scholarly journals Uptake of Heavy Metals by Dioscorea rotundata (White Yam) and Ipomoea batatas (Sweet Potato) from Enyigba Lead-Zinc Derelict

2013 ◽  
Vol 2 (2) ◽  
Author(s):  
Oti Wilberforce J. O. ◽  
Nwabue F. I.
Keyword(s):  
Heavy Metals ◽  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Dioscorea Rotundata ◽  
White Yam ◽  
Lead Zinc

scholarly journals Control of Sprouting of Yam (Dioscorea rotundata) and Sweet Potato (Ipomoea batatas) using African Cardamon (Aframomum danielli), Turmeric (Curcuma longa) and Clove (Syzygium aromaticum)

2017 ◽  
Vol 1 (1) ◽  
pp. 59
Author(s):  
G. O. Adegoke ◽  
A. O. Odebadeu ◽  
M. O. Afolabi
Keyword(s):  
Weight Loss ◽  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Treatment Time ◽  
Curcuma Longa ◽  
Syzygium Aromaticum ◽  
Aqueous Extracts ◽  
Dioscorea Rotundata ◽  
Percentage Weight ◽  
The Difference

This study investigated the effects of the aqueous extracts of Aframomum danielli, Turmeric and Clove in sprouting of yam (Dioscorea rotundata) and sweet potato (Ipomoea batatas). The sliced tubers were dipped into the aqueous extracts of A. danielli, turmeric and Clove, each at concentrations of 5%, 10% and 15%. The tubers were allowed to stand in the solution for 5 and 10 minutes. Distilled water was used in the control samples. The yam slices were air dried after removal from the liquids, placed in paper boxes and incubated at room temperature (28.9 ± 4.0°C) and Relative Humidity of 44.6 ± 18.4 % for a period of six weeks (Bibah, 2014). Weight loss was determined by finding the difference between the initial and final weights and expressed as percentage weight loss. The results indicated that Turmeric treatments at different concentrations of 5%, 10% and 15% were more effective in reducing sprouting index at 5 minutes treatment time with values of 1.79%; 3.00% and 3.02% respectively. Clove treatment at 15%, 10% and 15% A. danielli treatment were more effective in controlling sprouting at 10 minutes treatment time for the yam tubers. There was no clear distinction in the effectiveness of each of aqueous extract of A. danielli, Turmeric and Clove in controlling sprouting at 5 and 10 minutes treatment time for sweet potato tubers.

Intercropping to control weeds in yam (Dioscorea rotundata) and sweet potato (Ipomoea batatas)

1969 ◽  
Vol 75 (1) ◽  
pp. 11-18
Author(s):  
Félix M. Román ◽  
Alberto Beale ◽  
Héber Irizarry
Keyword(s):  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Cropping Systems ◽  
Dioscorea Rotundata ◽  
Weed Population ◽  
Weed Growth ◽  
Tuber Production ◽  
Agricultural Experiment ◽  
Potato Yields ◽  
Made In

Monoculture and intercropping systems for yam (Dioscorea rotundata Poir) and sweet potato (Ipomoea batatas) production in two planting seasons were evaluated at the Corozal Agricultural Experiment Substation. In Experiment 1, yam cv. Guinea Blanco and sweet potato cv. Dominicana were planted the same date; and sweet potato 6 weeks before or after yam in February, April and May. In Experiment 2, the same cropping treatments were evaluated, but plantings were made in October and December 1983 and in January 1984. In this experiment Guinea Negro yam was used. In Experiment 1, sweet potato planted in monoculture or intercropped suppressed weed growth. However, the yam competition significantly reduced sweet potato yields. Although weeds grew freely in monoculture planting, yields were not significantly reduced. In Experiment 2, no significant differences were detected among cropping systems with regard to weed control. However, late plantings (December and January) reduced the weed population in both planting systems. When yam and sweet potato were intercropped during these months, the association did not affect yam production but did reduce sweet potato yields. The yam-sweet potato intercropping planting of December yielded highest for yams with 36,738 k/ha, and the highest combined yam-sweet potato tuber production with 59,014 k/ha. The sweet potato planted as a monoculture in December yielded (36,559 k/ha).

scholarly journals Accumulation of Heavy Metals in Soil and Sweet Potato (Ipomoea batatas) Irrigated with Treated and Untreated Textile Effluents

2019 ◽  
Vol 19 (9) ◽  
pp. 837-847 ◽  
Author(s):  
Amsalu Gobena Roro ◽  
Hussien Mohamed Beshir ◽  
Meseret Tesema Terfa ◽  
Bizuayehu Tesfaye ◽  
Firehiwot Nadew ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Textile Effluents

scholarly journals Control of Browning of Yam (Dioscorea rotundata) and Sweet potato (Ipomoea batatas) using African Cardamon (Aframomum danielli), Turmeric (Curcuma longa) and Clove (Syzygiumnn aromaticum)

