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Dissertations / Theses on the topic 'Effects of potash'

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Published: 2 June 2025

Last updated: 31 July 2025

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1

Nolte, Manuel Enrique. "Effects of alkaline wood ash solutions in improving roughage utilization by ruminants /." The Ohio State University, 1985. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487259580262832.

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2

Fowler, James H. "Effect of plant arrangement and density on growth development and yield of two potato varieties." Thesis, University of Cambridge, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.257946.

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3

Papathanasiou, Fokion. "Glycoalkaloids in potato tubers : developmental and environmental effects." Thesis, Queen's University Belfast, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.361271.

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4

Miklasiewicz, Timothy Joseph. "Effects of vegetational diversity on the potato leafhopper /." The Ohio State University, 1997. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487946776023093.

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5

Kalifa, Ali. "Salt stress, and phosphorus absorption by potato plants cv. 'Russet Burbank'." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp04/mq29727.pdf.

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6

Richardson, Kenneth Vincent Austin. "Abiotic stress effects in potato (Solanum tuberosum L.) and sweet potato (Ipomoea batatas [L.] Lam.)." Thesis, University of Reading, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.312599.

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7

Zhang, Youjun, and 张有君. "Growth promoting effects of AtPAP2 in potato and camelina." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2011. http://hub.hku.hk/bib/B46476945.

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8

Satchithanantham, Sanjayan. "Water management effects on potato production and the environment." American Society of Agricultural and Biological Engineers (ASABE), 2012. http://hdl.handle.net/1993/22279.

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Potatoes (Solanum tuberosum) were grown in a fine sandy loam soil in southern Manitoba in a three-year field study comparing four water management treatments: No Drainage with No Irrigation (NDNI), No Drainage with Overhead Irrigation (NDIR), Free Drainage with Overhead Irrigation (FDIR), and Controlled Drainage with Subirrigation (CDSI). The objectives of the study were (i) to evaluate the effect of the four treatments on yield and quality of potatoes, (ii) to evaluate the effect of water management on the environment, (iii) to estimate the shallow groundwater contribution to potato water req

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9

Al-Farhan, H. N. "The effects of plant growth substances on the yield of potatoes." Thesis, Bangor University, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.234517.

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10

Montambault, François. "The use of Hoe-39866 as a potato-top desiccant /." Thesis, McGill University, 1988. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=61703.

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11

Khrais, Tala. "Evaluation of salt tolerance in potato (Solanum spp.)." Thesis, McGill University, 1996. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=23901.

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This research was carried out to identify salt tolerant potato genotypes in vitro among 131 tetraploid potato cultivars (Solanum tuberosum), 9 diploid simple hybrid clones (4 clones of S. chacoense $ times$ S. tuberosum, 4 clones of S. phureja/S. stenotomum $ times$ S. tuberosum, and 1 clone of S. tuberosum $ times$ S. tuberosum), 1 primitive cultivated diploid S. phureja/S. stenotomum accession, 12 tetraploid complex hybrids, and 13 diploid S. chacoense accessions. Four levels of NaCl (0, 40, 80, and 120 mM) were used. The cultivars, and the simple and complex hybrids were tested for salt tol

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12

Yaku, Alexander. "Effects of intercropping sweet potato on the population density of sweet potato weevil, Cylas formicarius (F.) (Coleoptera:Curculionidae)." Thesis, McGill University, 1992. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=56673.

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Field experiments were conducted during the 1989 dry season (July to December) at the Manggoapi Farm of the Faculty of Agriculture, Cenderawasih University in Manokwari, Irian Jaya, Indonesia. The objectives of the experiments were to determine the effects of four sweet potato cropping systems on the population density of sweet potato weevils (SPW) and on the diversity of other insects within these agroecosystems.<br>Fewer SPW were found in intercropped sweet potato + corn (2 weevils per kg infected tubers), sweet potato + soybean (21 weevils), sweet potato + corn + soybean (8 weevils) than in

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13

Rhodes, D. J. "Effects of fluorescent Pseudomonas sp. on the potato blackleg syndrome." Thesis, Queen's University Belfast, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.374212.

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14

Hogge, Murray Charles. "Effects of site, season and husbandry on yield and processing quality of the potato variety Pentland Dell." Thesis, University of Cambridge, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.330034.

