A. Ohmori, Kousuke Tsuji, M. Sugimoto, T. Tominaga
shows that the environmental requirements for dormancy release after seed dispersal of the two species are different.
说明两种植物种子传播后解除休眠的环境要求不同。
{"title":"Effects of light and temperature on the germination of alien Physalis spp.","authors":"A. Ohmori, Kousuke Tsuji, M. Sugimoto, T. Tominaga","doi":"10.3719/weed.67.137","DOIUrl":"https://doi.org/10.3719/weed.67.137","url":null,"abstract":"shows that the environmental requirements for dormancy release after seed dispersal of the two species are different.","PeriodicalId":17635,"journal":{"name":"Journal of Weed Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75720013","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"First naturalization year in Japan and new naturalization in Shikoku and Kyushu districts in Rotala ramosior (Lythraceae)","authors":"H. Hayakawa, Toshio Fujii","doi":"10.3719/weed.67.61","DOIUrl":"https://doi.org/10.3719/weed.67.61","url":null,"abstract":"","PeriodicalId":17635,"journal":{"name":"Journal of Weed Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78138209","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Masataka Otani, Masakazu Nishihara, Takeshi Uematsu, H. Asao
{"title":"Experiment of mechanical weed control in medicinal crop cultivation on Angelica acutiloba Kitagawa","authors":"Masataka Otani, Masakazu Nishihara, Takeshi Uematsu, H. Asao","doi":"10.3719/weed.67.64","DOIUrl":"https://doi.org/10.3719/weed.67.64","url":null,"abstract":"","PeriodicalId":17635,"journal":{"name":"Journal of Weed Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90535190","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Effective weed control by tank-mix application of post-sowing soil applied herbicides on dry direct-seeded rice fields in northern Kyushu","authors":"H. Ohdan","doi":"10.3719/weed.67.159","DOIUrl":"https://doi.org/10.3719/weed.67.159","url":null,"abstract":"","PeriodicalId":17635,"journal":{"name":"Journal of Weed Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76707242","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Summary In Japan, the spread of morning glory ( Ipomoea spp.) in soybean fields has become a serious problem. The aims of this study were to elucidate the biological characteristics of red morning glory ( I. coccinea L.) and pitted morning glory ( I. lacunosa L.) as well as to investigate the control effects of an application system with fluthiacet-methyl and imazamox ammonium salt. Field experi ments were conducted from 2019 to 2020 in Higashi-Hiroshima city, Hiroshima Pref., Japan. The cumulative emergence rate of the pitted morning glory increased earlier than that of the red morning glory. The cumulative emergence rate of the red morning glory and the pitted morning glory reached 90% at 16 to 27 days and 10 to 14 days after soybean sowing, respectively. In addition, for the pitted morning glory, the rate of leaf age development was higher than that of the red morning glory. The morning glory vines also devel oped earlier, and the initial growth tended to occur earlier in the season than in the red morning glory. In the application plots for the selective post-emergence herbicides, a negative correlation was found between dry matter weight of the pitted morning glory and the number of soybean seedlings. In contrast, a positive correlation was found between the dry matter weight of the pitted morning glory and the relative photosynthetic photon flux density in the soybean canopy. Therefore, to enhance the control effect of the pitted morning glory by selective post-emergence herbicides, it is important to increase the number of soybean seedlings and the effect of shade by promoting soybean growth.
{"title":"Effects of differences in biological characteristics between Ipomoea coccinea and I. lacunosa on control of new selective post-emergence herbicides","authors":"Hidenori Asami","doi":"10.3719/weed.67.129","DOIUrl":"https://doi.org/10.3719/weed.67.129","url":null,"abstract":"Summary In Japan, the spread of morning glory ( Ipomoea spp.) in soybean fields has become a serious problem. The aims of this study were to elucidate the biological characteristics of red morning glory ( I. coccinea L.) and pitted morning glory ( I. lacunosa L.) as well as to investigate the control effects of an application system with fluthiacet-methyl and imazamox ammonium salt. Field experi ments were conducted from 2019 to 2020 in Higashi-Hiroshima city, Hiroshima Pref., Japan. The cumulative emergence rate of the pitted morning glory increased earlier than that of the red morning glory. The cumulative emergence rate of the red morning glory and the pitted morning glory reached 90% at 16 to 27 days and 10 to 14 days after soybean sowing, respectively. In addition, for the pitted morning glory, the rate of leaf age development was higher than that of the red morning glory. The morning glory vines also devel oped earlier, and the initial growth tended to occur earlier in the season than in the red morning glory. In the application plots for the selective post-emergence herbicides, a negative correlation was found between dry matter weight of the pitted morning glory and the number of soybean seedlings. In contrast, a positive correlation was found between the dry matter weight of the pitted morning glory and the relative photosynthetic photon flux density in the soybean canopy. Therefore, to enhance the control effect of the pitted morning glory by selective post-emergence herbicides, it is important to increase the number of soybean seedlings and the effect of shade by promoting soybean growth.","PeriodicalId":17635,"journal":{"name":"Journal of Weed Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84271728","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Community composition and seasonal dynamics of upland weeds for establishing weed control systems in Okinawa, Japan","authors":"Y. Takaesu","doi":"10.3719/weed.67.70","DOIUrl":"https://doi.org/10.3719/weed.67.70","url":null,"abstract":"","PeriodicalId":17635,"journal":{"name":"Journal of Weed Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84345095","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Estimation of leaf area index based on spectral reflectance and its application to the evaluation of the spatial distribution of a kudzu-dominated community","authors":"H. Iwamoto, O. Watanabe","doi":"10.3719/weed.66.133","DOIUrl":"https://doi.org/10.3719/weed.66.133","url":null,"abstract":"","PeriodicalId":17635,"journal":{"name":"Journal of Weed Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90955599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
K. Sugiura, Tatsuya Yamaoka, Masahito Ito, Rina Okabayashi, S. Shirakura, Buichiro Shakudo
{"title":"Development of triafamone as a paddy rice herbicide","authors":"K. Sugiura, Tatsuya Yamaoka, Masahito Ito, Rina Okabayashi, S. Shirakura, Buichiro Shakudo","doi":"10.3719/weed.66.72","DOIUrl":"https://doi.org/10.3719/weed.66.72","url":null,"abstract":"","PeriodicalId":17635,"journal":{"name":"Journal of Weed Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88875244","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The effect of weed management methods on gramineous particularly Digitaria ciliaris coverage ratio in paddy levees","authors":"D. Iwata, M. Ishimoto, Yoshihiko Takahashi","doi":"10.3719/WEED.66.16","DOIUrl":"https://doi.org/10.3719/WEED.66.16","url":null,"abstract":"","PeriodicalId":17635,"journal":{"name":"Journal of Weed Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76658370","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Evolutionary ecology of herbicide resistance and its future perspective","authors":"Y. Fukano, C. Hosoda, N. Maruyama","doi":"10.3719/weed.66.59","DOIUrl":"https://doi.org/10.3719/weed.66.59","url":null,"abstract":"","PeriodicalId":17635,"journal":{"name":"Journal of Weed Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78947634","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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