欠測値を含む栄養系適応性検定試験データを用いた一番茶の 化学成分含有量に及ぼす環境要因の解析

日本作物学会紀事

向井 俊博¹  池田 奈実子²  池ヶ谷 賢次郎² 

[1] 花き研究所;野菜茶業研究所

关键词: Camellia sinensis;    Contents of chemical constituents;    化学成分含有量;    Estimation of missing values;    欠測値の推定;    First crop;    一番茶;    Local change;    環境変動;    Nearinfrared reflectance spectroscopy;    近赤外分光分析法;    Tea;    チャ;   

DOI  :  10.1626/jcs.78.196

学科分类：农业科学（综合）

来源: Nihon Sakumotsu Gakkai / Crop Science Society of Japan

【 摘 要 】

Environmental and varietal differences in chemical constituents were analyzed using the first crops of 16 tea cultivars, which were used for the local adaptability test at 10 domestic sites in 1988 and 1989. The contents of total nitrogen, total free amino acids, tannin and caffeine in the first crops of tea were analyzed by near-infrared reflectance (NIR) spectroscopy. Nineteen missing values were estimated prior to two-way factorial analysis. Differences between cultivars and between locations or years were significant at the 1% level for the contents of all chemical constituent in the first crop. Total variance was divided into genotypic variance (σg2), local or yearly variance (σy2) and error variance (σé2). The genotypic variance in total nitrogen, caffeine, total free amino acids and tannin accounted for 21.5, 33.4, 14.6 and 25.9% of total variance, respectively. The contribution of genotypic effects on the chemical constituents of the first crops was smaller than that of environmental effects. The genotypic effect on the caffeine content was larger than that on the other constituent contents.

【 授权许可】

Unknown