| 日本落叶松育种资源物候变异分析 |
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| 引用本文： | 杜超群,解平书,许业洲.日本落叶松育种资源物候变异分析[J].湖北林业科技,2020,49(3):14-16. |
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| 作者姓名： | 杜超群 解平书 许业洲 |
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| 作者单位： | 湖北省林业科学研究院 武汉430075,建始县国有高岩子林场 恩施445300,湖北省林业科学研究院 武汉430075 |
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| 摘 要： | 以鄂西亚高山区日本落叶松二代优树嫁接无性系为对象,通过物候观察和生长量测定,分析无性系间的物候变异及其与生长量的关系,为育种材料的进一步选择提供依据。结果表明:该区域日本落叶松主梢生长期平均为217.6 d,侧枝生长期平均为216 d,各系号间物候期存在明显分化,生长量的变异程度更大,变异系数分别为32.55%和33.21%;生长期与生长量相关分析发现,二者之间存在显著的正相关,相关系数为0.150~0.730,物候期对生长量有较好的预测能力。
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| 关 键 词： | 日本落叶松 物候期 遗传变异 |
Analysis of Phenological Variation in Larix kaempferi Breeding Resources |
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| Du Chaoqun,Xie Pingshu,Xu Yezhou.Analysis of Phenological Variation in Larix kaempferi Breeding Resources[J].Hubei Forestry Science and Technology,2020,49(3):14-16. |
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| Authors: | Du Chaoqun Xie Pingshu Xu Yezhou |
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| Institution: | (Hubei Academy of Forestry, Wuhan 430075;Jianshi County State-owned Gaoyanzi Forest Farm,Enshi 445300) |
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| Abstract: | By observing the phenology and measuring the growth,the relationship between the phenology variation and the growth of the second generation Larix kaempferi grafting clones in the sub-high mountain area of western Hubei province was analyzed,which provided a basis for the further selection of breeding materials.The results showed that the main shoot growth period of Larix kaempferi in this region was 217.6 d on average,and the lateral shoot growth period was 216 d on average.There was obvious differentiation in phenological period among different lines,and the variation of growth was greater,variable coefficients were 32.55%and 33.21%respectiuly.The correlation analysis of growth period and growth amount showed that there was a significant positive correlation between them,the correlation coefficiens ranged from 0.150 to 0.730,and the phenological period had a good prediction ability for growth. |
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| Keywords: | Larix kaempferi phenology heritable variation |
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