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Effects Of Nozzle Type And Carrier Application On The Control Of Leaf Spot Diseases Of Soybean, H. Mark Hanna, Alison E. Robertson, W. Mark Carlton, Robert E. Wolf Jan 2006

Effects Of Nozzle Type And Carrier Application On The Control Of Leaf Spot Diseases Of Soybean, H. Mark Hanna, Alison E. Robertson, W. Mark Carlton, Robert E. Wolf

Agricultural and Biosystems Engineering Conference Proceedings and Presentations

Midwestern soybean growers seek information on effective application of foliar fungicides that do not translocate throughout the plant. Field application treatments included using a two-orifice nozzle tip producing fine droplets at 187 l/ha (20 gal/ac) and 112 l/ha (12 gal/ac) and a single-orifice nozzle tip producing a coarse droplet size more typical of herbicide applications at 168 l/ha (18 gal/ac). In addition an air-assisted sprayer was used at one of the two sites of the trials. Measurements included droplet size, droplet coverage, and foliar disease severity in the top, middle, and lower parts of ...


Studies On Seed Colouring In Soybean And Tomato, Vilas A. Tonapi, P. Harinath Babu, S. Varanavasiappan, Ch Ravinder Reddy, Shrishail S. Navi, N. Seetharama Jan 2006

Studies On Seed Colouring In Soybean And Tomato, Vilas A. Tonapi, P. Harinath Babu, S. Varanavasiappan, Ch Ravinder Reddy, Shrishail S. Navi, N. Seetharama

Plant Pathology and Microbiology Publications

The effects of seed colouring using 25 dyes (i.e. 20 chemical and 5 natural dyes) on the quality of soyabean (cv. JS 335) and tomato (cv. Pusa Ruby) seeds were studied in the laboratory. Data were recorded for seed germination percentage, root and shoot length, whole seedling length, dry weight of seedling, vigour index, speed of germination and electrical conductivity. Rhodamine-B, Fast green and Malachite green for soyabean and Rhodamine-B and Fast green for tomato were the best dyes for seed colouring.


Light Is Essential For Degradation Of Ribulose-1,5-Bisphosphate Carboxylase-Oxygenase Large Subunit During Sudden Death Syndrome Development In Soybean, J. Ji, M. P. Scott, M. K. Bhattacharyya Jan 2006

Light Is Essential For Degradation Of Ribulose-1,5-Bisphosphate Carboxylase-Oxygenase Large Subunit During Sudden Death Syndrome Development In Soybean, J. Ji, M. P. Scott, M. K. Bhattacharyya

Agronomy Publications

Fusarium solani f. sp. glycines (Fsg) has been reported to produce at least two phytotoxins. Cell-free Fsg culture filtrates containing phytotoxins have been shown to develop foliar sudden death syndrome (SDS) in soybean. We have investigated the changes in protein profiles of diseased leaves caused by cell-free Fsg culture filtrates prepared from Fsg isolates. Two-dimensional sodium dodecyl sulfate-polyacrylamide gel electrophoresis (PAGE) was conducted to investigate the protein profiles of diseased and healthy leaves. An approximately 55 kDa protein was found to be absent in diseased leaves. Matrix-assisted laser desorption-ionization time-of-flight mass spectrometric analyses and a database search revealed that the ...