{"title":"Estimation of Radioactive Cesium Concentration in Persimmon Fruits of Different Branches of Individual Trees","authors":"S. Horii, H. Sekizawa, M. Hachinohe, S. Kusaba","doi":"10.6090/jarq.57.55","DOIUrl":"https://doi.org/10.6090/jarq.57.55","url":null,"abstract":"","PeriodicalId":14700,"journal":{"name":"Jarq-japan Agricultural Research Quarterly","volume":"237 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76941451","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Daiki Kawashima, O. Mikami, Tomoyuki Shibahara, Y. Ishikawa, K. Kadota
{"title":"Suspected Case of MALT Lymphoma of the Nasal Turbinate in a Horse","authors":"Daiki Kawashima, O. Mikami, Tomoyuki Shibahara, Y. Ishikawa, K. Kadota","doi":"10.6090/jarq.57.73","DOIUrl":"https://doi.org/10.6090/jarq.57.73","url":null,"abstract":"","PeriodicalId":14700,"journal":{"name":"Jarq-japan Agricultural Research Quarterly","volume":"32 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80873401","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Chisato Yamaguchi, Takehiko Yamamoto, Daisuke Yamauchi, T. Muro
{"title":"Evaluation of the Relationship Between Growth Parameters for Spring-sown Onion Cultivation in Tohoku, Japan","authors":"Chisato Yamaguchi, Takehiko Yamamoto, Daisuke Yamauchi, T. Muro","doi":"10.6090/jarq.57.13","DOIUrl":"https://doi.org/10.6090/jarq.57.13","url":null,"abstract":"","PeriodicalId":14700,"journal":{"name":"Jarq-japan Agricultural Research Quarterly","volume":"34 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80316336","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Development of QAgriSupport, a GIS-based Agricultural Production Process Management System, and Foregis, a Mobile Application","authors":"K. Nishimura","doi":"10.6090/jarq.57.79","DOIUrl":"https://doi.org/10.6090/jarq.57.79","url":null,"abstract":"","PeriodicalId":14700,"journal":{"name":"Jarq-japan Agricultural Research Quarterly","volume":"1 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77071348","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
N. Yamada, Yoshiko Mise, N. Yonemura, Hiroki Sakai, K. Uchino, H. Sezutsu, T. Tamura, T. Iizuka
{"title":"Development of an Injection Method for the Genetic Engineering of Diapause Silkworm Egg Using Dimethyl Sulfoxide","authors":"N. Yamada, Yoshiko Mise, N. Yonemura, Hiroki Sakai, K. Uchino, H. Sezutsu, T. Tamura, T. Iizuka","doi":"10.6090/jarq.57.63","DOIUrl":"https://doi.org/10.6090/jarq.57.63","url":null,"abstract":"","PeriodicalId":14700,"journal":{"name":"Jarq-japan Agricultural Research Quarterly","volume":"57 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81342457","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hiroki Saito, Chhourn Orn, V. Thun, Makara Ouk, Asami Tomita, K. Sasaki, M. Obara, N. Kobayashi, Y. Fukuta
{"title":"Diversity of Traits Related to Panicle Architecture and Grain Size in Cambodian Rice Germplasm and Newly Developed Mini-core Collection","authors":"Hiroki Saito, Chhourn Orn, V. Thun, Makara Ouk, Asami Tomita, K. Sasaki, M. Obara, N. Kobayashi, Y. Fukuta","doi":"10.6090/jarq.57.21","DOIUrl":"https://doi.org/10.6090/jarq.57.21","url":null,"abstract":"","PeriodicalId":14700,"journal":{"name":"Jarq-japan Agricultural Research Quarterly","volume":"51 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80265436","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Development of Temporary and Seasonal Agricultural Labor Forces in Japan","authors":"Wakaba Magaki","doi":"10.6090/jarq.57.9","DOIUrl":"https://doi.org/10.6090/jarq.57.9","url":null,"abstract":"","PeriodicalId":14700,"journal":{"name":"Jarq-japan Agricultural Research Quarterly","volume":"BME-15 3","pages":""},"PeriodicalIF":0.4,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72613704","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Akinori Mori, Yuma Michinobu, A. Miyata, Takehiko Matsumoto, S. Matsuura, M. Tsuiki, Takatoshi Arita, Mariko Shimizu, R. Hatano
In 2015-2016, we investigated the farmland management procedures used on dairy farms in Japan using a mail-back survey. In Hokkaido, 98% of the surveyed farms had meadows, 53% had pastures, and 49% had forage crop fields. In all other prefectures, 19% of farms had meadows, 10% had pastures, and 90% had forage crop fields. The median area of each field category per farm was greater in Hokkaido than in the other prefectures. In all places, the application rate of organic fertilizer decreased in the following order: forage crop field > meadow > pasture (37, 8.7, and 2.7 Mg-manure ha −1 y −1 , respectively, in Hokkaido). In forage crop fields, organic fertilizer was applied at lower rates and inorganic fertilizer was applied at higher rates in Hokkaido than elsewhere (37 vs. 69 Mg-manure ha −1 y −1 and 42 vs. 22 kg-N ha −1 y −1 respectively). In meadows, organic fertilizer was applied at lower rates in Hokkaido (8.7 vs. 14 Mg-manure ha −1 y −1 ); however, inorganic fertilizer was applied at similar rates. The annual rate of grassland renovation with full-inversion tillage in 2006-2010 was 3.0% in Hokkaido and 1.3% in the other prefectures. In both regions, manure was intensively applied during grassland renovation.
