By Robert K.D. Peterson, Leon G. Higley
Realizing biotic rigidity and plant yield enables the sensible improvement of monetary choice making, an instrumental a part of built-in Pest administration. and extra, the influence of biotic harm on plant yield bears without delay at the easy organic questions of inhabitants dynamics, lifestyles background techniques, neighborhood constitution, plant-stressor coevolution, and surroundings nutrient biking. Biotic tension and Yield Loss is a complete overview of the newest conclusions of yield loss in entomology, weed technology, and plant pathology, combining cutting-edge conception with winning applications.This ebook is exclusive in that it's the first to hide all biotic stressors, bugs, weeds, and plant pathogens, and their influence on plant yield and health. It makes a speciality of present wisdom of yield and health loss in either typical and agricultural ecosystems and on a physiologically dependent method of supply a typical foundation for contemplating and discussing biotic tension. by means of contemplating biotic tension in the context of plant ecophysiology, Biotic rigidity and Yield Loss makes an attempt to raise wisdom of biotic rigidity to an analogous point as abiotic pressure and makes an issue for integrating the 2 sorts of tension.
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Additional resources for Biotic Stress and Yield Loss
Econ. , 88, 1401, 1995. 67. Welter, S. , and Farnham, D. , Recovery of ‘Zinfandel’ grapevines from feeding damage by Willamette spider mite (Acari: Tetranychidae): implications for economic injury level studies in perennial crops, Environ. , 20, 104, 1991. 68. Jones, V. , Toscano, N. , Johnson, M. , Welter, S. , and Youngman, R. , Pesticide effects on plant physiology: integration into a pest management program, Bull. Entomol. Soc. , 32, 103, 1986. 69. Ferree, D.
Haile’s findings are consistent with a growing body of other research on soybean defoliation. The following example is based on calculations with absolute yield, but similar calculations can be made for proportional yield. In the following equations, a1, b1 and a2, b2 are linear regression parameters. PAR refers to intercepted PAR after defoliation, and LAI refers to the LAI of plants after defoliation. 2] PARϭ (YLD-a1)/b1, and LAI ϭ (PAR-a2)/b2; combining the two previous equations yields LAI ϭ (((YLD-a1)/b1)-a2)/b2.
Econ. , 87, 465, 1994. 8. Bode, W. , and Calvin, D. , Yield-loss relationships and economic injury levels for European corn borer (Lepidoptera: Pyralidae) populations infesting Pennsylvania field corn, J. Econ. , 83, 1595, 1990. 9. Byers, R. , and Calvin, D. , Economic injury levels to field corn from slug (Stylommatophora: Agrolimacidae) feeding, J. Econ. , 87, 1345, 1994. 10. Vail, K. , Kok, L. , Broccoli yield response to selected levels of cabbage looper (Lepidoptera: Noctuidae) larvae in southwestern Virginia, J.