Dormancy breaking in Cornus sanguinea seeds
Thermal conditions to break dormancy were studied in seeds of Cornus sanguinea L. Seeds were (1) warm stratified at 20/30°C for 6, 9 or 12 weeks, (2) cold stratified at 3°C for 6, 9, 12 or 17 weeks and (3) given the following cold + warm combinations: 6W + 6C, 6W + 9C, 6W + 12C, 9W + 6C, 9W + 9C, 9W + 12C, 12W + 6C, 12W + 9C or 12W + 12C. Maximum germination (94%) was attained after 17 weeks of cold stratification without warm treatment. Cold stratifying seeds for 9 and 12 weeks following a warm period of 12 weeks increased germination to 71% and 81% respectively. The warm phase of the treatment was necessary for the degradation of the stony endocarp.
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Document Type: Research Article
Publication date: April 1, 2004
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