ISHS Acta Horticulturae 215: Seed Research in Horticulture
EFFECTS OF TEMPERATURE ON SEED GERMINATION AND SEED DORMANCY IN SORBUS GLABRESCENS CARDOT. |
| Authors: | C.W. Taylor, W.A. Gerrie |
| Abstract:
In a series of laboratory experiments, it was found that fresh seed of S. glabrescens Cardot was dormant and required a period of chilling to germinate. Chilling was equally effective when given to intact berries or isolated seeds on moist filter paper. Twelve weeks at 1°C was the most favorable treatment. Following chilling, seed germination was optimum at 10–15°C. High temperature (25°C) inhibited germination and induced secondary dormancy, and this response appeared to be mediated through the testa and/or endosperm. Practical implications of these results are discussed. | |
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