Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 17 of 17 for “"potato cultivars"”.
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Evaluation of yield and quality of five potato cultivars grown in Southwest Virginia
Potato (Solanum tuberosum L.) cultivars Atlantic, BelRus, Kennebec, Superior, and Yukon Gold, grown at six locations in Southwest Virginia, were analyzed for yield, percent dry weight, specific gravity, soluble protein, and ascorbic acid. Thereafter. tubers were cold stored at 3 C for six weeks, …
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Strategies to Increase Andean Potato Cultivation and Preservation in Ecuador
Andean potato cultivars, a staple crop for diets and agriculture in the Andes, are declining largely due to lack of public interest and consumer demand, posing socio-economic and environmental challenges. Potato is native to the South American Andes, where farmers have, for millennia, selected …
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Nuclear magnetic relaxation studies of the hydration properties of potato starch and beef heart surimi analogs in relation to functionality in foods
… properties of native and heat processed potato and cereal starches were determined by combining results obtained by oxygen-17, deuterium and proton nuclear magnetic resonance (NMR) techniques. Several waxy and mealy potato cultivars were selected for these studies: LaSoda and Pontiac …
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Genetic engineering for pest resistance in potato (Solanum tuberosum L.)
Insect pests of potato cause significant losses of yields under field and storage conditions. Conventional breeding techniques for targeting genes of interest is usually laborious and time-consuming. An alternative way for targeting genes of interest into the plant genome consists of …
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Investigating Management Alternatives for Southern Blight on Vegetables in the mid-Atlantic United States
… to 1) evaluate the effect of planting date and potato (Solanum tuberosum L.) cultivar selection on southern blight incidence and tuber yield and quality; 2) compare potato cultivar tuber susceptibility to S. rolfsii in post-harvest settings; and 3) assess the suitability of six cool-season cover …
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Interactions between basic and applied research:the example of research leading to multiple disease resistant potato cultivar development
… the development of multiple disease resistant potato cultivars, and to examine the changing roles and interactions between public research institutions and private industry. Given the existing budgetary constraints and the increasing demands for accountability that research administrators and …
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Factors influencing the post-harvest quality and consumer preference of sweet potato and other products in sub-Saharan Africa
The first theme covers sweetpotato in the marketing chain from farm to consumer. In East Africa, research explored ways of improving the handling and transport of sweetpotato, shelf life and storage of fresh roots on the farms to increase incomes and food security. Transport and handling were …
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Investigation of the recognition and host target of the Phytophthora infestans effector PiAVR2
… this avirulence protein is recognised by the potato resistance protein, R2. Prior to this PhD, forward genetic studies identified three RXLR effector encoding genes within the AVR2 locus. By use of transient co-expression with the resistance gene R2 it was determined which of these genes was …
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Effects of topping, stem density, and stage of vine cutting on canopy growth and tuber yield yield of potato (Solanum tuberosum L.)
Seed tubers of ‘Yukon Gold’ potato (Solanum tuberosum L.) exhibit strong apical dominance, resulting in low stem density after planting. After emergence, the terminal buds reimpose apical dominance on the rest of the canopy leading to production of few secondary branches. Therefore, several …
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Assessment of methods to screen for carotenoids in yellow-fleshed potato germplasm
… to identify carotenoids in yellow-fleshed potato germplasm (N = 60) from the Colorado Potato Breeding and Selection Program. The specific aim eventually is to improve selection efficiency and accelerate genetic gain in nutritional quality of potato cultivars. Phenotypic tuber flesh color …
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Pectic methyl and non-methyl esters and the environmental implications of methanol emissions from plants
… non-methyl ester groups and the deterioration of potato tuber texture during the period of storage following harvest was explored in two potato cultivars using titrimetric techniques and atomic absorption spectrometry. Pectic methyl ester groups in plant material are a major reservoir of methanol …
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Dissecting the Transcriptional Regulatory Network Underlying Plant Wound Suberin Biosynthesis
Between 20-40% of cultivated potatoes are lost during storage equating to approximately $1.2 billion in lost potential revenue each year. Wounding during mechanical harvesting and post-harvest handling results in tuber desiccation and provides an entry point for pathogens. Poor wound healing is the …
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Study on the processing technology of iced roasted sweet potato and its sensory characteristics and nutritional peculiarities
Nowadays, fresh sweet potato is greatly influenced by seasonality and unable to be consumed all year. The roast sweet potato in market is usually made by personal, so the quality, safety and nutrition cannot be guaranteed effectively. In addition, roasted sweet potato is hard to storage and has a …
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Soil microbial community dynamics associated with agricultural crops
… and a controlled experiment on their effects on potato cultivars in post-harvest storage. The objective of these studies was to understand how specific fungal-fungal and fungal-plant interactions are important in a potato production system where the functional aspects of a specific microbial …
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Performance of Nguni goats supplemented with sweet potato vines
… crop residues like banana leaves, cassava, sweet potato vines and other indigenous crop residues not exploited may be used as a cheaper source of feed supplement. More rural emerging farmers in Northern KZN communities seem to be farming sweet potatoes which implies that the vines could be …