Use of the environmental impact quotient to estimate impacts of pesticide usage in three Peruvian potato production areas.

This report presents the result of a survey to evaluate the use of crop protection chemicals (pesticides – HCBVTV) in rice-growing areas with dyke, semi-dyke and no embankment based on interview result with 112 interviewers such as farmers, agricultural specialists, and pesticide dealers in Thap Muoi District, Dong Thap Province and pesticide usage data recorded by three selected framers in 3 different dyke systems. It showed that dyke practice affects the use of pesticides of farmers. After dykes constructed, the pesticides used were more diverse, with higher dosage compared to before having embankments. The report also evaluates the risk of using pesticides through Environmental Impact Quotient (EIQ) index. It showed that areas with dyke and semi-dyke have much higher EIQ index than areas without embankment, 167, 145 and 54, respectively.

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Prevalence and strain composition of potato virus Y circulating in potato fields in China’s north-central province Shanxi

Plant Disease ◽

10.1094/pdis-09-21-1950-re ◽

2021 ◽

Author(s):

Pengcheng Ding ◽

Dexin Chen ◽

Haixu Feng ◽

Jiao Li ◽

Hui Cao ◽

...

Keyword(s):

Potato Virus ◽

Potato Virus Y ◽

Potato Production ◽

Central China ◽

Shanxi Province ◽

Rt Pcr ◽

Potato Leaf ◽

Single Strain ◽

North Central ◽

Production Areas

Potato is an important crop in Shanxi province located in north-central China. During 2019-2020, 319 potato leaf samples were collected from eight locations distributed in three major potato production areas in Shanxi. Bio-chip detection kit revealed the presence of several potato viruses, and among them potato virus Y (PVY) was the most common one, reaching the incidence of 87.8% of all symptomatic samples. The immuno-captured multiplex reverse transcription (RT)-PCR was used to identify strains for all 280 PVY-positive samples, unveiling 242 samples infected with a single strain of PVY (86.4%) and 38 (13.6%) with a mixed infection. Of samples with a single-strain infection, PVY -SYR-II accounted for 102 (42.1%), followed by PVYN-Wi (33, 13.6%) , PVY -SYR-I (28, 11.6%), 261-4 (22, 9.1%), PVYNTNa (20, 8.3%), PVYNTNb (19, 7.9%), and PVY -SYR-III (18, 7.4%). Seven isolates representing different recombinants were selected for whole genome sequencing. Phylogenetic and recombination analyses confirmed the RT-PCR based strain typing for all seven strains of PVY found in Shanxi. SXKL-12 is the first SYR-III strain from potato reported from China. However, unlike that in other known SYR-III isolates, the region positioned from 1,764 to1,902 nt in SXKL-12 shared the highest sequence identity of 82.2% with an uncharacterized PVY isolate, JL-23, from China. Interestingly, the PVYN-Wi isolate SXZY-40 also possessed a more divergent sequence for the region positioned from 6,156 to 6,276 nt than other N-Wi isolates known to date, sharing the highest identity of 86.6% with an uncharacterized Chinese PVY isolate, JL-11. Pathogenicity analysis of dominant strains PVY -SYR-II and PVYN-Wi in six local popular potato cultivars revealed that Kexin 13, Helan 15 and Jizhangshu 12 were susceptible to these two strains with mild mottling or mosaic symptoms expression, while three cultivars, Jinshu 16, Qingshu 9, Xisen 6 were found fully resistant.

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Genomic reconstruction of the introduction and diversification of golden potato cyst nematode populations in Indonesia

Phytopathology ◽

10.1094/phyto-04-21-0150-r ◽

2021 ◽

Author(s):

Nurul Dwi Handayani ◽

Prabowo Lestari ◽

Wouter Van As ◽

Martijn Holterman ◽

Sven Van den Elsen ◽

...

Keyword(s):

Phylogenetic Trees ◽

18Th Century ◽

Gene Families ◽

Potato Production ◽

Innate Immune ◽

Sequencing Data ◽

Cyst Nematodes ◽

Selective Pressures ◽

Production Areas ◽

Venom Allergen

Potato cyst nematodes (PCN), the umbrella term for Globodera rostochiensis and G. pallida, co-evolved with their Solanaceous hosts in the Andeans. From there, PCN proliferated worldwide to virtually all potato production areas. PCN is a major factor limiting the potato production in Indonesia. In our survey, only G. rostochiensis was found. Fourteen field populations were collected on Java and Sumatra, and unique variants were called by mapping re-sequencing data on a G. rostochiensis reference genome. A phylogenetic tree based on 1.4 million unique variants showed a genotypic separation between the outgroup, a Scottish Ro1 population, and all Indonesian populations. This separation was comparable in size to the genotypic distinction between the Javanese and the Sumatran PCN populations. Next, variants within PCN effector gene families SPRYSEC, 1106, 4D06, and venom allergen-like protein (VAL) that all interfere with the host innate immune system were compared. Distinct selective pressures acted on these effector families; while SPRYSECs (4,341 SNPs/indels) behaved like neutral genes, the phylogenetic trees of 1106, 4D06 and VAL proteins (respectively 235, 790 and 150 SNPs/indels) showed deviating topologies. Our data suggest that PCN was introduced on Java not too long after the introduction of potato in the middle of the 18th century. Soon thereafter, the pathogen established on Sumatra, and started to diversify independently. This scenario was corroborated by diversification patterns of the effector families 1106, 4D06 and VAL. Our data demonstrate how genome re-sequencing data from a non-indigenous pathogen can be used to reconstruct the introduction and diversification process.

