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The Global ETD Search service is a free service for researchers
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Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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Showing 11 to 20 of 945 (0.031 seconds)Spelling suggestions: "subject:"maize"" "subject:"daize""
| 11 |
Impact of Field-Grown Genetically Modified Maize on Native Rhizobacteria / E.W BumunangBumunang, E W January 2013 (has links)
Plant-root interaction occurs in the rhizosphere, a region referred to as a biologically active zone
of soil where microorganisms and plant roots interact. This study examined the impact of
genetically modified (GM) maize (Bt) on functional community of rhizobacteria. Soil samples of
field grown GM and non-GM maize were collected from an experimental field in Delmas, South
Africa, at 30 days after sowing (DAS) and I day after harvest (DAH). Chemical analyses of soil
properties in GM and Non-GM soil samples were performed. Quantitative analysis was achieved
through soil dilution and plate count (colony forming units) using selective and non-selective
media (tryptic soy agar, nutrient agar, Luria Bertani agar and Pseudomonas selective agar).
Qualitative analysis was achieved using analytical profile index identification systems and
sequence data of rhizobacterial isolates. Biolog GN2 microplate was used to compare
community catabolic profile of rhizobacteria in GM and non-GM soils and denaturing gradient
gel electrophoresis technique (DGGE) was used in comparing rhizobacterial community profiles
in GM and non-GM soil samples.
Chemical analyses of GM and non-GM soil samples collected 30 DAS and 1 DAH indicated the
same elements with similar percentages. The pH of GM and non-GM soil samples range from
6.12-7.03, indicating slightly acidic to slightly alkaline soil. Total count of rhizobacteria (cfulg)
in GM and non-GM maize soil samples collected 30 DAS and 1 DAH was not significantly
different in the media. Similar rhizobacterial species from the rhizosphere of both GM and non-
GM maize were identified using analytical profile index and sequence data. No significant
difference was observed in the community catabolic profile among the rhizobacteria in GM and
non-GM soil samples. Cluster analyses of DGGE bands indicated that band patterns of GM and
non-GM samples 30 DAS and 1 DAH were similar to each other. These findings suggest that the
GM maize was not able to alter microbial community and activity and are significant to the
investigation of the impact of GM maize on rhizobacteria. / Thesis (M.Sc. (Biology) North-West University, Mafikeng Campus, 2013
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| 12 |
Variation in the organization of the maize mitochondrial genomeSmall, Ian David January 1987 (has links)
No description available.
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| 13 |
Development of an efficient hammer mill based on energy studies of maize kernel fractureAjayi, O. A. January 1983 (has links)
No description available.
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| 14 |
The mitochondrial genome of the T-cytoplasm of maize (Zea mays)Marsh, D. R. January 1989 (has links)
No description available.
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| 15 |
Effects of temperature on hydraulic conductivity of the roots of Zea maysStephens, J. S. January 1981 (has links)
No description available.
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| 16 |
Entomopathogenic nematodes (Steinernematidae and heterorhabditidae) from KenyaNderito, Waturu Charles January 1998 (has links)
No description available.
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| 17 |
Effect of placement on the utilization of phosphorus by Maize (Zea mais) in Northern GhanaNyamekye, Ambrose Lawrence January 1990 (has links)
No description available.
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| 18 |
The performance of maize (Zea mayz, L.) inbred lines under different moisture and nitrogen levelsBias, Calisto A. L. F. January 2000 (has links)
No description available.
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| 19 |
The badger Meles meles and the wild boar Sus scrofa : distribution and damage to agricultural crops in LuxembourgSchley, Laurent January 2000 (has links)
No description available.
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| 20 |
Agronomic aspects of recent developments in a protein quality maize (Zea mays L.) breeding programFoster, A. M. January 1987 (has links)
No description available.
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