日本落叶松及其杂种无性系间的物候变异与早期选择

doi:10.11707/j.1001-7488.20140708

林业科学 ›› 2014, Vol. 50 ›› Issue (7): 52-57.doi: 10.11707/j.1001-7488.20140708

日本落叶松及其杂种无性系间的物候变异与早期选择

赖猛, 孙晓梅, 张守攻

中国林业科学研究院林业研究所林木遗传育种国家重点实验室北京 100091

收稿日期:2013-09-13 修回日期:2013-12-02 出版日期:2014-07-25 发布日期:2014-07-04
基金资助:
国家“十二五”科技支撑项目“北方针叶树种高世代育种技术研究与示范”（2012BAD01B01）。

Phenological Variation of Larix kaempferi and Its Hybrid Clones and Early Selection

Lai Meng, Sun Xiaomei, Zhang Shougong

State Key Laboratory of Tree Genetics and Breeding Research Institute of Forestry, CAF Beijing 100091

Received:2013-09-13 Revised:2013-12-02 Online:2014-07-25 Published:2014-07-04
Contact: 孙晓梅

摘要/Abstract

摘要：

对造林后2年生75个日本落叶松及其杂种无性系的10个物候期进行连续定株观察及生长量调查，结果表明，以日本落叶松为母本的杂种无性系，在物候期上大多表现出偏母系遗传的特性。通过方差分析研究日本落叶松及其杂种无性系间物候期的变异，通过主成分分析划分无性系的物候群，通过简单相关和典型相关分析确定各物候因子与生长量之间的关系。结果表明：10个物候期无性系间的变异均达极显著水平。根据主成分聚类结果，可将75个无性系分为4个物候型。春季各物候因子与生长量呈微弱的负相关关系，生长后期开始封顶、完全封顶和生长期物候因子与生长量之间呈极显著的正相关关系。侧枝芽开始展叶、顶芽完全展叶、开始封顶和完全封顶这4个因子对7年生材积具有很好的预测能力，在早期选择中可以重点考虑。

关键词: 日本落叶松, 杂种无性系, 物候期, 物候型, 早期选择

Abstract:

In this paper, we investigated phenological phases and measured annual growth of two-year-old seedlings of 75 Larix kaempferi and its hybrid clones after afforestation in Dagujia forest station in Qingyuan County, Liaoning Province. The results showed that the hybrid clones, derived from a cross with L. kaempferi as the female parent, behaved matroclinous inheritance in the phenological phases. Variance analysis was performed for analyzing phenological variation among L. kaempferi and its hybrid clones, principal components analysis was used for phenological type classification of L. kaempferi and its hybrid clones and correlation analysis (simple correlation analysis and canonical correlation analysis) were used to analyze relationship between growth and phenological factors. All the phenological phases were significantly different among clones. The seventy-five clones were divided into four phenological types according to the principal components analysis. There were weak negative correlations between spring phenological factors and growth. Initial apical bud formation at the later stage of growth season, apical bud fully formation, and growth period were strongly positively correlated with growth. Leaf unfolding of branches, leaf full expansion from leader bud, initial apical bud formation and apical bud fully formation could be used well to forecast the performance of volume at age 7, and these phenological factors should be considered seriously in early selection.

Key words: Larix kaempferi, hybrid clone, phenological phase, phenological type, early selection

中图分类号:

S722.3⁺3

赖猛, 孙晓梅, 张守攻. 日本落叶松及其杂种无性系间的物候变异与早期选择[J]. 林业科学, 2014, 50(7): 52-57.

Lai Meng, Sun Xiaomei, Zhang Shougong. Phenological Variation of Larix kaempferi and Its Hybrid Clones and Early Selection[J]. Scientia Silvae Sinicae, 2014, 50(7): 52-57.

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日本落叶松及其杂种无性系间的物候变异与早期选择

Phenological Variation of Larix kaempferi and Its Hybrid Clones and Early Selection

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