2015-2016年，我们采用邮寄调查的方式调查了日本奶牛场的农田管理程序。在北海道，98%的被调查农场有草地，53%有牧场，49%有饲料作物田。在所有其他县中，19%的农场有草地，10%有牧场，90%有饲料农田。北海道每个农场的每一种田类别面积中位数大于其他县。各地区有机肥施用量依次为饲料作物田>草甸>牧场(北海道分别为37、8.7和2.7 mg -粪肥ha - 1 y - 1)。在饲料作物田，北海道的有机肥施用量较低，无机肥施用量较高(分别为37比69 mg -粪肥ha - 1 y - 1和42比22 kg-N ha - 1 y - 1)。北海道草甸有机肥施用量较低(8.7比14 mg / h - 1 y - 1);然而，无机肥料的施用量相似。2006-2010年，北海道全反耕草地年增率为3.0%，其他县为1.3%。这两个地区在草地整治过程中都大量施用有机肥。
{"title":"Soil Fertility Management and Grassland Renovation on Dairy Farms in Japan: Regional Differences between Hokkaido and Other Prefectures","authors":"Akinori Mori, Yuma Michinobu, A. Miyata, Takehiko Matsumoto, S. Matsuura, M. Tsuiki, Takatoshi Arita, Mariko Shimizu, R. Hatano","doi":"10.6090/jarq.56.349","DOIUrl":"https://doi.org/10.6090/jarq.56.349","url":null,"abstract":"In 2015-2016, we investigated the farmland management procedures used on dairy farms in Japan using a mail-back survey. In Hokkaido, 98% of the surveyed farms had meadows, 53% had pastures, and 49% had forage crop fields. In all other prefectures, 19% of farms had meadows, 10% had pastures, and 90% had forage crop fields. The median area of each field category per farm was greater in Hokkaido than in the other prefectures. In all places, the application rate of organic fertilizer decreased in the following order: forage crop field > meadow > pasture (37, 8.7, and 2.7 Mg-manure ha −1 y −1 , respectively, in Hokkaido). In forage crop fields, organic fertilizer was applied at lower rates and inorganic fertilizer was applied at higher rates in Hokkaido than elsewhere (37 vs. 69 Mg-manure ha −1 y −1 and 42 vs. 22 kg-N ha −1 y −1 respectively). In meadows, organic fertilizer was applied at lower rates in Hokkaido (8.7 vs. 14 Mg-manure ha −1 y −1 ); however, inorganic fertilizer was applied at similar rates. The annual rate of grassland renovation with full-inversion tillage in 2006-2010 was 3.0% in Hokkaido and 1.3% in the other prefectures. In both regions, manure was intensively applied during grassland renovation.","PeriodicalId":14700,"journal":{"name":"Jarq-japan Agricultural Research Quarterly","volume":"18 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90517582","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Here, Japanese wheat breeding and agronomic studies on lodging resistance, focusing on culm strength are discussed. In Japan, the selection of short-culm wheat varieties is preferred for breeding purposes to date due to their lodging resistance, whereas culm strength has only marginally improved. However, improving culm strength was suggested to help improve lodging resistance in short-culm varieties. Thus, among the 18 typical and predominant wheat varieties, “Yumechikara” showed maximum bending moment at the breaking of the basal internode and produced the strongest culm. Meanwhile, among other varieties that produced strong culms, some demonstrated considerable bending stress and medium section modulus, whereas some showed medium bending stress and large section modulus. Improved varieties with higher lodging resistance may be produced by crossbreeding of varieties with different levels of culm strength. Regarding the effects of crop management, decreased seeding rates resulted in shorter culm length and increased bending moment at the breaking point of the basal internode, which indicated higher lodging resistance. Therefore, low seeding rates may be suitable for heavily fertilized wheat crops, requiring high lodging resistance.
