[1]杜超群,赵虎,袁慧,等.日本落叶松种子园母树生长及种实性状评价[J].森林与环境学报,2019,39(01):32-36.[doi:10.13324/j.cnki.jfcf.2019.01.006]
 DU Chaoqun,ZHAO Hu,YUAN Hui,et al.Evaluation of growth and seed characters of trees in a seed orchard of Larix kaempferi[J].,2019,39(01):32-36.[doi:10.13324/j.cnki.jfcf.2019.01.006]
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日本落叶松种子园母树生长及种实性状评价()
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《森林与环境学报》[ISSN:2096-0018/CN:35-1327/S]

卷:
39卷
期数:
2019年01期
页码:
32-36
栏目:
出版日期:
2018-12-28

文章信息/Info

Title:
Evaluation of growth and seed characters of trees in a seed orchard of Larix kaempferi
作者:
杜超群1 赵虎1 袁慧1 侯义梅2 朱于勤3 许业洲1
1. 湖北省林业科学研究院, 湖北 武汉 430075;
2. 建始县林业科学研究所, 湖北 建始 445300;
3. 建始县国有长岭岗林场, 湖北 建始 445300
Author(s):
DU Chaoqun1 ZHAO Hu1 YUAN Hui1 HOU Yimei2 ZHU Yuqin3 XU Yezhou1
1. Hubei Academy of Forestry, Wuhan, Hubei 430075, China;
2. Institute of Forestry Science in Jianshi, Jianshi, Hubei 445300, China;
3. Jianshi County Changlinggang National Forest Farm, Jianshi, Hubei 445300, China
关键词:
日本落叶松种子园种实性状评价
Keywords:
Larix kaempferi (Lamb.) Carr.seed orchardseed charactersevaluation
分类号:
S722.83
DOI:
10.13324/j.cnki.jfcf.2019.01.006
摘要:
为提高日本落叶松种子园的产量和品质,以建始县长岭岗林场1.5代无性系种子园为研究对象,通过对母树生长状况、球果产量和种子品质的调查,评价不同无性系生长和结实性状的差异及性状间的相关性,筛选生长和结实兼优的无性系。结果表明:不同无性系之间结实量、球果单果干重和种子千粒重存在极显著差异,球果长宽及苗圃播种发芽率存在显著差异,胸径及其他指标不存在显著差异;相关分析表明胸径与结实量、结实量与发芽率无显著相关,说明种子园优良无性系的选择要兼顾胸径、结实量和发芽率3个指标;选出优良无性系11个,结实量提高14.29%,种子发芽率提高32.96%,可为新一轮的日本落叶松生产群体的构建提供材料。
Abstract:
To improve the yield and quality of seed orchards, the seed trees in a 1.5-generation clonal seed orchard of Larix kaempferi were studied in Jianshi County Changlinggang National Forest Farm. The growth, seed yield, and seed quality of seed trees were investigated to evaluate the differences in and relationship of growth and seed characters among clones and select superior clones for both growth and seed characters. The results showed that there were extremely significant differences in seed yield, dry weight of a single cone, and thousand seed weight, and significant differences with length and width of cones and seed germination rate for different clones. The difference in DBH and other indicators were not significant. Correlations between DBH and seed yield, seed yield and seed germination rate were not significant. These results showed that all three indicators mentioned should be given consideration in selection of superior clones. Eleven superior clones were selected with a seed yield and seed germination rate 14.29% and 32.96% higher, respectively, to provide material to build a new production group.

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备注/Memo

备注/Memo:
收稿日期:2018-07-06;改回日期:2018-10-17。
基金项目:“十二五”农村领域国家科技支撑计划子课题(2015BAD09B0104);湖北省技术创新专项(重大项目)(2016ABA111)。
作者简介:杜超群(1981-),女,副研究员,从事林木遗传育种与森林培育研究。Email:smiledudu@126.com。
通讯作者:许业洲(1966-),男,研究员,从事林木遗传育种与森林培育研究。Email:xyz0271@sina.com。
更新日期/Last Update: 1900-01-01