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15

Colenso, Jane Michele. "Effects of potato harvesting practices on skin abrasion and processing quality." Thesis, University of Cambridge, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.302994.

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16

McKenzie, John. "The effects and residues of maleic hydrazide within the potato crop." Thesis, University of Glasgow, 1989. http://theses.gla.ac.uk/2551/.

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This thesis describes the observations of field trials and analytical investigations of the residues of maleic hydrazide (1,2-dihydro-3,6-pyridazinedione) known as MH. MH is marketed in a formulation called `Fazor' and was introduced to the United Kingdom under PSPS (Pesticide Safety Precaution Scheme) in 1985. It is targeted at sprout suppression of ware tubers in store with the added benefits of increased marketable yield and reduced groundkeepers. Two field trials were conducted to investigate the sprout inhibition of MH and its effect on yield. Both field trials used a popular ware seed (c

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17

Bunyolo, A. M. "Effects of fertilizer nitrogen and water supply on growth and yield of the potato crops." Thesis, University of Reading, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.379220.

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18

Rossouw, Jan Adriaan. "Effect of cytokinin and gibberellin on potato tuber dormancy." Diss., Pretoria : [s.n.], 2008. http://upetd.up.ac.za/thesis/available/etd-07302008-164519.

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19

Fragoyiannis, Demetrios A. "Interaction effects between the peach potato aphid Myzus persicae and secondary plant metabolites occurring in potato Solanum tuberosum L." Thesis, University of Edinburgh, 1999. http://hdl.handle.net/1842/28054.

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The aim of this project was to investigate the hypothesis that aphid-infested potato plants produce elevated amounts of the main secondary metabolites that occur in potatoes compared to the amounts produced by non-infested plants. Peach potato aphids <I>Mysuz persicae </I>(Sulzer) (Homoptera: Aphididae) were reared on artificial diets containing the steroidal glycoalkaloids (GAs) α-solanine and α-chaconine in concentrations lower or similar to those observed in potato leaves. The parameters used to measure the aphid performance were the total individual adult cumulative fecundity, diet uptake

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20

Góes, Ana Paula. "The effects of surfactants on the solid substrate fermentation of potato starch." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0021/NQ50175.pdf.

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21

Boyd, Nathan S. "The effects of competition between living mulches and potato (Solanum tuberosum L.)." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ49321.pdf.

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22

Tian, Susan Jane. "Varietal and environmental effects on the physicochemical properties of sweet potato starch." Thesis, University of Nottingham, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.339597.

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23

Harris, P. M. "Tempering the effects of water stress in sugar beet and potato crops." Thesis, University of Reading, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.385139.

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24

Crook, Amanda. "Simulated Glyphosate Drift Effects on 'Red Norland' Commercial and Seed Potato Industries." Thesis, North Dakota State University, 2016. https://hdl.handle.net/10365/28241.

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Field, greenhouse, and laboratory experiments were conducted in 2014 and 2015 to evaluate effects of glyphosate drift on ?Red Norland? potato (Solanum tuberosum L.) grown for commercial and seed industries. Glyphosate drift was simulated by applying sub-lethal doses during the growth stages of tuber initiation (TI), early tuber bulking (EB), and late tuber bulking (LB). Sub-lethal glyphosate doses applied to mother plants had the greatest effect on daughter tubers during TI, resulting in high tuber sets and increased unmarketable tubers. Glyphosate applied to mother plants resulted in residue

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25

Hansford, Rachael J. "Effect of AM colonization on growth and yield in potato." Thesis, University of Aberdeen, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.400721.

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This thesis aims to investigate the effect AM fungal inoculation and subsequent colonisation on the growth and tuber yield of potato. Different AM fungal inocula used produced different responses. Some fungal inocula did not colonise potato roots at all, even in suitable growth substrates (i.e. <i>Glomus fasiculatum</i>). It was observed that <i>Glomus mosseae</i> and Vaminoc T<span style='font-family:Symbol'>â formed the best associations with potato. However, the viability of inocula is a major concern for their commercial use. Phosphate had a significant effect on the growth of potato an

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26

Al-Hagdow, Moftah Moh. "Interactions between sodium and potassium in micropropagated potato cultivars differing in salinity tolerance." Thesis, McGill University, 1998. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=20554.

