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 12 of 12 for “"nightshade"”.
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The Evolution of Male Form and Function in Nightshade Flowers
The overall objective of this study is to investigate the diversity of anther form (male floral organs) in the genus Solanum to allow greater understanding of the relationship between anther form and buzz pollination. This project takes a multidisciplinary approach to investigating the anther …
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Competition for Nitrogen Between Eastern Black Nightshade and Fresh Market Tomatoes
… was conducted to differentiate how eastern black nightshade (Solanum ptycanthum) (SOLPT) and tomato ( Lycopersicon esculentum) differ in nitrogen (N) utilization, and to determine if N fertilization in a tomato crop can be altered to control weedy SOLPT. Greenhouse hydroponics and field studies …
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Effects of Reduced Irradiance on the Biology of Eastern Black Nightshade (Solanum Ptycanthum)
Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1986.
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The environmental physiology of tomato (Lycopersicon esculentum Mill. cv. Heinz-6004) and black or eastern black nightshade (Solanum nigrum L. and Solanum ptycanthum Dun.) competition
The growth of the black and eastern black nightshade was analyzed and predictive models were developed. Black and eastern black nightshade were planted on June 3, June 23, and July 12 in 1988 and May 28, June 17, and July 10 in 1989. All plantings were harvested 20, 40, and 60 days after planting, …
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Bio-ecological studies of Tuta absoluta in Sudan
… lycopersicum ), eggplant (S. melongena ), black nightshade (S. nigrum ) and gubbain (S. dibium Fr.). The T. absoluta highest infestation level was on tomato, followed by eggplant, gubbain and black nightshade. Six hymenopteran parasitoids and two predatory species were found at the surveyed …
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Weed Management Programs in Potato, Transplanted Tomato and Transplanted Pepper with Rimsulfuron and Other Herbicides
… untreated controls. In the greenhouse, black nightshade control was below 23% and jimsonweed control was below 49% by rimsulfuron POST. The absorption, translocation, and metabolism of rimsulfuron was investigated in three Solanaceous weed species. Rimsulfuron uptake did not differ between …
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A biophysical and economic evaluation of biological and chemical control methods for Solanum elaegnifolium (Silverleaf Nightshade) in the Limpopo province, South Africa
The results showed that the difference in the weed density was insignificant, indicating that biological and chemical control were both effective in the management of S. elaeagnifolium. However biological control was shown to be more economically beneficial than chemical control, since there was a …
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Biology and Control of Eastern Black Nightshade, Palmer Amaranth, and Common Pokeweed, in No-Till Systems on the Eastern Shore Regions of Virginia and Maryland
Eastern black nightshade, Palmer amaranth, and common pokeweed are three hard to control weed species on the Eastern Shore regions of Virginia and Maryland. Herbicide resistance and lack of herbicide efficacy further complicate the job of controlling these weeds. Studies were conducted on each of …
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Characterization of acifluorfen selectivity mechanisms in tomato and related Lycopersicon species
… esculentum) genotypes, Eastern Black nightshade, and 35 wild Lycopersicon accessions were screened for tolerance to acifluorfen. Response to acifluorfen was not species specific, but in general, the cultivated tomato varieties were slightly more tolerant than the wild accessions. From …
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Composted dairy manure and arbuscular mycorrhizae influence on weed competition and potato yield
… (CHEAL), giant foxtail (SETFA), and hairy nightshade (SOLSA). In the fall, one hundred seeds of each weed species from each of the composted field plots were buried to a 5-cm depth in the weed-free plots of each compost rate to measure mortality. Seed bags were removed 9 months after …
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Herbicide combinations for establishing no-till soybeans (Glycine max) with an emphasis on the use of chlorimuron
… weed control, especially of eastern black nightshade (Solanum ptycanthum Dun.). In double-crop experiments over 4 years including 10 experimental sites and 8 different weeds, chlorimuron plus linuron provided good control of vegetation at planting and residual weed control without …
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Tetrahydroisoquinoline Neurotoxins in Parkinson Disease
… gourd (Cucurbitaceae), carrot (Apiaceae) and nightshade (Solanaceae) families were found to be highly consumed in both normal human and PD groups, and to concentrate several potentially neurotoxic TIQ derivatives.</p> <p>We correlated indices of cellular energy production and cell viability in …