@article{oai:repository.naro.go.jp:00001126, author = {TANAKA, Katsunori and 田中, 克典 and 鴫田, 玄太郎 and SHIGITA, Gentaro and YON, Sophea and Sophea, YON and THUN, Vathany and Vathany, THUN and SAKHAN, Sophany and Sophany, SAKHAN and KATO, Kenji and 加藤, 鎌司}, journal = {植物遺伝資源探索導入調査報告書, Annual Report on Exploration and Introduction of Plant Genetic Resources}, month = {Mar}, note = {A previous field survey in eastern Cambodia yielded ample information on cultivation and utilization of cucurbitaceous crops, and analyzed variations in fruit and seed traits in melon genetic resources. A field survey conducted mainly in northern Cambodia collected genetic resources of cucurbitaceous crops to better understand those variations from a higher breeding and botanic perspective and to uncover variations of fruit and seed traits in melon landraces. A total of 127 samples were collected at markets, farmer houses, and fields in nine provinces and in the capital, and were registered as a germplasm collection, both in Cambodia and Japan. Among the 70 accessions of melon, 52, 17, and 1 of them were collected as seeds, fruits, and a plant, respectively. These melon accessions comprised cultivated landraces, improved varieties, and wild melons. Cultivation, including open pollination of melon landraces and utilization were very similar to those recorded in eastern and western Cambodia, and are predicted to cause non-significant differences in fruit and seed traits between geographical areas in Cambodia. Fruit and seed lengths of collected melons in Cambodia, including those from previous field surveys, were greater than those in Yunnan Province, China, and Lao PDR, suggesting different combination of quantitative trait loci (QTL) related to fruit and seed length in melon landraces between Cambodia and other Southeast Asian countries. Other fruits characters, such as powdery texture of fruits, gelatinous sheath around seeds, oblong fruit shape, and low sugar concentration (brix) of flesh juice found in melon landraces from Cambodia were similar to those from South and East Asia, in which useful breeding materials for disease resistance were found among melon landraces. Thus, melon genetic resources in Cambodia should be analyzed for genetic components of fruit and seed traits and evaluated for disease resistance for melon breeding purposes.}, pages = {175--206}, title = {2016年度カンボジアにおけるウリ科作物遺伝資源の探索}, volume = {33}, year = {2018}, yomi = {タナカ, カツノリ and シギタ, ゲンタロウ and ソパニー, サカン and カトウ, ケンジ} }