Effect of three viruses on yield, specific gravity, and chip color of potatoes in Maine

Murphy, H. J.; Goven, M. J.; Merriam, D. C.

doi:10.1007/bf02869563

Cited by 14 publications

(2 citation statements)

References 5 publications

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“…These effects, clearly documented in Table 5, have adverse consequences for human health such as obesity and cardiovascular disease, arising from greater oil retention in processed products such as potato chips and french fries. The anion supplied by KCl intensifies the decline in starch or dry matter content and specific gravity 163 , 238 , 241 – 244 , and becomes a toxicological concern by enhancing the mobility and plant uptake of soil Cd 239 , 240 , 247 . The latter problem has also been reported for cereal crops 208 , 220 , and may thus be of broader interest for contamination of the food chain, particularly in view of recent clinical evidence linking breast cancer to dietary Cd exposure 248 .…”

Section: Resultsmentioning

confidence: 99%

The potassium paradox: Implications for soil fertility, crop production and human health

Khan

Mulvaney

Ellsworth

2013

Renew. Agric. Food Syst.

100

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Intensive fertilizer usage of KCl has been inculcated as a prerequisite for maximizing crop yield and quality, and relies on a soil test for exchangeable K in the plow layer to ensure that soil productivity will not be limited by nutrient depletion. The interpretive value of this soil test was rigorously evaluated by: (1) field sampling to quantify biweekly changes and seasonal trends, (2) characterizing the variability induced by air drying and the dynamic nature of soil K reserves and (3) calculating the K balance in numerous cropping experiments. These evaluations leave no alternative but to question the practical utility of soil K testing because test values cannot account for the highly dynamic interchange between exchangeable and non-exchangeable K, exhibit serious temporal instability with or without air drying and do not differentiate soil K buildup from depletion. The need for routine K fertilization should also be questioned, considering the magnitude and inorganic occurrence of profile reserves, the recycling of K in crop residues and the preferential nature of K uptake. An extensive survey of more than 2100 yield response trials confirmed that KCl fertilization is unlikely to increase crop yield. Contrary to the inculcated perception of KCl as a qualitative commodity, more than 1400 field trials predominately documented a detrimental effect of this fertilizer on the quality of major food, feed and fiber crops, with serious implications for soil productivity and human health.

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Section: Resultsmentioning

confidence: 99%

The potassium paradox: Implications for soil fertility, crop production and human health

Khan

Mulvaney

Ellsworth

2013

Renew. Agric. Food Syst.

100

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“…Hunter and Rich (1964) noticed that sprouts from infected tubers developed more slowly than those from healthy tubers. Murphy et al, (1966) found that fry colour was paler for spindle tuber infected tubers. In addition, they found that the density of tubers from infected plants of cv.…”

Section: Potatomentioning

confidence: 98%

Scientific Opinion on the assessment of the risk of solanaceous pospiviroids for the EU territory and the identification and evaluation of risk management options

2011

EFSA Journal

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Following a request from the EU Commission, the EFSA PLH Panel conducted a risk assessment for the EU territory of pospiviroids affecting solanaceous crops, identified and evaluated risk reduction options and evaluated the EU provisional emergency measures targeting Potato spindle tuber viroid (PSTVd). The risk assessment included PSTVd, Citrus exocortis viroid, Columnea latent viroid, Mexican papita viroid, Tomato apical stunt viroid, Tomato chlorotic dwarf viroid, Tomato planta macho viroid, Chrysanthemum stunt viroid and Pepper chat fruit viroid. Four entry pathways were identified, three involving plant propagation material, with moderate probability of entry, and one involving plant products for human consumption, with low probability of entry. The probability of establishment was considered very high. Spread was considered likely within a crop and moderately likely between crop species, with exception of spread to potato, rated as unlikely. The probability of long distance spread within vegetatively propagated crops was estimated as likely/very likely. The direct consequences were expected to be major in potato and tomato, moderate in pepper, minimal/minor in other vegetables and minimal in ornamentals. Main risk assessment uncertainties derive from limited knowledge on pospiviroids other than PSTVd, although all pospiviroids are expected to have similar biological properties. Management options to reduce risk of entry, spread and consequences were identified and evaluated. No management options can prevent establishment. Examples of successful PSTVd eradication are linked to timely and strict implementation of measures. Uncertainty exists on the effectiveness of risk reduction strategies targeting only one pathway. The EU provisional emergency measures appeared to have significantly reduced PSTVd incidence in Solanum jasminoides and Brugmansia sp., even though eradication from the EU is so far incomplete. The low PSTVd incidence in food crops did not permit to conclude whether the reduction in PSTVd prevalence in ornamentals led to a reduction in outbreaks in food crops.

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The effect of potato virus X on the nitrogenous constituents of potatoes

Chandra

Mondy

1981

Experientia

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Effect of three viruses on yield, specific gravity, and chip color of potatoes in Maine

Cited by 14 publications

References 5 publications

The potassium paradox: Implications for soil fertility, crop production and human health

The potassium paradox: Implications for soil fertility, crop production and human health

Scientific Opinion on the assessment of the risk of solanaceous pospiviroids for the EU territory and the identification and evaluation of risk management options

The effect of potato virus X on the nitrogenous constituents of potatoes

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