| 马尾松开花结实特征及种子产量预测 |
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| 引用本文： | 孔凡斌. 马尾松开花结实特征及种子产量预测[J]. 林业科学研究, 2002, 15(2): 150-155 |
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| 作者姓名： | 孔凡斌 |
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| 作者单位： | 1.中国林业科学研究院林业研究所,北京100091 |
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| 基金项目： | 林业部“八五”攻关项目“主要造林树种开花结实规律和种子产量预测预报研究”(90 0 10 3) |
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| 摘 要： | 采用标准枝法以及可见半面树冠法研究了马尾松开花时间、球花和果实在树冠的分布特征,采用球果切开法测定球果结籽数量。运用线性回归方法,建立马尾松树体性状、花、果与种子相互之间的预测模型。
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| 关 键 词： | 马尾松 开花结实特征 种子产量 |
| 文章编号： | 1001-1498(2002)02-0150-06 |
| 收稿时间： | 2000-05-27 |
Study on Characteristics of Flowering and Fruiting and Seed Crop Prediction of Masson Pine |
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| KONG Fan bin. Study on Characteristics of Flowering and Fruiting and Seed Crop Prediction of Masson Pine[J]. Forest Research, 2002, 15(2): 150-155 |
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| Authors: | KONG Fan bin |
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| Affiliation: | 1. Research Institute of Forestry, CAF, Beijing 100091, China |
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| Abstract: | The distribution of male cones, female cones, developing cones and mature cones, and hereupon, the ratio of male cones to female cones and the fruit bearing percentage in crown were studied in Zhicheng County of Hubei Province. The number of small female cones on the top of new shoot in early spring was counted. Analysis was made on the relationship between cone crop of a tree and the number of cones in annual sections of the crown and the number of cones in visible crown. It was shown that the number of cones in certain section and the number of visible cones in crown were very informative to the cone crop of a tree. Several ways. including the number of visible cones in crown, the most informative section and the number of immature cones in a tree, were tested to predict cone crop for Masson pine in the county. Joint estimation for regression coefficients of 1991 1993's models were tested. Three stable regression models for cone crop prediction on the basis of female cones, immature cones and mature cones, respectively, were established. |
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| Keywords: | Pinus massoniana characteristics of flowering and fruiting seed crop prediction |
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