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The response of in vitro-grown Solanum tuberosum L., cvs. Russet Burbank (RB) (salt-sensitive) and Sierra (S) (salt-tolerant) potatoes was investigated when [NaCl] was increased from 0 to 80 mM in the presence of 6, 20, and 30 mM [K] in a Murashige and Skoog (MS) basal medium. The tested growth parameters, Mg and Ca content, and K+/Na + ratios in the laminae and the roots were negatively affected as [NaCl] increased. The salt stress was relatively severe on growth of RB plants whereas the salt-tolerant (S) variety was affected to a lesser extent. There were indications that Na in the plant may

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27

White, Marcia Diane 1950. "POTATO SEED PIECE CARBAMATE PROTECTANT EFFECTS ON SPROUTING, GROWTH AND YIELD (BENOMYL, MANEB, MANCOZEB)." Thesis, The University of Arizona, 1986. http://hdl.handle.net/10150/276366.

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28

Ibrahim, Razi. "Predicting Potato Yield Loss Due to Metribuzin Sensitivity in North Dakota." Thesis, North Dakota State University, 2018. https://hdl.handle.net/10365/28860.

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A linear-log model to predict yield loss due to metribuzin injury was established by Love et. al. in 1993. Two experiments were conducted in 2016 and 2017 to evaluate and improve this model for application in North Dakota (ND). Metribuzin was applied (1.12 a.i./ha) when potato plants were 20-30 cm tall at Inkster, ND. The model did not accurately predict yield loss in 2016 but performed better in 2017. Foliar injury was more correlated with yield reduction than relative plant height. Results also indicated that new models that used foliar injury at 21 days after treatment (DAT) data and at 7

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29

Brewer, Marin Talbot. "Effects of Biological Control and a Ryegrass Rotation on Rhizoctonia Disease of Potato." Fogler Library, University of Maine, 2003. http://www.library.umaine.edu/theses/pdf/BrewerMT2003.pdf.

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30

Zhang, Yanling 1955. "Development of in vitro bioassays for determination of salinity tolerance in potato (Solanum spp.)." Thesis, McGill University, 1998. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=35659.

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Salinity problems seriously affect agricultural production by reducing crop yield and arable land. The evaluation of potato genotypes (Solanum spp.) for their salinity (NaCl) tolerance in conventional field trials is time consuming and labour intensive. The results are often confounded by many field and environmental variations. In vitro bioassays can overcome some of these difficulties by providing faster, more convenient and dependable methods for screening and selection of salt tolerant potato genotypes. The objective of this research was to develop in vitro bioassay methods for screening a

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31

Mosneaguta, Ruslan. "The effect of chemical preservatives on inhibition of potato browning, volatile organic compounds profile, and microbial inhibition." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1339015151.

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32

Santos, Joana. "Effects of fertility management and natural foliar sprays on late blight (Phytophthora infestans), potato yield and tuber quality in organic potato production systems." Thesis, University of Newcastle Upon Tyne, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.433142.

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33

Grove, Ivan Geoffrey. "The effects of fertilisers, particularly foliar applied, on the potato plant's tolerance of attack by the potato cystnematodes, Globodera rostochiensis and G. pallida." Thesis, Open University, 1999. http://oro.open.ac.uk/54927/.

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Potato cyst nematodes, PCN, cause major yield loss in commercial potato production. One of the mechanisms of yield loss cited is a reduction in the uptake of the major nutrients nitrogen (N), phosphorus (P) and potassium (K). For the work described in this thesis, it was hypothesised that nutrient application via the foliar route could by-pass the PCN-damaged plant root system, ameliorate the PCN-induced nutrient deficits and increase plant yield and tolerance of PCN attack. None of the three nutrients investigated (N, P, K) was individually shown to limit plant growth or yield of PCN-infected

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34

Plotkin, Jeremy Barker. "The Effects of Green Manure Rotation Crops on Soils and Potato Yield and Quality." Fogler Library, University of Maine, 2000. http://www.library.umaine.edu/theses/pdf/PlotkinJB2000.pdf.

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35

Wood, Claire. "Understanding the inhibitory effects of plant-derived isothiocyanates and biofumigation on potato cyst nematodes." Thesis, University of Newcastle upon Tyne, 2018. http://hdl.handle.net/10443/4129.

