KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION; LTD.;FORESTRY AND FOREST PRODUCTS RESEARCH INSTITUTE;住友林業株式会社;SUMITOMO FORESTRY CO.;国立研究開発法人森林総合研究所;国立大学法人九州大学;SUMITOMO FORESTRY CO., LTD.
Provided is a conifer seed selecting method for identifying and selecting only conifer seeds which have a normal embryo, from a mixture, of an identical species, of conifer seeds some having a normal embryo and some not having a normal embryo, the method comprising the steps of: (a) irradiating the seeds with near infrared light, measuring the spectrum of near infrared light reflected from each seed, and obtaining data of reflectance at each wavelength； (b) extracting, for each seed, data of reflectances at two specific wavelengths within a range of 750 to 2200 nm； (c) calculating, for each seed, the ratio between the extracted reflectances； and (d) comparing the ratio calculated in (c) with a threshold for the ratio of reflectances at the two specific wavelengths for determining whether the seed has a normal embryo, wherein (i) when there is a tendency that the ratio is lower than or equal to the threshold in a seed having a normal embryo, a seed having the ratio lower than or equal to the threshold is identified as a seed having a normal embryo, and (ii) when there is a tendency that the ratio is greater than the threshold in a seed having a normal embryo, a seed having the ratio greater than the threshold is identified as a seed having a normal embryo.La présente invention concerne un procédé de sélection de semence de conifères pour identifier et sélectionner uniquement des semences de conifères ayant un embryon normal, à partir d'un mélange, d'espèces identiques, de semences de conifères certaines ayant un embryon normal et certaines n'ayant pas d'embryon normal, le procédé comprenant les étapes de : (a) exposition des semences à de la lumière proche infrarouge, mesure du spectre de la lumière proche infrarouge reflétée par chaque semence, et obtention des données de réflectance à chaque longueur d'onde； (b) extraction, pour chaque semence, des données de réflectance à deux longueurs d'ondes spécifiques à l'intérieur d'une plage de 750 à 2 200 nm； (c) calcul, p
