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首页> 中文期刊>西部林业科学 >不同种源江南油杉种子基本生物学特性差异比较

不同种源江南油杉种子基本生物学特性差异比较

     
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摘要

通过对博白、福州、富宁、望谟、江永5个地理种源的江南油杉种子形态特征、生理特性、萌发特性等13个指标的比较研究发现:江南油杉种源间种子性状变异较丰富,5个种源间13个指标均存在显著或极显著差异;福州种源种子最重且最长,江永种源种子最宽,富宁种源种子最厚,博白种源种子长宽比最大,种子含水率为14.29%~17.89%;江南油杉种子吸水率低,种皮透水性较差,对其萌发具一定抑制作用;5个种源中,福州种源种子的6个萌发指标均显著高于其他4个种源;种子13个指标间存在显著或极显著相关性,其中,千粒重是评价江南油杉种子质量的重要指标;江南油杉种子部分指标与地理因子存在显著相关性,种子萌发能力与经度呈显著正相关,表现出由西向东萌发能力逐渐增强的趋势.%By comparative study on fourteen indicators of seeds such as the morphology,physiological and germination characteristics,etc.among five provenances(Bobai,Fuzhou,Funing,Wangmo,Jiangyong),the difference in biological characteristics of Keteleeria fortunei var.cyclolepis seeds were discussed.The results showed that the variation of seed characters among provenances was rich.There were significant or extremely significant differences in fourteen indicators of seeds among five provenances.The seeds from Fuzhou were the heaviest and longest.The seeds from Jiangyong were the widest.The seeds from Funing were the thickest.The seeds from Bobai had the biggest aspect ratio.The seeds moisture content was 14.29%~17.89%.K.fortunei var.cyclolepis seed water absorption rate was low and seed coat had poor permeability,which had some inhibitory effect on the germination.Six germination indicators of seeds from Fuzhou were significantly higher than the seeds from others.There was a significant or extremely significant correlation among fourteen indicators.The thousand seed weight was the important indicator for evaluating seed quality of K. fortunei var.cyclolepis.There was significant correlation between part of seed index of K.fortunei var.cyclolepis and geographical factors.A significant positive correlation was found between germination ability and longitude.And the germination ability showed the trend of gradually increase from west to east.

著录项

  • 来源
    《西部林业科学》|2017年第4期|1-6|共6页
  • 作者

    刘雄盛; 王鸿彬; 晏巢; 蒋燚; 肖玉菲; 刘菲; 黄荣林;

  • 作者单位

    广西壮族自治区林业科学研究院/广西优质用材林资源培育重点实验室/国家林业局中南速生材繁育重点实验室,广西 南宁 530002;

    广西壮族自治区林业科学研究院/广西优质用材林资源培育重点实验室/国家林业局中南速生材繁育重点实验室,广西 南宁 530002;

    中国林业科学研究院亚热带林业实验中心,江西 分宜 336600;

    广西壮族自治区林业科学研究院/广西优质用材林资源培育重点实验室/国家林业局中南速生材繁育重点实验室,广西 南宁 530002;

    广西壮族自治区林业科学研究院/广西优质用材林资源培育重点实验室/国家林业局中南速生材繁育重点实验室,广西 南宁 530002;

    广西壮族自治区林业科学研究院/广西优质用材林资源培育重点实验室/国家林业局中南速生材繁育重点实验室,广西 南宁 530002;

    广西壮族自治区林业科学研究院/广西优质用材林资源培育重点实验室/国家林业局中南速生材繁育重点实验室,广西 南宁 530002;

  • 原文格式 PDF
  • 正文语种 chi
  • 中图分类 油松;萌发生理;
  • 关键词

    江南油杉; 种源; 种子; 千粒重; 萌发能力;

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