計量生物学
Online ISSN : 2185-6494
Print ISSN : 0918-4430
ISSN-L : 0918-4430
原著
果実の 3次元形態の定量的評価と遺伝解析への応用
了 偉根角 博久山田 昌彦高野 泰鵜飼 保雄
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2000 年 20 巻 2 号 p. 131-141

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A method for quantitative evaluation of 3-dimensional (3D) fruit morphology was proposed, including measurement, quantitative description, normalization and statistical analysis of the 3D fruit shape. A measurement system consisting of a CCD laser displacement sensor and two pulse stages was constructed to obtain 3D surface data of fruit. By expanding the shape data measured in a series of spherical harmonic functions, a collection of coefficients to characterize the object surface were obtained. The surface data and coefficients expanded were normalized to provide viewpoint independent of object coordinates for comparison and analysis of different fruits. Based on the principal component analysis about the normalized spherical harmonic coefficients, the scores of some first principal components with high contributions were chosen to summarize the information about 3D shape. We applied the method to evaluate the genetic behavior for citrus and persimmon varieties.

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© 2000 日本計量生物学会
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