@article{oai:kindai.repo.nii.ac.jp:02001017, author = {山本, 英治 and YAMAMOTO, Eiji and 小川, 紗弥 and OGAWA, Saya and 藤村, 宗平 and FUJIMURA, Souhei and 山崎, 彬 and YAMAZAKI, Akira and 松川, 哲也 and MATSUKAWA, Tetsuya and 松久保, 康輔 and MATSUKUBO, Kosuke and 細川, 宗孝 and HOSOKAWA, Munetaka}, issue = {57}, journal = {近畿大学農学部紀要, MEMOIRS OF THE FACULTY OF AGRICULTURE OF KINDAI UNIVERSITY}, month = {Mar}, note = {Strawberries represent a significant cash crop in Japan, with considerable efforts being dedicated to breeding. The aim of breeding is to produce distinct cultivars with unique traits, for example, high sugar content. It is imperative to create cultivars with beneficial traits to enhance the quality of the cash crop. With this objective in mind, a breeding program was undertaken to develop a new strawberry cultivar characterized by high sugar content. The two parental cultivars utilized for crossbreeding were the high-sugar cultivar 'Amaekubo' and the high-yielding cultivar 'Kaorino'. In 2020, 24 varieties were chosen using a tasting test from a pool of 536 seedlings. The following year, measurements of monthly yield, sugar content, acidity, and peel hardness were taken for the chosen 24 varieties and two parental cultivars. The recorded data was then subjected to cluster analysis to classify the selected varieties and two parental cultivars. Consequently, KD-S1 and B99 varieties created a distinct cluster from the parental cultivars and other varieties. Both of these two varieties exhibited notably high Brix levels for sugar content during February, with levels exceeding 16°. Furthermore, they also displayed high sugar content values in March, as well as acidity and fruit hardness in February. Considering these data alongside the visual appearance of the fruit, KD-S1 was deemed the most suitable line. Additionally, a trait survey of KD-S1 was conducted in 2022, revealing that it possesses qualities that enable it to sustain high quality beyond March, ultimately making it a cultivar capable of producing superior-quality fruit over an extended period. As a university-originated strawberry cultivar, KD-S1 holds promise for novel research and educational activities. Additionally, it is anticipated that KD-S1, with its distinctive features, will experience a surge in demand, particularly among children, and will be manufactured and marketed across Japan.}, pages = {1--18}, title = {イチゴ新品種‘KD-S1’の育成とその特性}, year = {2024} }