[1]杨珺雯,姜俊马,贾宁,等.钩锥种子及其苗木性状的遗传变异研究[J].浙江林业科技,2017,37(02):65-71.[doi:10.3969/j.issn.1001-3776.2017.02.010]
 YANG Jun-wen,JIANG Jun-ma,JIA Ning,et al.Study on Variation in Traits of Seed and Seedling and Their Inheritancein Castanopsis tibetana[J].Journal of Zhejiang Forestry Science and Technology,2017,37(02):65-71.[doi:10.3969/j.issn.1001-3776.2017.02.010]
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钩锥种子及其苗木性状的遗传变异研究()
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《浙江林业科技》[ISSN:1001-3776/CN:33-1112/S]

卷:
37
期数:
2017年02期
页码:
65-71
栏目:
出版日期:
2017-06-30

文章信息/Info

Title:
Study on Variation in Traits of Seed and Seedling and Their Inheritancein Castanopsis tibetana
作者:
杨珺雯1姜俊马2贾宁1董雷鸣3丁奕炜1胡纯瑜1唐研耀1曾燕如1
1. 浙江农林大学 省部共建亚热带森林培育国家重点实验室,浙江 临安 311300;2. 浙江省淳安县富溪林场,浙江 淳安311700;3. 中国林业科学研究院 林业研究所,北京 100091
Author(s):
YANG Jun-wen1JIANG Jun-ma2JIA Ning1DONG Lei-ming3DING Yi-wei1HU Chun-yu1TANG Yan-yao1ZENG Yan-ru1
1. State Key Laboratory of Subtropical Silviculture, Zhejiang A & F University, Lin’an 311300, China; 2. Chun’an Fuxi Forest Farm,Chun’an 311700, China; 3. Research Institute of Forestry, CAF, Beijing 100091, China
关键词:
钩锥种子幼苗性状变异地理种源
Keywords:
Castanopsis tibetana seed seedling trait variation provenance
分类号:
S792.17
DOI:
10.3969/j.issn.1001-3776.2017.02.010
文献标志码:
A
摘要:
2013 年10 月在浙江省龙泉市、安徽省休宁县的16 颗钩锥Castanopsis tibetana 母树采集种子,2014 年2-3月在浙江省淳安县播种,4 月上杯。2015 年1 月和2016 年1 月测定相关数据。结果表明,种子纵径9.66 ~ 25.19 mm,横径8.05 ~ 19.89 mm,种形指数0.79 ~ 1.79;发芽率6.67% ~ 87%,生活力10.00% ~ 93.33%,单粒种子重0.93 ~ 2.54g;1 年生苗高3.00 ~ 40.00 cm,1 年生地径0.66 ~ 7.13 mm,2 年生苗高9.00 ~ 124.8 cm,2 年生地径1.62 ~ 12.07 mm;变异系数最大的是发芽率,达61.31%,最小的为种形指数(11.67%)。钩锥地理种源及母树间种子表型、萌发性状及幼苗生长性状变异丰富,差异均达到极显著水平。种子质量对苗木的生长有一定的影响。龙泉种源种子及幼苗性状变异幅度小于休宁,但表现优于休宁种源;种源水平上种子质量相关参数发芽率、生活力、单粒种子重的遗传力相对较高,分别为0.50,0.83,0.90;从采种母树的遗传力来看,最大的为种形指数,达0.80,其次为发芽率(0.73),而种子大小及苗木生长性状的遗传力则较低。
Abstract:
Seed collections were carried out from 16 mother Castanopsis tibetana trees in Longquan of Zhejiang and Xiuning of Anhui province onOctober of 2013. On February and March, sowing was made in Chun’an, Zhejaing province, and seedlings were transplanted on April.Determinations were conducted on January of 2015 and 2016. Results demonstrated that the seed vertical diameter ranged from 9.66 to 25.19 mm,seed transverse diameter from 8.05 to 19.89 mm, seed shape index from 0.79 to 1.79, germination rate from 6.67% to 87%, seed viability from 10.00%to 93.33% , single seed weight from 0.93 to 2.54 g, height of 1-year seedling from 3.00 to 40.00 cm, ground diameter from 0.66 to 7.13 mm of 1-yearseedling, height of 2-year seedling from 9.00 to 124.8 cm, and from 1.62 to 12.07 mm in ground diameter of 2-year seedling. Germination rate hadthe highest variable coefficient, about 61.31%, and the lowest was seed shape index (11.67%). There were significant difference of seed phenotype,germination trait and seedling growth among different provenances and mother trees. Seed quality had effect on seedling growth. The experimentsshowed that seeds from Longquan and their seedlings had lower variance but better performance than that from from Xiuning. Germination rate, seed viability and single seed weight of the same provenance had a relatively high heritability(0.50, 0.83 and 0.90), but in terms of mother trees, themaximum heritability was found in seed shape index (0.80), followed by germination rate (0.70). The heritability of seed size and seedling growthtraits was low.

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备注/Memo

备注/Memo:
收稿日期:2016-10-04;修回日期:2017-01-12
基金项目:国家林业局公益性行业科研专项经费项目(201204405)
作者简介:杨珺雯,硕士研究生,主要从事森林培育研究;E-mail:493427851@qq.com。通信作者,曾燕如,教授,主要从事森林培育研究;E-mail:yrzeng@zafu.edu.cn。
更新日期/Last Update: 2017-04-20