サツマイモ蒸切干加工用品種の収量・品質関連形質に及ぼす マルチ被覆および気象の影響

日本作物学会紀事

中村 善行²  中谷 誠¹  藏之内 利和²  高田 明子²  田宮 誠司³  熊谷 亨² 

[1] 国際農林水産業研究センター;作物研究所;北海道農業研究センター

关键词: Sweet potato;    サツマイモ;    Steamed and cured slices;    蒸切干;    Film mulch;    マルチ;    White opaque defect "Shirota";    シロタ;    Soil temperature;    地温;    干しいも;   

DOI  :  10.1626/jcs.79.491

学科分类：农业科学（综合）

来源: Nihon Sakumotsu Gakkai / Crop Science Society of Japan

【 摘 要 】

Steamed and dried sweet potato slices so-called “hoshi-imo” is an important agricultural product in Ibaraki and other prefectures in Japan. Using two cultivars ”Tamayutaka” and ”Izumi-13”, which have been cultivated for hoshi-imo production, we investigated the agronomic characters, root yield, rate of ”Shirota” which is a white-opaque defect, dry matter content and starch content from 2000 to 2008. Then we analyzed the influences of film mulching and weather condition on these agronomic characters. Soil temperature was raised 0.3–0.7°C during the cultivation period, but the Shirota defect was not significantly influenced by film mulching. Root yield and starch content were increased by film mulching. These results indicate the benefit of mulching on root production for hoshi-imo. A negative correlation was observed between the precipitation in the latter half of the growing period and the rate of Shirota defect. A low soil moisture was suggested to increase the occurrence of Shirota defect.

【 授权许可】

Unknown