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Plant Sciences

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Prasanta C. Bhowmik

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Effect Of Surfactants On Bioherbicidal Activity Of Alternaria Helianthi On Multiple-Seeded Cocklebur, Prasanta C. Bhowmik, H. K. Abbas, D. Sanyal Jan 2008

Effect Of Surfactants On Bioherbicidal Activity Of Alternaria Helianthi On Multiple-Seeded Cocklebur, Prasanta C. Bhowmik, H. K. Abbas, D. Sanyal

Prasanta C. Bhowmik

Abstract: Multiple-seeded cocklebur (Xanthium strumarium L.) is a biotype which has different morphology and higher seedling production ability than common cocklebur. Greenhouse studies were conducted to investigate the bioherbicidal activity of Alternaria helianthi (Hansf.) Tubaki and Nishih. on multiple-seeded cocklebur as affected by various rates of Tenkoz COC® (crop oil concentrate), Activator 90® (non-ionic surfactant), BAS 9050 0 S® (methylated oil), Silwet L-77® (organosilicone surfactant) and Top film® (natural based surfactant). Taking X as the recommended rate for each surfactant, 0-X, ¼-X, ½-X, X and 2-X rates were used for each of the surfactants. Surfactants were added to the conidial …


The Biology Of Invasive Alien Plants In Canada. 5. Polygonum Cuspidatum Sieb. & Zucc. [= Fallopia Japonica (Houtt.) Ronse Decr.], Prasanta C. Bhowmik, Antonio Ditommaso, Nishanth Tharayil, Jacob N. Barney Jan 2006

The Biology Of Invasive Alien Plants In Canada. 5. Polygonum Cuspidatum Sieb. & Zucc. [= Fallopia Japonica (Houtt.) Ronse Decr.], Prasanta C. Bhowmik, Antonio Ditommaso, Nishanth Tharayil, Jacob N. Barney

Prasanta C. Bhowmik

Polygonum cuspidatum (Japanese knotweed) is an introduced perennial geophyte in the buckwheat family (Polygonaceae). The phytogeographic distribution of P. cuspidatum in North America suggests a large number of intentional introductions via ornamental plantings from 1870 to 2000, followed by secondary spread from these foci. This species is most pernicious along riparian corridors and road and railroad rights-of-way, reducing visibility, displacing native species, negatively affecting native wildlife, and causing alterations in natural hydrologic processes. Although non-hybrid seed recruitment has not been observed in Europe because of the presence of male-sterile clones only, dispersal of seeds and stem and rhizome fragments by …


Biology And Control Of Common Milkweed, Prasanta C. Bhowmik Jan 1994

Biology And Control Of Common Milkweed, Prasanta C. Bhowmik

Prasanta C. Bhowmik

No abstract provided.