The purposes of this study were to assess the effectiveness drought tolerance indices for selection in orange fleshed sweet potato genotypes. In order efficiency indices, 10 Orange Fleshed Sweet Potato genotypes (OFSP) evaluated under Normal or full irrigation and extreme water stress environments.

The scurf disease of the sweet potato (Ipomoea batatas) was first described by Halsted, who published a brief account of it in 1890. To the fungus he gave the name Monilochaetes infuscans, a new genus and species, of which, unfortunately, he gave no technical description. For many years following his pioneer work little or no attention was given to sweet-potato diseases. This very common and in...

Over a range of concentrations from less than 0.1 mm to more than 70 mm, sweet potato root mitochondria display a bimodal substrate saturation isotherm for malate. The high affinity portion of the isotherm has an apparent Km for malate of 0.85 mm and fits a rectangular hyperbolic function. The low affinity portion of the isotherm is sigmoid in character and gives an apparent S(0.5) of 40.6 mm a...

Invertase inhibitors have been isolated and partially purified from red beets, sugar beets, and sweet potatoes. These inhibitors are thermolabile proteins with molecular weights of 18,000 to 23,000. They do not inhibit yeast and Neurospora invertases, but they are reactive with potato tuber invertase and other plant invertases with pH optima near 4.5. There are differences in reactivity of the ...

This study aimed to determine the levels and characteristics of inulin contained in various types tubers Magelang district. The samples used were honey sweet potato (Ipomoea batatas L.), purple white gadung (Dioscorea hispida), yam alata canna (Canna edulis Ker.), arrowroot (Maranta arundinacea). variables observed yield, content, production, water content yield solubility, degree acidity (pH) ...