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Global mapping of cost‐effective microalgal biofuel production areas with minimal environmental impact

GCB Bioenergy ◽

10.1111/gcbb.12619 ◽

2019 ◽

Vol 11 (8) ◽

pp. 914-929 ◽

Cited By ~ 5

Author(s):

Diego F. Correa ◽

Hawthorne L. Beyer ◽

Hugh P. Possingham ◽

Skye R. Thomas‐Hall ◽

Peer M. Schenk

Keyword(s):

Environmental Impact ◽

Cost Effective ◽

Biofuel Production ◽

Global Mapping ◽

Minimal Environmental Impact ◽

Production Areas

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The Effect of Energy Cost Changes on the U.S. Potato Industry

Journal of the Northeastern Agricultural Economics Council ◽

10.1017/s0163548400003447 ◽

1982 ◽

Vol 11 (2) ◽

pp. 119-126 ◽

Cited By ~ 1

Author(s):

Richard P. Beilock ◽

James W. Dunn

Keyword(s):

World War Ii ◽

Potato Production ◽

Potato Industry ◽

Energy Prices ◽

Long Run ◽

Production And Consumption ◽

Production Areas ◽

Processed Potatoes ◽

Cultivation Techniques ◽

The U.S

Since World War II U.S. Agriculture has seen regional shifts and greater concentration in the production of certain commodities. Technological and infrastructural developments in irrigation, plant varieties, cultivation techniques, transportation, storage, and processing have lowered the barriers of time and space, thus allowing remote regions to compete with and even dominate the traditional production areas. The U.S. potato industry offers an excellent example of this. Processed potatoes have become the dominant food use form and production has shifted westward and become more concentrated both with respect to time and location. In 1947, 44 percent of U.S. potato production was in the seven largest potato states for the fall crop, 35 percent was produced in the nonfall crops, and eight percent was processed. By 1978, 75 percent was produced by the seven leading states for the fall crop, 14 percent in the early nonfall crops, and 59 percent was processed. Because many of these changes involved the adoption of relatively energy intensive techniques, the existence of low and fairly stable energy prices until 1973 aided this change. The increases in energy costs since 1973 raise questions about the long-run stability of recent patterns of production and consumption.

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Glyphosate: environmental fate and impact

Weed Science ◽

10.1017/wsc.2019.28 ◽

2020 ◽

Vol 68 (3) ◽

pp. 201-207 ◽

Cited By ~ 3

Author(s):

Stephen O. Duke

Keyword(s):

Environmental Impact ◽

Weed Management ◽

Carbon Dioxide Emissions ◽

Plant Pathogens ◽

Water Solubility ◽

Environmental Fate ◽

High Water ◽

Microbial Product ◽

Herbicide Alternatives ◽

Environmental Impact Quotient

AbstractGlyphosate is the most used herbicide worldwide, which has contributed to concerns about its environmental impact. Compared with most other herbicides, glyphosate has a half-life in soil and water that is relatively short (averaging about 30 d in temperate climates), mostly due to microbial degradation. Its primary microbial product, aminomethylphosphonic acid, is slightly more persistent than glyphosate. In soil, glyphosate is virtually biologically inactive due to its strong binding to soil components. Glyphosate does not bioaccumulate in organisms, largely due to its high water solubility. Glyphosate-resistant crops have greatly facilitated reduced-tillage agriculture, thereby reducing soil loss, soil compaction, carbon dioxide emissions, and fossil fuel use. Agricultural economists have projected that loss of glyphosate would result in increased cropping area, some gained by deforestation, and an increase in environmental impact quotient of weed management. Some drift doses of glyphosate to non-target plants can cause increased plant growth (hormesis) and/or increased susceptibility to plant pathogens, although these non-target effects are not well documented. The preponderance of evidence confirms that glyphosate does not harm plants by interfering with mineral nutrition and that it has no agriculturally significant effects on soil microbiota. Glyphosate has a lower environmental impact quotient than most synthetic herbicide alternatives.

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Environmental impact of potato cultivation on plantations covering areas of various sizes

E3S Web of Conferences ◽

10.1051/e3sconf/201913202002 ◽

2019 ◽

Vol 132 ◽

pp. 02002

Author(s):

Zbigniew Kowalczyk

Keyword(s):

Comparative Analysis ◽

Environmental Impact ◽

Natural Environment ◽

Potato Production ◽

The South ◽

Environmental Correlations ◽

Seed Potatoes ◽

Cradle To Gate ◽

Inputs And Outputs

The paper contains a comparative analysis of technologies used for potato production on plantations covering areas of various sizes in the context of their impact on the natural environment. The research was conducted for potato plantations in the south of Poland. For its purposes, the “cradle-to-gate” approach was adopted. The type of technological practices applied were taken into account, as well as machines used, duration of their operation, number of seed potatoes, fertilisers, pesticides, used fuel and water. The final results were referred to the area of cultivation (1 ha). In order to determine the environmental correlations of all the inputs and outputs included in the LCA research and estimate their impact on the environment, the SimaPro application was used, ver. 8.1.0.60. It was, for instance, found that the cultivation of potatoes on smaller plantations affects the natural environment more adversely.

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