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Full-Text Articles in Life Sciences
Spatial And Seasonal Variations In Mercury Methylation And Microbial Community Structure In A Historic Mercury Mining Area, Yolo County, California, J. M. Holloway, M. B. Goldhaber, K. M. Scow, Rebecca E. Drenovsky
Spatial And Seasonal Variations In Mercury Methylation And Microbial Community Structure In A Historic Mercury Mining Area, Yolo County, California, J. M. Holloway, M. B. Goldhaber, K. M. Scow, Rebecca E. Drenovsky
Biology
The relationships between soil parent lithology, nutrient concentrations, microbial biomass and community structure were evaluated in soils from a small watershed impacted by historic Hg mining. Upland and wetland soils, stream sediments and tailings were collected and analyzed for nutrients (DOC, SO4=, NO3−), Hg, MeHg, and phospholipid fatty acids (PLFA). Stream sediment was derived from serpentinite, siltstone, volcanic rocks and mineralized serpentine with cinnabar, metacinnabar and other Hg phases. Soils from different parent materials had distinct PLFA biomass and community structures that are related to nutrient concentrations and toxicity effects of trace metals including Hg. The formation of MeHg appears …
Crop Updates 2009 - Weeds, Catherine Borger, Abul Hashem, Mike Clarke, Aik Cheam, Harmohinder Dhammu, Vince Lambert, Chris Roberts, Russell Quartermaine, David Nicholson, Mike Jackson, Bill Campbell, John Moore, Mario D'Antuono, Paul Matson, Peter Newman, Sally Peltzer, Dave Minkey, Stephen B. Powels, Qin Yu, Mechelle Owen, Roberto Busi, Sudheesh Manalil, Leigh Smith, Peter White, Fiona Evans, Pippa Michael, Siew Lee, Rob Grima, Glenn Adam, Trevor Bell, Steve Davies, Glen Riethmuller
Crop Updates 2009 - Weeds, Catherine Borger, Abul Hashem, Mike Clarke, Aik Cheam, Harmohinder Dhammu, Vince Lambert, Chris Roberts, Russell Quartermaine, David Nicholson, Mike Jackson, Bill Campbell, John Moore, Mario D'Antuono, Paul Matson, Peter Newman, Sally Peltzer, Dave Minkey, Stephen B. Powels, Qin Yu, Mechelle Owen, Roberto Busi, Sudheesh Manalil, Leigh Smith, Peter White, Fiona Evans, Pippa Michael, Siew Lee, Rob Grima, Glenn Adam, Trevor Bell, Steve Davies, Glen Riethmuller
Crop Updates
This session covers twenty three papers from different authors:
Herbicides
1. New pre-seeding grass selective herbicides – How well do they work in zero or no-till systems? Dr Catherine Borgerand Dr Abul Hashem, Department of Agriculture and Food
2. Velocity®—An alternate mode of action for the control of wild radish in cereals, Mike Clarke, Bayer Cropscience Pty Ltd, Dr Aik Cheam, Department of Agriculture and Food, Dr Michael Walsh, WAHRI, University of Western Australia
3. Herbicide tolerance of new barley varieties, Harmohinder Dhammu, Vince Lambert, Chris Roberts and Russell Quartermaine, Department of Agriculture and Food
4. Herbicide tolerance of …
Crop Updates 2009 - Weeds, Abul Hashem, Mike Clarke, Aik Cheam, Michael Walsh, Harmohinder Dhammu, Vince Lambert, Chris Roberts, Russell Quartermaine, David Nicholson, Mike Jackson, Bill Campbell, John Moore, Mario D'Antuono, Paul Matson, Peter Newman, Sally Peltzer, Dave Minkey, Stephen B. Powles, Qin Yu, Mechelle Owen, Roberto Busi, Sudheesh Manalil, Leigh Smith, Peter White, Fiona Evans, Art Diggle, Catherine Borger, Pippa Michael, Siew Lee, Rob Grima, Glenn Adam, Trevor Bell, Steve Davies, Glen Riethmuller
Crop Updates 2009 - Weeds, Abul Hashem, Mike Clarke, Aik Cheam, Michael Walsh, Harmohinder Dhammu, Vince Lambert, Chris Roberts, Russell Quartermaine, David Nicholson, Mike Jackson, Bill Campbell, John Moore, Mario D'Antuono, Paul Matson, Peter Newman, Sally Peltzer, Dave Minkey, Stephen B. Powles, Qin Yu, Mechelle Owen, Roberto Busi, Sudheesh Manalil, Leigh Smith, Peter White, Fiona Evans, Art Diggle, Catherine Borger, Pippa Michael, Siew Lee, Rob Grima, Glenn Adam, Trevor Bell, Steve Davies, Glen Riethmuller
Crop Updates
This session covers twenty three papers from different authors:
Herbicides
1. New pre-seeding grass selective herbicides – How well do they work in zero or no-till systems? Dr Catherine Borgerand Dr Abul Hashem, Department of Agriculture and Food
2. Velocity®—An alternate mode of action for the control of wild radish in cereals, Mike Clarke, Bayer Cropscience Pty Ltd, Dr Aik Cheam, Department of Agriculture and Food, Dr Michael Walsh, WAHRI, University of Western Australia
3. Herbicide tolerance of new barley varieties, Harmohinder Dhammu, Vince Lambert, Chris Roberts and Russell Quartermaine, Department of Agriculture and Food
4. Herbicide tolerance of …
Natural Microorganisms’ Effect On The Growth Of Lasthenia Californica In Post‐Fire Soil, Bryce Lindley, Taylor Miller, Tyler Gibson
Natural Microorganisms’ Effect On The Growth Of Lasthenia Californica In Post‐Fire Soil, Bryce Lindley, Taylor Miller, Tyler Gibson
Featured Research
The effect of microorganisms in post‐fire soil on the growth of lasthenia californica was studied by comparing growth in natural soil versus autoclaved soil. It was hypothesized that the seeds from the natural soil would have more growth because the microorganisms have a symbiotic relationship with the plants. Seeds were grown in similar conditions in both autoclaved and natural soil. After 44 days, the plants were uprooted and split into shoots and roots. Shoots and roots were then biomassed. The natural soil had a total shoot biomass of 3.031g and a total root biomass of 89.554g, while the autoclaved soil …