Portable Punched Cards for Recording Tree Fruit Evaluations
DOI:
https://doi.org/10.71318/apom.1974.28.1.2Abstract
In 1961 portable punched cards, previously used by cotton investigators, were adapted to collection of data on stone fruit seedlings in the field (1). In subsequent years, several refinements in the format and content of the card have been added until a very usable, if not ideal, data collection system has evolved. With relatively minor changes, these cards could be adapted to evaluating many horticultural crops.
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