| 杂种落叶松种子生殖特性及早期生长特性研究 |
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| 引用本文： | 蒋丽.杂种落叶松种子生殖特性及早期生长特性研究[J].青海农林科技,2009(4):15-16,33. |
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| 作者姓名： | 蒋丽 |
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| 作者单位： | 大通县林业局,青海,大通,810100 |
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| 摘 要： | 杂种落叶松和其它落叶松种子通过田间对比试验,对发芽率和生长量等指标进行测定,结果表明：杂交落叶松种子千粒重为4.2g,发芽率为28.7%,两年生平均苗高为70.7 cm,平均地径为8.1mm,杂种落叶松和其他纯种落叶松间均存在显著差异。日×长组合发芽率较高,但干形、生长较差。日×兴组合发芽率较低,但干形较好,生长量较大。
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| 关 键 词： | 杂种落叶松 杂种优势 早期测定 生长特性 |
Study on Hybrid Larch in Seed Reproductive Characteristic and Early Growth Performence |
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| JIANG Li.Study on Hybrid Larch in Seed Reproductive Characteristic and Early Growth Performence[J].Science and Technology of Qinghai Agriculture and Forestry,2009(4):15-16,33. |
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| Authors: | JIANG Li |
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| Institution: | JIANG Li (Datong Forestry Bureau, Datong Qinghai 810100,China) |
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| Abstract: | The seed contrast test on hybrid larch and other purebred larch were conducted,germination and growth characteristics were determined,the results showed that 1000-grain weight of hybrid larch was 4.2g,germination was 28.7%,seedling height and ground diameter within 2 years could reach 70.7cm and 8.1mm,there were significant difference between Hybrid and purebred larch.germination of Japanese×Korean was higher,but stem form and growth were worse,germination of Japanese×Chinese was lower,but stem form and growth were worse, germination of Japanese × Chinese was lower, but stem form and growth were better. |
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| Keywords: | Hybrid larch Hybrid vigor Early test Growth performance |
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