Tasseling and silking as criteria of comparative earliness in corn
1927
Olson, P.J.
Tasselling and silking appear to furnish a reliable basis for comparing varieties or strains of corn as to earliness. Counts should be made after at least one-fourth of the plants have tasselled or silked and probably need not be made later than the date upon which one-half the plants have reached these stages. Either tasselling or silking may be used as the criterion with apparently equal assurance of accuracy. In this investigation plants were regarded as in tassel as soon as anthers had begun to protrude. Data involving tasselling and silking of course do not give information to the degree of maturity reached by varieties or strains. By comparing such varieties or strains with a standard whose adaptability to the locality is known, however, eliminations may be made early in the season and more detailed data confined to those varieties or strains which show promise.
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