{"title":"Breeding and Agronomic Research on Lodging Resistance and Culm Strength of Japanese Wheat Cultivars","authors":"Hiromi Matsuyama","doi":"10.6090/jarq.56.303","DOIUrl":"https://doi.org/10.6090/jarq.56.303","url":null,"abstract":"Here, Japanese wheat breeding and agronomic studies on lodging resistance, focusing on culm strength are discussed. In Japan, the selection of short-culm wheat varieties is preferred for breeding purposes to date due to their lodging resistance, whereas culm strength has only marginally improved. However, improving culm strength was suggested to help improve lodging resistance in short-culm varieties. Thus, among the 18 typical and predominant wheat varieties, “Yumechikara” showed maximum bending moment at the breaking of the basal internode and produced the strongest culm. Meanwhile, among other varieties that produced strong culms, some demonstrated considerable bending stress and medium section modulus, whereas some showed medium bending stress and large section modulus. Improved varieties with higher lodging resistance may be produced by crossbreeding of varieties with different levels of culm strength. Regarding the effects of crop management, decreased seeding rates resulted in shorter culm length and increased bending moment at the breaking point of the basal internode, which indicated higher lodging resistance. Therefore, low seeding rates may be suitable for heavily fertilized wheat crops, requiring high lodging resistance.","PeriodicalId":14700,"journal":{"name":"Jarq-japan Agricultural Research Quarterly","volume":"61 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81472850","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Citrus cultivar identification systems using cleaved amplified polymorphic site and single-nucleotide polymorphism markers have been developed for nursery trees and flesh fruits, but time and cost efficiency require improvement for the inspection process. Here, we developed a new cultivar identification system using the InDel marker. Twelve InDel markers, which revealed clear bi-allelic PCR fragment patterns, were selected from 185 InDel markers. Their primer sets were redesigned to generate less than 650 bp PCR fragments, and all were confirmed to apply to leaf and fresh fruit samples. It was confirmed that they were inherited in a codominant fashion among cultivars with parent–offspring relationships. At least two differentiating InDel polymorphisms to discriminate any paired combination among 33 citrus cultivars were provided, including 14 ancestral varieties and a reference genome cultivar of the clementine mandarin. Minimal marker subsets to identify the target cultivar are listed for each of the 14 registered cultivars with valid breeder’s rights. The developed cultivar identification system features a simple experimental procedure with PCR and electrophoresis, saving time and cost during the inspection process. It could help protect registered cultivars from the illegal distribution of nursery trees and the reimportation of illegal fruits from abroad.
{"title":"Development of Cultivar Identification System Using 12 InDel Markers for Widely Distributed Citrus Cultivars in Japan","authors":"T. Endo, Hiroshi Fujii, T. Shimada","doi":"10.6090/jarq.56.329","DOIUrl":"https://doi.org/10.6090/jarq.56.329","url":null,"abstract":"Citrus cultivar identification systems using cleaved amplified polymorphic site and single-nucleotide polymorphism markers have been developed for nursery trees and flesh fruits, but time and cost efficiency require improvement for the inspection process. Here, we developed a new cultivar identification system using the InDel marker. Twelve InDel markers, which revealed clear bi-allelic PCR fragment patterns, were selected from 185 InDel markers. Their primer sets were redesigned to generate less than 650 bp PCR fragments, and all were confirmed to apply to leaf and fresh fruit samples. It was confirmed that they were inherited in a codominant fashion among cultivars with parent–offspring relationships. At least two differentiating InDel polymorphisms to discriminate any paired combination among 33 citrus cultivars were provided, including 14 ancestral varieties and a reference genome cultivar of the clementine mandarin. Minimal marker subsets to identify the target cultivar are listed for each of the 14 registered cultivars with valid breeder’s rights. The developed cultivar identification system features a simple experimental procedure with PCR and electrophoresis, saving time and cost during the inspection process. It could help protect registered cultivars from the illegal distribution of nursery trees and the reimportation of illegal fruits from abroad.","PeriodicalId":14700,"journal":{"name":"Jarq-japan Agricultural Research Quarterly","volume":"108 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85264523","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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