| 塞罕坝三种落叶松的物候期观察 |
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| 引用本文： | 张树珊. 塞罕坝三种落叶松的物候期观察[J]. 河北林果研究, 1993, 0(2) |
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| 作者姓名： | 张树珊 |
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| 作者单位： | 河北省塞罕坝机械林场总场 |
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| 摘 要： | 落叶松、黄花落叶松与华北落叶松的物候期,基本接近:花期稳定在5月中旬;球花授精期在5月16～18日之间;种子脱落高峰接近,种仁饱满;叶的生长发育正常;落叶松、黄花落叶松新梢停止生长比华北落叶松晚4～7d,通直且木质化良好,顶芽饱满.说明落叶松、黄花落叶松在塞罕坝物候期正常,生长发育良好,形质好于乡土树种华北落叶松。
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| 关 键 词： | 物候期 华北落叶松 落叶松 黄花落叶松 塞罕坝 |
PHENOLOGICAL OBSERVATIONS OF THREE LARCHES IN SAIHANBA |
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| Zhang Shushan. PHENOLOGICAL OBSERVATIONS OF THREE LARCHES IN SAIHANBA[J]. Hebei Journal of Forestry and Orchard Research, 1993, 0(2) |
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| Authors: | Zhang Shushan |
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| Affiliation: | General Tree Farm of Saihanba Mechanical Tree Farm |
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| Abstract: | The phenologies of Larix principis-rupprechtii, L. gmelini and L. olgensis appear very similar. Flowering of all the three takes place in the second decade of May, and their inseminations in the period of 16 to 18 of May. Seed falling peak time of the three species are also very close. The leaf growth and development of the three are all normal, and their seeds are full. The shoot growth of L. gmelini and L. olgensis ceases 4-7 days later than that of L. principis-ruppr-echtii. For the former two, trunks are stright and lignify well, and their terminal buds are full, which indicate that the growth and development of L. gmelini and L. olgensis are very well here in Saihanba. Besides, the qualities of the two larches are superior to the native species L. principis-rupprechtii. |
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| Keywords: | phenology Larix principis-rupprechtii L. gmelini L. olgensis Saihanba |
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