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Citation:

Investiga tion on Four Type of Torreya grandis

  • Received Date: 2006-06-26
  • The investigation from 2001 to 2006 showed that Xifei variety of the Torreya grandis maybe come from afew torreya trees. There were differences in the period of germination and mature, aswell as in the shape of leaf andseed. According to the investigation , four excellent typeswere found in the Dongyong City, Zhejiang Province , theywere the Thin Seed Xifei (Dongyong number 1) , the EarlierMature Thin Seed Xifei (Dongyong number 2) , theBigger Leaf Xifei and the SmallerLeaf Xifei. The RAPD test ofDNA showed itwas true. In order to distinguish theratio of varies of width for the leaf and for the seed in its different parts, the concep t of variation gradientwas introduced. They had not only different forms in leaf and seed, but also distinctions in some habit. All of the four typesof Xifei grow at a lot of areas, seedling abundantly. So they could be called varieties indeed. The method combininginvestigation and testingwas very useful, thatwould make to find a lot of excellent resources of types from the p roduct populations in the future.
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  • [1] 陈斌, 童培根. 香榧优良品种———细榧[J]. 农业科技通讯,2002 (1) : 36

    [2] 陈力耕, 王辉, 童品璋. 香榧的主要品种及其开发价值[J]. 中国南方果树, 2005, 34 (5) : 33~34

    [3] 谭晓凤, 胡芳名. 香榧主要栽培品种的RAPD分析[J]. 园艺学报, 2002, 29 (1) : 69~71

    [4] 黄少鹏, 方青. 樵山村香榧资源调查[J]. 安徽林业科技, 2000(3) : 18

    [5] 胡芳名,丁之恩. 黄山不同类型香榧品质研究[J]. 中南林学院学报, 2003, 23 (4) : 1~4

    [6] 黎章矩, 程晓建, 戴文圣, 等. 香榧品种起源考证[J]. 浙江林学院学报, 2005, 22 (4) : 443~448

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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Investiga tion on Four Type of Torreya grandis

  • 1. Research Institute of Subtrop ical Forestry, CAF, Fuyang 311400, Zhejiang, China
  • 2. Dongyang City Chinese Torreya Institute of Zhejian Province, Dongyang 322100, Zhejiang, China

Abstract: The investigation from 2001 to 2006 showed that Xifei variety of the Torreya grandis maybe come from afew torreya trees. There were differences in the period of germination and mature, aswell as in the shape of leaf andseed. According to the investigation , four excellent typeswere found in the Dongyong City, Zhejiang Province , theywere the Thin Seed Xifei (Dongyong number 1) , the EarlierMature Thin Seed Xifei (Dongyong number 2) , theBigger Leaf Xifei and the SmallerLeaf Xifei. The RAPD test ofDNA showed itwas true. In order to distinguish theratio of varies of width for the leaf and for the seed in its different parts, the concep t of variation gradientwas introduced. They had not only different forms in leaf and seed, but also distinctions in some habit. All of the four typesof Xifei grow at a lot of areas, seedling abundantly. So they could be called varieties indeed. The method combininginvestigation and testingwas very useful, thatwould make to find a lot of excellent resources of types from the p roduct populations in the future.

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