Nicosulfuron Tolerance and Population Dynamics of Woolly Cupgrass (Eriochloa Villosa) PDF Download
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Author: Ming-Chung Liu Publisher: ISBN: Category : Languages : en Pages : 214
Book Description
Woolly cupgrass survived nicosulfuron applications by initiating new tillers and because late season germination usually resulted in unsatisfactorily control. Research was initiated to determine the mechanism(s) of woolly cupgrass surviving nicosulfuron and the effects of tillage and preemergence herbicides on woolly cupgrass population dynamics. Woolly cupgrass demonstrated a strong tillering ability. When the first tiller emerged 10 to 12 d after planting, the woolly cupgrass seedling had already initiated 9 tiller buds. The vascular connection between the main stem and tillers was examined and no physical barrier was found that would prevent herbicide translocation. 14C-labled nicosulfuron was detected in the tiller buds 24 h after treatment. Woolly cupgrass tiller emergence following nicosulfuron application was not due to the herbicide restricting the tiller buds. Woolly cupgrass seed reserve was used up before the first tiller emerged, thus the seed reserve did not support the tiller growth.
Author: Ming-Chung Liu Publisher: ISBN: Category : Languages : en Pages : 214
Book Description
Woolly cupgrass survived nicosulfuron applications by initiating new tillers and because late season germination usually resulted in unsatisfactorily control. Research was initiated to determine the mechanism(s) of woolly cupgrass surviving nicosulfuron and the effects of tillage and preemergence herbicides on woolly cupgrass population dynamics. Woolly cupgrass demonstrated a strong tillering ability. When the first tiller emerged 10 to 12 d after planting, the woolly cupgrass seedling had already initiated 9 tiller buds. The vascular connection between the main stem and tillers was examined and no physical barrier was found that would prevent herbicide translocation. 14C-labled nicosulfuron was detected in the tiller buds 24 h after treatment. Woolly cupgrass tiller emergence following nicosulfuron application was not due to the herbicide restricting the tiller buds. Woolly cupgrass seed reserve was used up before the first tiller emerged, thus the seed reserve did not support the tiller growth.
Author: Kriton K. Hatzios Publisher: Springer Science & Business Media ISBN: 9780792346463 Category : Science Languages : en Pages : 404
Book Description
The NATO Advanced Research Workshop (ARW) on "Regulation of Enzymatic Systems Detoxifying Xenobiotics in Plants" intended to provide a forum to scientists from academia, industry, and govemment for discussing and critically assessing recent advances in the field of xenobiotic metabolism in plants and for identifying new directions for future research. Plants function in a chemical environment made up of nutrients and xenobiotics. Xenobiotics (foreign chemicals) are natural or synthetic compounds that can not be utilized by plants for energy-yielding metabolism. Plants may be exposed to xenobiotics either deliberately, due to their use as pesticides or accidentally, from industrial, agricultural, and other uses. Plants, like most other organisms, evolved a remarkable battery or metabolic reactions to defend themselves against the potentially toxic effects of xenobiotics. The main enzymatic reactions utilized by plants for xenobiotic detoxification include oxidation, reduction, hydrolysis and conjugation with glutathione, sugars (e.g., glucose), and amino acids. Eventually, xenobiotic conjugates are converted to insoluble bound residues or to secondary conjugates, which are deposited in the vacuole of plant cells.
Author: Robert Zimdahl Publisher: Academic Press ISBN: 0323149421 Category : Technology & Engineering Languages : en Pages : 465
Book Description
Fundamentals of Weed Science provides an introduction to the basic principles of weed science for undergraduate courses. It discusses several aspects of weed biology and control, and traces the history of herbicide development. The book begins with an introduction to weeds, covering their definition, characteristics, harmful aspects, and the cost of weed control. This is followed chapters on weed classification, the uses of weeds, weed biology, weed ecology, allelopathy, the significance of plant competition, weed management and control methods, and biological weed control. Later chapters deal with herbicidesthe most important weed control tools and the ones with the greatest potential for untoward effects. Students of weed science must understand herbicides and the factors governing their use as well as the potential for misuse. These chapters discuss chemical weed control, the properties and uses of herbicides, factors affecting herbicide performance, herbicide application, herbicide formulation, ecological impact of herbicides, pesticide registration and legislation, weed management systems, and the future of weed science.
Author: Ming-Chung Liu
Author: Ming-Chung Liu
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Author: Iowa State University
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Author: Kriton K. Hatzios
Author: Robert Zimdahl
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