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油松等供试种子在室内密封干藏条件下,原种子含水量越高,其发芽率越低,1—2年内,保存合格种子的最佳安全含水量分别刊为:油松7％,落叶松6.1—8.5％、侧柏8.6％,海棠8％。同时,供试种子发芽率还随贮藏年限的延长,呈现最佳安全含水量渐低的趋势。为保存合格的种子,油松4—5年内最佳安全含水量为6—5％,落叶松(4年)7—6％,侧柏(6年)7—5％,海棠(6年)2.4％。
Pinus tabulaeformis seed under the conditions of indoor sealed dry storage, the higher the original seed moisture content, the lower the germination rate, 1-2 years, the best safe moisture content of qualified seeds were published as: Pinus tabulaeformis 7% 6.1-8.5% larch, arborvitae 8.6%, Begonia 8%. At the same time, the seed germination rate also increased with the storage life, showing the trend of the lowest safe water content. In order to preserve the qualified seeds, the best safe water content in Pinus tabulaeformis 4-5 years is 6-5%, larch (4 years) 7-6%, Platycladus orientalis (6 years) 7-5%, Begonia (6 years) 2.4%.