NARO Institutional Repository
Not a member yet
9784 research outputs found
Sort by
Abandoned farmland detection using single-year satellite images in Japan
Get PDFMapping abandoned farmlands' location and spatial pattern is essential for rural planning. Monitoring small abandoned farmland based on dynamic farmland's phenology is challenging to due to conflict between spatial and temporal resolutions of conventional satellite missions. A unique approach that combines satellite constellation imagery with improved automatic radiometric normalization method for more temporally consistent reflectance were proposed. Applying it in Ami-town, Ibaraki Prefecture, Japan, abandoned farmlands were identified with 3-m resolution and a Kappa coefficient of 0.81 based on satellite constellation-based timeseries data; however, the discrimination of the degree of abandonment was challenging. Unlike conventional abandoned farmland mapping approaches which targets spatially large area, our approach provides information at small, fragmented and abandoned farmland in East Asia that enables labor-saving monitoring of land use shifts.journal articl
Exploration and Collection of Vegetable Genetic Resources in Southern Cambodia, 2021
Get PDFCambodia is one of the diversity centers of vegetable crops, such as Cucurbitaceae and Solanaceae crops, which could serve as useful genetic resources for breeding programs. Field exploration was conducted in southern Cambodia to collect vegetable genetic resources based on cultivation methods and characteristics. A total of 85 samples from nine crops, including 21 accessions of amaranth, 7 of wax gourd, 34 of melon, 3 of cucumber, 14 of pumpkin, 3 of bottle gourd, and 1 each of watermelon, eggplant, and maize, were collected at 36 sites in five provinces. These samples were collected at new sites, with the exception of one amaranth sample, which was collected from a site where melon samples were previously collected. Their local names, cultivation methods, and the variations in plant and fruit traits were obtained through interviews with farmers or observation of plants and fruits, such as amaranth, wax gourds, melons, and pumpkins, found in a wide geographical area of Cambodia. This information is thought to be a useful reference in the study of Cambodian genetic resources, as well as for the management of collected genetic resources.カンボジアはウリ科やナス科などの野菜の多様性中心の一つで，同国における野菜遺伝資源はこれらの育種計画において有益な素材として活用できる．そこで，カンボジア南部において野菜類に関する遺伝資源探索を実施し，野菜遺伝資源とともに，それらの栽培方法や特性に関する情報を収集した．本探索では，5州の36地点から85点の野菜遺伝資源を収集した．その内訳は，21点のアマランサス，7点のトウガン，34点のメロン，3点のキュウリ，14点の日本カボチャ，3点のヒョウタンおよびそれぞれ1点のスイカ，ナスとトウモロコシである．収集した遺伝資源は，1点を除いて，新規の地点から収集したものであり，また，残る1点のアマランサスについても，これまでに，その地点からはアマランサスは収集されていなかった．このことから，これら85点の遺伝資源は過去の探索地との重複無く収集されたものであった．農家からの聞き取りや形質の調査によって得たアマランサス，トウガン，メロンおよび日本カボチャについての呼称や栽培方法および植物や果実の変異についての情報は，カンボジア東部，西部，南部および北部での探索において得られた情報と同じまたはそれに近いものであった．既報や本調査における4つの作物についての概要や形質についての情報は，カンボジアの遺伝資源に関する研究や本調査で収集した遺伝資源の管理・利用に有益であると考えられる．Figure 1点, Table 4点, Photo 23点, Sample Photo 83点departmental bulletin pape
Collaborative Survey and Collection of Brassica Vegetable Genetic Resources in the Southern Part of Shan State, Myanmar in 2019
Get PDFGenetic resource exploration and collection of Brassica vegetables called “Mohn Nyinˮ were carried out in the southern Shan State (from Kalaw to Taunggyi) in the Republic of the Union of Myanmar from November 17 – 28, 2019. This survey was conducted jointly by the Department of Agricultural Research, Ministry of Agriculture, Livestock, and Irrigation, Myanmar, and the Tokyo University of Agriculture, Japan. In this collaborative survey, 43 accessions were collected: 27 accessions of Brassica juncea (L.) Czern., 4 of Brassica rapa L., 3 of Brassica oleracea L. (Alboglabra Group), 8 of Brassica spp., and 1 of Raphanus sativus L. The samples from these 43 collections were divided into two parts; one was stored in the Myanmar Seed Bank and the other introduced into Japan under the Standard Materials Transfer Agreement (SMTA) and stored at the Genebank of the National Agriculture and Food Research Organization (NARO Genebank). Multiple seeds will be distributed for agricultural research, breeding, and educational purposes as the useful genetic resources.ミャンマー連邦共和国において，“Mohn Nyin” と呼ばれるアブラナ野菜の遺伝資源探索収集を行った．調査・収集は2019 年 11 月 17 日から 11 月 28 日までシャン州南部カローからタウンジーにかけて，ミャンマー農業畜産潅漑省農業研究局および東京農業大学の共同で行った．その結果，Brassica juncea 27 点，B. rapa 4 点，B.
