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Chapter 6: Pathology

Seeds and seedlings are frequently affected by physical and physiological disorders and the diseases caused by fungi, bacteria, and viruses. Young plants or seedlings are particularly susceptible to a number of diseases because of their tender tissues and because they often have difficulty in establishing themselves. Health and vigor of seedlings and their further growth are to a considerable extent dependent on the quality of seeds. Since seedlings grown from the seeds are the primary source of planting stock and the improved seeds are expensive, it is necessary to investigate the seed and seedling pathogens and, if necessary, apply some control measures either before sowing the seeds or at seedling stage.

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Author(s): R. K. Mittal, S. B. Mathur, K. Old, Z. Q. Yuan

Publication: Tropical Tree Seed Manual

Section: Chapter 6