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Testing Techniques: testing techniques.—Seed testing techniques and analysis of agricultural and vegetable seeds, to determine, as nearly as possible, the actual planting value of the seed lot and to be sure of the purity of the seeds, have come to be general practice. Seed laws in many parts of the world specify certain standards that must be met before seeds can be offered for sale. This has resulted in the development of special sampling and testing techniques equipment and prescribed, detailed methods for testing techniques the germination and purity of all types of commercial seeds. An important part of this testing techniques deals with an examination of the seed sample for noxious-weed content and for other impurities, as well as the origin of the seeds, and testing techniques for trueness of variety.
More recently, emphasis is being placed on pathological considerations in seed testing techniques, and procedures are being developed to test the seeds as hosts and carriers of disease organisms. Progress has been made in the standardization of national and international rules for seed testing techniques in the interest of uniformity and of world trade. The responsibility for seed quality is placed upon the individual or firm which grows and markets the seed, but state and federal governments provide the control through special laboratories for seed testing techniques.
In the third phase of testing techniques, the drug is sent to a large selected sample of physicians for the purpose of testing techniques it in practice. From the doctors' reports to the manufacturer, it can be determined how well the drug performed in a large number of patients and whether it offers a real improvement over drugs already available. |
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