oleracea L. Alboglabra Group 3 点，Brassica spp. 8 点, Raphanus sativus L. 1 点の計 43 点を収集した．これらの収集品は 2 分し，一方はミャンマーシードバンクにて保存している．もう一方は標準材料移転契約 (SMTA) に基づき日本に導入し，これらを農業研究，育種，教育目的で配布可能な遺伝資源として，農業・食品産業技術総合研究機構遺伝資源研究センターにて保存している．Figure 1点, Table 2点, Photo 14点departmental bulletin pape
Collection sites （●）and collection numbers of Miscanthus spp. in the Gifu, Toyama, and Ishikawa prefectures．\n岐阜県，富山県および石川県おけるススキ属の収集地点（●）と収集番号．
Get PDFpdfFig. 1datase
TOY-05, JP286190, Vigna marina
Get PDFpdfScientific name: Vigna marina
Plant name: beach cowpea
JP No.: JP286190
Collection date: 2019/11/19
Country (Prefecture): Japan (Kagoshima)
Latitude: N27˚49'00.4"
Longitude: E128˚58'08.1"
Altitude (m): 4
Collectors: Akiko Baba-Kasaidatase
TOY-17, JP286202, Vigna marina
Get PDFpdfScientific name: Vigna marina
Plant name: beach cowpea
JP No.: JP286202
Collection date: 2019/11/22
Country (Prefecture): Japan (Kagoshima)
Latitude: N27˚03'09.4"
Longitude: E128˚24'56.1"
Altitude (m): 4
Collectors: Akiko Baba-Kasaidatase
Collection and search sites in the Tanegashima, Yakushima, and Amami Oshima islands, Kagoshima Prefecture.
Get PDFpdfFig. 1datase
Mature pods of Vigna marina growing near the Chinase fishing port in the western part of Amami Oshima Island. On the map (Fig. 1), the location is marked as TYA12.
Get PDFpdfScientific name: Vigna marina
Plant name: beach cowpea
JP No.: JP286227
Collection date: 2021/9/29
Country (Prefecture): Japan (Kagoshima)
Latitude: N28˚22'49.9"
Longitude: E129˚26'51.9"
Altitude (m): 2
Collectors: Akiko Baba-Kasai, Masanori Matsuo, Mitsunori Akibadatase
TYA-10, JP286223, Vigna marina
Get PDFpdfScientific name: Vigna marina
Plant name: beach cowpea
JP No.: JP286224
Collection date: 2021/9/28
Country (Prefecture): Japan (Kagoshima)
Latitude: N28˚24'42.1"
Longitude: E129˚40'20.5"
Altitude (m): 11
Collectors: Akiko Baba-Kasai, Masanori Matsuo, Mitsunori Akibadatase
TYA-25_01, JP286246, Vigna marina
Get PDFpdfScientific name: Vigna marina
Plant name: beach cowpea
JP No.: JP286246
Collection date: 2021/10/1
Country (Prefecture): Japan (Kagoshima)
Latitude: N28°28'26.8''
Longitude: E129°35'53.4"
Altitude (m): 13
Collectors: Akiko Baba-Kasai, Masanori Matsuo, Mitsunori Akibadatase