2017 ◽  
Vol 1 (1) ◽  
pp. 52
Author(s):  
G. O. Adegoke ◽  
A. O. Odebadeu ◽  
M. O. Afolabi
Keyword(s):  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Curcuma Longa ◽  
Reflectance Spectroscopy ◽  
Enzymatic Browning ◽  
Aqueous Extracts ◽  
Dioscorea Rotundata ◽  
Colour Measurements ◽  
Potato Slices ◽  
Control Samples

This study was carried out to evaluate the effect of using the aqueous extracts of Aframomum danielli, Turmeric and Clove at different concentrations of 5%, 10% and 15%  as pretreatments in controlling browning of yam (Dioscorea rotundata) and sweet potato (Ipomoea batatas). Colour measurements were carried out on the untreated (control) and pretreated yam and sweet potato slices, using reflectance spectroscopy. The L* and a* values obtained for the control samples were compared with those of the pretreated yam and sweet potato samples. The inhibition of enzymatic browning in the samples was indicated by an increase in the “L*” values which ranged from 81.60 to 62.66 for yam samples and from 81.52 to 62.03 for sweet potato samples; browning was also associated to a decrease in the “a*” values for all the samples, which ranged from 4.29 to -1.86 for yam samples and 4.02 to -2.46 for sweet potato samples. Aqueous extracts of Aframomum danielli at minimum concentrations of 5% and 10% were found to be effective in controlling browning reactions in the pretreated yam slices and sweet potato slices respectively.

scholarly journals Heavy Metals Content of Common Tubers from Selected Farm Locations in Enugu North District, South East, Nigeria

2020 ◽  
pp. 1-6
Author(s):  
Fredrick C. Asogwa ◽  
Ebo Paul ◽  
Gerald W. Ugodi ◽  
Chioma J. Asogwa
Keyword(s):  
Heavy Metals ◽  
Sweet Potato ◽  
Manihot Esculenta ◽  
Human Exposure ◽  
Ipomoea Batatas ◽  
Standard Procedure ◽  
World Health ◽  
The World ◽  
Health Organization ◽  
Cu And Zn

The concentration of heavy metals (Cd, Pb, Ni, As, Cr, Mn, Cu, and Zn) in sweet potato (Ipomoea batatas), yam (Dioscorea ssp), and cassava (Manihot esculenta) in four farm locations in some local government areas of Enugu North District was determined. Samples were prepared following standard procedure and digested with a 5:1:1 mixture of trioxonitrate (V) acid, tetraoxosulphate (VI) acid, and perchloric acid as previously reported. Metal concentration was determined using Atomic Absorption Spectrophotometer (Perkin Elmer 1100B model). The range of heavy metals concentration recorded for sweet potato in the four farm locations were 60.26±2.30-312.66±31.24 mg/kg, 20.06±1.27-40.55±4.08 mg/kg, 12.60±2.00-32.06±3.20 mg/kg, 8.20±3.00-15.00±1.07 mg/kg, 0.05±0.07-0.80±1.27 mg/kg, 0.07±0.42-0.18±0.42 mg/kg, 0.01±0.20-0.09±0.03 mg/kg and 0.02±0.07-0.03±0.08 mg/kg respectively for Mn, Ni, Cu, Zn, Cr, Pb, As and Cd while the range in yam was 18.46±2.05-380.20±10.97 mg/kg, 44.20±4.99-66.30±3.87 mg/kg, 17.80±2.18-56.08±6.73 mg/kg, 12.00±2.00-42.30±0.06 mg/kg, 0.01±0.32-0.42±0.27 mg/kg, 0.02±0.07-0.20±0.12 mg/kg, 0.04±2.03-0.10±0.00 mg/kg and 0.01±0.07-0.08±0.47 mg/kg for Mn, Cu, Zn, Ni, Cr, Pb, As and Cd respectively. In cassava, the concentration range was 74.20±10.97-312.20±31.20 mg/kg, 14.20±1.29-38.22±6.07 mg/kg, 10.88±3.03-32.00±0.70 mg/kg, 3.20±0.20-11.20±1.09 mg/kg, 0.01±0.20-0.18±1.27 mg/kg, 0.02±0.03-0.12±0.07 mg/kg, 0.01±0.03-0.10±0.07 mg/kg and 0.03±0.00-0.05±0.42 mg/kg for Mn, Ni, Zn,Cu, Cr, Pb, Cd and As respectively. While Cd was not detected in farm location B and D in all the tuber samples, arsenic was detected in all the samples except in cassava cultivated in farm location B. All the heavy metals analyzed were each below the World Health Organization (WHO) permissible concentration except chromium which was slightly higher than the recommended limit of 0.05 mg/kg. Apart from 0.80±1.27 mg/kg Cr recorded for sweet potato cultivated in location C, the concentration of chromium in all the tubers were below the China’s State Environmental Protection Administration (SEPA) permissible limit of 0.5 mg/kg. Hence, risk assessment of Cr intake was recommended to ascertain the level of human exposure to Cr through the consumption of these tubers in the study area

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