality as Affected by Soil Reaction (pH) and Fertilizer1
| Autor: | Roysell J. Constantin, Lloyd G. Jones, Travis P. Hernandez |
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| Rok vydání: | 1975 |
| Předmět: | |
| Zdroj: | Journal of the American Society for Horticultural Science. 100:604-607 |
| ISSN: | 2327-9788 0003-1062 |
| DOI: | 10.21273/jashs.100.6.604 |
| Popis: | ‘Centennial’ and ‘L4-89’ cultivars of sweet potatoes grown in soil with a pH of 4.4–5.1 had a higher dry matter content than when grown in soil with a pH of 5.3–6.0 or 6.4–7.2. Soil pH had no influence on dry matter content of ‘L4-186’. Soil pH did influence firmness of the canned product; however, cultivar differences occurred. ‘L4-89’ when grown on soil with a pH of 4.4–5.1 had firmer roots than when grown at higher soil pH. Firmness of ‘L-186’ was not affected by soil pH. Roots from ‘Centennial’ grown at the higher soil pH in combination with fertilizer were softer after canning; however, without fertilizer, roots from the intermediate soil pH were the firmest. Carotenoid content (flesh color) of either fresh or processed roots was not affected by varying soil pH. Varying soil pH had a slight influence on fiber content of ‘Centennial’ but no effect on fiber content of ‘L4-89’ and ‘L4-186’. Protein content and splitting of canned roots were not greatly affected by varying the pH of the soil. The addition of fertilizer to the soil pH plots resulted in a lowering of dry matter content and softer canned roots of ‘Centennial’; however, the reverse was true for ‘L4-89’. Carotenoid content and splitting of canned roots were not affected by the addition of fertilizer to the soil pH plots. Fiber content was lowered in ‘Centennial’ (fresh wt. basis) and in ‘L4-186’ (dry wt. basis) by the addition of fertilizer to the soil. Roots grown in plots receiving fertilizer were higher in protein content than those grown without fertilization. |
| Databáze: | OpenAIRE |
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