Journal of Weed Science and Technology最新文献_第4页

Weeding efficacy, crop injury and dispersion uniformity of the suspension concentrate of imazosulfuron, oxaziclomefone, pyraclonil and bromobutide in some trials of water inlet application with shortened irrigation time in paddy rice cultivation 缩短灌溉时间进水期施用吡唑隆、恶唑胺酮、吡唑尼、溴丁肽悬浮液的除草效果、作物伤害及分散均匀性

Journal of Weed Science and Technology Pub Date : 2020-01-01 DOI: 10.3719/WEED.65.158

K. Hamamura, M. Oshima, Naoki Nakamura, J. Okuno, T. Inagaki, J. Hashimoto

引用次数: 0

Current status of the Weed Science Society of Japan 日本杂草科学学会的现状

Journal of Weed Science and Technology Pub Date : 2020-01-01 DOI: 10.3719/weed.65.29

A. Uchino

引用次数: 3

Detection and spatial occupancy evaluation of kudzu community based on supervised classification of UAV imagery 基于无人机影像监督分类的葛藤群落检测与空间占用评价

Journal of Weed Science and Technology Pub Date : 2020-01-01 DOI: 10.3719/weed.65.95

H. Iwamoto, O. Watanabe

引用次数: 0

Diagnosis of sulfonylurea-resistance by the rooting method using commercial paddy herbicides in Monochoria vaginalis (Burm. fil.) Presl var. plantaginea (Roxb.) Solms-Laub. 商品水稻除草剂生根法诊断阴道单毛菌(Monochoria vaginalis, Burm)的磺脲抗性。费尔。)车前草(Roxb.)Solms-Laub。

Journal of Weed Science and Technology Pub Date : 2020-01-01 DOI: 10.3719/weed.65.1

K. Hamamura, Hidetoshi Abe

引用次数: 0

Differential response to seed burial depth on seedling emergence of four Avena fatua L. populations in western Ibaraki, Japan 种子埋深对日本茨城县西部4个草甸种群出苗的差异响应

Journal of Weed Science and Technology Pub Date : 2020-01-01 DOI: 10.3719/weed.65.103

M. Asai

{"title":"Differential response to seed burial depth on seedling emergence of four Avena fatua L. populations in western Ibaraki, Japan","authors":"M. Asai","doi":"10.3719/weed.65.103","DOIUrl":"https://doi.org/10.3719/weed.65.103","url":null,"abstract":"Summary Four populations of wild oats ( Avena fatua L.) collected from fields in western Ibaraki, Japan, were tested between 1999 and 2004 to determine the effect of seed burial depth on seedling emer gence. The persistence of seeds buried at a depth of 25 cm in the soil was also investigated. Plants were grown in the same field at NARO-ARC in Tsukuba, Ibaraki, Japan, and mature seeds were harvested. After 3 months in storage at room temperature, 100 seeds were buried in pots at 0, 5, 10, 15, and 20 cm depths with three replications for each depth. There were distinct differences in seedling emergence patterns between populations; most of the seeds in two populations emerged uniformly in the fall after the sowing year, whereas the third population emerged within a year. In the fourth population, there was a delay in the seedling emer gence pattern with the first flush occurring in early spring. The relationship between burial depth and emergence patterns differed between populations. In the three early-emerging populations, seeds buried at shallower depths emerged earlier, whereas in one late-emerging population, seeds buried at depths of 15 cm and 20 cm emerged earlier than those buried at 10 cm or less. For seeds buried at a depth of 25 cm, survival was associated with the emergence patterns. Most of the seeds in the early emergence population had germinated in the soil within 6 months, whereas more than 50% of the seeds in the late emergence population did not germinate. These results indicate that the emergence uniformity of wild oats is related to the depth of seed burial. Additionally, inter population variation in A. fatua germination requirements were found within a narrow regional scale in Japan.","PeriodicalId":17635,"journal":{"name":"Journal of Weed Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91149581","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}

引用次数: 1

A questionnaire survey to municipal governments in Tochigi Prefecture on weed and wildlife damages 对枥木县市政府进行杂草和野生动物损害的问卷调查

Journal of Weed Science and Technology Pub Date : 2020-01-01 DOI: 10.3719/WEED.65.129

Tsutomu Nozawa-Takeda, Meifang Yan, Y. Kodera, M. Aoyama, T. Nishio, M. Ogasawara

引用次数: 0

Occurrence of weeds in soybean fields of Oita Prefecture 大分县大豆田杂草发生情况

Journal of Weed Science and Technology Pub Date : 2020-01-01 DOI: 10.3719/weed.65.31

Yoshiki Kawano, C. Kakihara, Takeo Chikanori, M. Matsuo, A. Nishiwaki

{"title":"Occurrence of weeds in soybean fields of Oita Prefecture","authors":"Yoshiki Kawano, C. Kakihara, Takeo Chikanori, M. Matsuo, A. Nishiwaki","doi":"10.3719/weed.65.31","DOIUrl":"https://doi.org/10.3719/weed.65.31","url":null,"abstract":"To determine the distribution pattern of weeds in soybean field of Oita prefecture, field surveys were conducted from mid-August to September (the growing stage of soybean) and November (the maturing stage of soybean) in 2015 and 2016, respectively. The dominance of each weed in different fields was evaluated at six levels based on the observations made in the fields. Moreover, the percentage of occurrence of each weed was calculated from the data obtained. The weed species with high percentage of occurrence (occurring in more than 30% fields) were Echinochloa spp., Digitaria ciliaris (Retz.) Koeler, Amaranthus hybridus L., Physalis angulata L. var. angulata and Commelina caroliniana Walter. Among the invasive weeds with high percentage of occurrence, A. hybridus L. and P. angulata L. var. angulata occurred over the entire Oita Prefecture, but C. caroliniana Walter occurred mainly in the northern region. This is probably because C. caroliniana Walter invaded the soybean field later than did the other two species. The weeds with medium occurrence percentage in the fields were those found in the northern region; C. caroliniana Walter was more abundant than A. hybridus L. and P. angulata L. var. angulata . From these results, it can be said that C. caroliniana Walter might spread quickly after invading the soybean fields. In addition, four invasive Ipomoea spp. and Sicyos angulatus L. were confirmed to be present in the soybean field. This is first time that the presence of S. angulatus L. in the soybean fields of Kyushu region is being confirmed.","PeriodicalId":17635,"journal":{"name":"Journal of Weed Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83769812","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}

引用次数: 1

Intraspecific variation of catechins and caffeine sensitivity in Stellaria media growing in tea garden 茶园紫花菌中儿茶素和咖啡因敏感性的种内变异

Journal of Weed Science and Technology Pub Date : 2020-01-01 DOI: 10.3719/weed.65.5

H. Inagaki, Masashi Tsushi

引用次数: 1

Modes of action of auxinic herbicides and allelochemicals to induce hormonal actions and/or overproduction of reactive oxygen species 抗氧除草剂和化感物质诱导激素作用和/或活性氧过量产生的作用模式

Journal of Weed Science and Technology Pub Date : 2020-01-01 DOI: 10.3719/weed.65.45

Y. Sunohara

引用次数: 0

Effects of photoperiod on growth, flower bud appearance and seed production of four morningglory (Ipomoea) species 光周期对四种牵牛花生长、花芽外观和种子产生的影响

Journal of Weed Science and Technology Pub Date : 2020-01-01 DOI: 10.3719/weed.65.110

T. Shibuya, K. Nakatani

引用次数: 0