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Management of potato cyst nematodes (PCN) has become more challenging due to nematicide restrictions. This has led to research into alternative control methods such as biofumigation. Biofumigation exploits the release of toxic isothiocyanates (ITCs) from glucosinolate (GSL) hydrolysis during the breakdown of Brassicaceae plant tissue. The type and concentration of ITCs released varies between plant species. Biofumigation and ITCs have been shown to control soil-borne pathogens however no single ITC achieves broad-range control. The main aim of this study was to determine if biofumigation can b

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36

Campbell, Louise A. "Effects of gender and experience on results of sensory analyses of corn and potato chips /." free to MU campus, to others for purchase, 1997. http://wwwlib.umi.com/cr/mo/fullcit?p9842512.

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37

Chand, Shyam Prakash. "Effect of time of planting of traditional potato varieties on yield of intercropped potato and maize in the hills of Nepal." Thesis, Imperial College London, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.243282.

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38

Wendt, Ellen B. "Comparison of fat free and regular potato chips : taste acceptability and gastrointestinal symptoms in 18-21 year-old female college students." Virtual Press, 2000. http://liblink.bsu.edu/uhtbin/catkey/1178356.

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39

Blessington, Tyann. "The effects of cooking, storage, and ionizing irradiation on carotenoids, antioxidant activity, and phenolics in potato (Solanum tuberosum L.)." Texas A&M University, 2005. http://hdl.handle.net/1969.1/2589.

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Past research conducted by our lab demonstrated that potatoes contain significant levels of phytochemicals important to human health. However, since potatoes are not consumed raw, it is important to determine the effects of processing on these levels. Therefore, the changes in carotenoid content, antioxidant activity, and phenolic content were investigated using combinations of cultivars, cooking methods, storage treatments, and low-dose ionizing irradiation. Carotenoid content was measured via absorbance at 445 nm, 450 nm, and HPLC identification. Antioxidant activity was measured initially a

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40

October, John Reginald Vernon. "Seaweed extract effects on potato (Solanum Tuberosum 'BP1') and grape (Vitis Vinifera Var. Sultana) Production." University of the Western Cape, 2017. http://hdl.handle.net/11394/5938.

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Philosophiae Doctor - PhD (Biodiversity and Conservation Biology)<br>Field trials were conducted to determine the effects of a locally produced seaweed extract product (Afrikelp LG-1), on the growth parameters and yield of Solanum tuberosum 'BP1'potato crop and Vitis vinifera var. sultana grapes. The extrapolation of these results will assist local potato and grape farmers to produce quality crops with improved yields. Field experiments were conducted at the Agricultural Research Council (ARC) Nietvoorbij site in Stellenbosch, South Africa. The experimental layout consisted of four randomi

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41

Skrutvold, Eline. "Effects of storage and heat treatment on metabolism and quality of fresh tomato and potato." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for matematiske fag, 2014. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-25217.

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Potato and tomato are two highly consumed vegetables in Norway as well as throughout the rest of the world, with high consumer demands of sensory and nutritional quality. In addition to being sold fresh, a large use for vegetables are found in processed food for convenient preparation at home. All plant products continue to live and undergo metabolic processes after harvest, and these processes are affected by environmental conditions such as temperature and light as well as processing conditions. This study was designed to address how the nutritional content in tomato and potato change over t

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42

Foukaraki, Sofia. "Storage of potatoes : effects of ethylene and 1-MCP on potato tuber quality and biochemistry." Thesis, Cranfield University, 2012. http://dspace.lib.cranfield.ac.uk/handle/1826/9158.

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Potatoes are widely consumed in UK and many other countries. There is a continuous demand for potatoes all year around both from consumers and retailers such that several postharvest technologies are being used to meet this demand. Sprouting is the main phenomenon affecting both the quality and marketability of potatoes during long term storage. Several sprout suppressants are widely used (e.g. maleic hydrazide and chloropropham), but there are concerns over their toxicity such that alternatives have been sought. Continuous exposure of potato tubers to ethylene (usually 10 µL L- 1 ) during sto

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43

Stevens, Paul Thomas. "Nitrogen Management and the Effects of Compost Tea on Organic Irish Potato and Sweet Corn." Thesis, Virginia Tech, 2008. http://hdl.handle.net/10919/33418.

