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A field trial to compare the non-chemical weed management approach in dry direct seeded fine rice with the chemical methods was conducted at the Agronomic Research Farm, University of Agriculture, Faisalabad during Kharif, 2009. The experiment was laid out in randomized complete block design (RCBD) with four replications. Results revealed that manual weeding recorded maximum (99 %) reduction in total weed density and dry weight. Nominee 100SC suppressed weed density and dry weight by >75% over control. Among non-chemical weed management strategies, soil incorporation of sorghum residues at 8...

Mental retardation or intellectual disability affects about 3% of the general population. One half of it is attributed to genetic factors and is therefore inheritable. Genetic basis of mental retardation is poorly understood. However information revealed from the human genome project has enabled to analyze the genetic determinants that have causative role in the onset of the disease. This book provides a compendium of basic information on the genetic factors that lead to this disability, methodology to screen the causative genetic defects and identification of new causative determinates. This...