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Supply and synchronization of plant-available nitrogen (N) to the soil is a major challenge for organic farmers, especially when growing crops in soils that are in transition from conventional to organic systems. This research evaluated the effects of site produced cover crops and application of soil amendments on N uptake and crop yield of organic Irish potato (Solanum tuberosum) and sweet corn (Zea mays). Cover crops were crimson clover (Trifolium incarnatum) and forage radish (Raphanus sativus). Soil amendments included in-row application of commercially produced dehydrated compost tea abso

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44

Ranganna, Byrappa. "Thermal treatments for short-term storage of potato (Solanum tuberosum L.)." Thesis, McGill University, 1996. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=40429.

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The potential of hot water dipping, vapour heating or ultraviolet irradiation to eliminate the use of chemicals for control of sprouting and post-harvest diseases of the potato (Solanum tuberosum L.) was examined. The microorganisms on which these treatments were tested were the fungal dry rot (Fusarium solani) and the bacterial soft rot (Erwinia carotovora pv. carotovora), two major post-harvest pathogens of potatoes. The study focused on short-term storage (three months) at 8$ sp circ$C or 18$ sp circ$C, which are representative of storage temperatures used by producers in northern temperate

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45

Laetsch, Dominik Robert. "On the evolution of effector gene families in potato cyst nematodes." Thesis, University of Edinburgh, 2018. http://hdl.handle.net/1842/31244.

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Potato cyst nematodes (PCN) are economically relevant plant parasites that infect potato crops. The genomes of three PCN species are available and genome data have been generated for several populations of PCN, to address questions related to the molecular basis of plant parasitism. In this thesis, I employ approaches of comparative genomics to highlight differences and similarities between PCNs and other nematode species. I present two new software solutions to address challenges associated with the field of comparative genomics: BlobTools, a taxonomic interrogation toolkit for quality contro

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46

Paiva, Maria João Dias. "Previsão do perigo ambiental de pesticidas e avaliação na água superficial de áreas de batata e cenoura." Master's thesis, ISA, 2008. http://hdl.handle.net/10400.5/579.

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Mestrado em Engenharia Agronómica - Instituto Superior de Agronomia<br>An ecotoxicological characterisation of the potential hazard of the registered pesticides for potato and carrot was made throught modelling. It was evaluated surface water exposure to pesticides and toxic effects to aquatic biota in an agricultural area of the sub-basin South Estuary, where those crops have particular importance. Pesticide analysis in water was performed by solid phase microextraction (SPME) followed by gas chromatography-mass spectrometry (GC-MS). Acute toxic effects were determined by microbiotests on th

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47

Han, Liwen 1964. "Assessment of common scab effects on the development of potato root systems using computed tomography scanning data." Thesis, McGill University, 2007. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=101849.

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The root system is a vital and dynamic part of a plant throughout its lifetime. Its spatial distribution is the consequence of multiple interactions with the surrounding soil medium. In particular, the presence of pathogens in soil may influence the development of the plant, especially the below-ground part, in both its physiology and its structure. Studies of diseased plant roots may take different approaches and investigate disease effects at different levels. In this study, two groups of four potato (Solanum tuberosum L.) plants were grown in middle-sized plastic pots in a greenhouse, and t

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48

Amaya, Urquieta Nadezda Rosa. "Effects of access to information on farmer's market channel choice: The Case of Potato in Tiraque Sub-watershed (Cochabamba - Bolivia)." Thesis, Virginia Tech, 2009. http://hdl.handle.net/10919/36340.

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In Bolivia, potato production and marketing is important for farmersâ livelihoods and anecdotal information shows that cell phones and women are extremely important in the potato marketing chain. Efforts to improve incomes of poor highland potato producers should recognize roles of different actors within the chain and access to market information. This study explores the effects of access to information and gender relations within the potato chain; on farmersâ market channel choice in the Tiraque Watershed (Bolivia). The analysis of qualitative information was useful to deepen the underst

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49

Read, Peter James. "Epidemiology, effects and control of black dot disease of potato caused by the fungus Colletotrichum coccodes." Thesis, Cranfield University, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.359622.

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50

Ahmed, Mamdoh Ewis Esmael. "Detection and effects of latent contamination of potato tubers by soft rot bacteria, and investigations on the effect of hydrogen peroxide on lipopolysaccharides of Erwinia carotovora in relation to acquired resistance against biocides." [S.l.] : [s.n.], 2001. http://webdoc.sub.gwdg.de/diss/2001/ahmed/ahmed.pdf.

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