Weed Biology and Management最新文献_第8页

Issue Information 问题信息

IF 1.4 4区农林科学

Weed Biology and Management Pub Date : 2019-12-01 DOI: 10.1111/wbm.12151

引用次数: 0

A comprehensive study on occurrence records of African neglected and underutilized weed species, Cleome gynandra L. (cat's whiskers) validating the ecogeographical range expansion in West Bengal, India 非洲被忽视和未充分利用的杂草Cleome gynandra L.(猫须)发生记录的综合研究，验证了印度西孟加拉邦生态地理范围的扩大

IF 1.4 4区农林科学

Weed Biology and Management Pub Date : 2019-12-01 DOI: 10.1111/wbm.12189

Ekta Bhattacharya, Rahul Bose, Suparna Mandal Biswas

引用次数: 2

Critical period for weed control in sesame production 芝麻生产中杂草防治的关键时期

IF 1.4 4区农林科学

Weed Biology and Management Pub Date : 2019-12-01 DOI: 10.1111/wbm.12188

Z. Karnas, D. Işık, N. Tursun, K. Jabran

{"title":"Critical period for weed control in sesame production","authors":"Z. Karnas, D. Işık, N. Tursun, K. Jabran","doi":"10.1111/wbm.12188","DOIUrl":"https://doi.org/10.1111/wbm.12188","url":null,"abstract":"Planning effective weed control in cropping systems requires exact appraisal of the weed intensity and duration of their competition with the crops. This 2‐year study was carried out in order to determine the critical weed control period in sesame fields. Related and relative crop yields were monitored and analyzed using a four‐parametric log‐logistic model. We recorded data from weed‐free plots and compared these with data from different periods of weed interference. In both the study years, the longer period of weed interference decreased the relative yield of sesame, whereas the yield was increased with increasing duration of the weed‐free period. A 51–78.7% decline in sesame yield was noted if the weeds were allowed to compete with the crop from planting to harvest. In the first year, the duration of the critical period for weed control (CPWC) was 177–820 growing degree days (GDD), which corresponded to 14–64 days after crop emergence (DAE), and between 170 and 837 GDD (13–64 DAE) in the second year; this was based on a 5% acceptable yield loss. The results of this study clearly elaborated that maintaining weed‐free conditions is compulsory from as early as the second week after the emergence of sesame plants, and this should be maintained at least until the ninth week to avoid sesame yield losses by more than 5%. These findings show that growers can benefit from CPWC to improve weed control in sesame production, including the efficacy of a weed control program and its cost.","PeriodicalId":23536,"journal":{"name":"Weed Biology and Management","volume":"19 1","pages":"121-128"},"PeriodicalIF":1.4,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1111/wbm.12188","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44985452","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}

引用次数: 9

Chemical and environmental factors driving germination of Solanum americanum seeds 促使美洲茄种子发芽的化学和环境因素

IF 1.4 4区农林科学

Weed Biology and Management Pub Date : 2019-11-14 DOI: 10.1111/wbm.12187

C. T. Forte, U. R. Nunes, A. C. Filho, L. Galon, Leonardo Chechi, R. Roso, André Dalponte Menegat, E. Rossetto, Milena Barretta Franceschetti

{"title":"Chemical and environmental factors driving germination of\u0000 Solanum americanum\u0000 seeds","authors":"C. T. Forte, U. R. Nunes, A. C. Filho, L. Galon, Leonardo Chechi, R. Roso, André Dalponte Menegat, E. Rossetto, Milena Barretta Franceschetti","doi":"10.1111/wbm.12187","DOIUrl":"https://doi.org/10.1111/wbm.12187","url":null,"abstract":"Solanum americanum Mill. is a weed that occurs with a number of crops, and it is known for its high seed production and its staggered germination. The objective of this work was to evaluate the germination behavior of S. americanum seeds under the influence of chemical and environmental factors. In the laboratory, we tested the effect on germination of (i) constant and alternating temperatures, (ii) seed washing, (iii) exposure time and concentration of chemical treatments and (iv) seeding depth and soil covered with plant residue on seedling emergence. The variables analyzed were germination percentage, germination rate index, seedling emergence and length of the seedlings. The results indicated that alternating temperatures are the main way to promote germination of S. americanum; however, chemical treatments can help to increase the germination percentage and rate index. There was no increase in germination with seed washing, with the exception of KNO₃ application. A GA₃ concentration of 0.84 g L⁻¹ and an exposure time of 21.22 h in 0.2% of KNO₃ promoted the highest germination of S. americanum. Germination occurs when seeds remain on the soil surface and are not covered by crop residue.","PeriodicalId":23536,"journal":{"name":"Weed Biology and Management","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2019-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1111/wbm.12187","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42777419","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}

引用次数: 4

Factors that influence the level of weed seed predation: A review 影响杂草种子捕食水平的因素综述

IF 1.4 4区农林科学

Weed Biology and Management Pub Date : 2019-09-01 DOI: 10.1111/wbm.12186

V. Sarabi

引用次数: 24

Evaluation of validity and limitations of the soybean canopy height‐to‐row spacing ratio as an onsite index to control weeds using diverse soybean accessions 利用不同大豆材料评价大豆冠层高行距作为现场杂草控制指标的有效性和局限性

IF 1.4 4区农林科学

Weed Biology and Management Pub Date : 2019-09-01 DOI: 10.1111/wbm.12184

S. Kurokawa, A. Kaga, Mai Tsuda, Daisuke Sekine, T. Shibuya

引用次数: 1

Effects of spermidine and salinity stress on growth and biochemical response of paraquat‐susceptibe and ‐resistant goosegrass ( Eleusine indica L.) 亚精胺和盐胁迫对百草枯敏感和抗性鹅草生长及生化反应的影响

IF 1.4 4区农林科学

Weed Biology and Management Pub Date : 2019-09-01 DOI: 10.1111/WBM.12182

Chen Deng, Jing Li, Simin Liu, Xiaofeng Zhu, Yong Chen, Xuefeng Shen

引用次数: 6

Misidentifications of Echinochloa crus‐galli var. formosensis as Echinochloa oryzicola as a result of similar cpDNA sequences 由于cpDNA序列相似，台湾紫衣紫藻(Echinochloa crus‐galli var. formosensis)被误认为oryzicola

IF 1.4 4区农林科学

Weed Biology and Management Pub Date : 2019-09-01 DOI: 10.1111/WBM.12185

K. Yasuda, Y. Nakayama

{"title":"Misidentifications of\u0000 Echinochloa crus‐galli\u0000 var.\u0000 formosensis\u0000 as\u0000 Echinochloa oryzicola\u0000 as a result of similar cpDNA sequences","authors":"K. Yasuda, Y. Nakayama","doi":"10.1111/WBM.12185","DOIUrl":"https://doi.org/10.1111/WBM.12185","url":null,"abstract":"Echinochloa crus‐galli (L.) Beauv. var. formosensis Ohwi (2n = 6x = 54, AABBCC genomes) and Echinochloa oryzicola (Vasinger) Vasinger (2n = 4x = 36, AABB) are major paddy weeds in East and Southeast Asia. E. oryzicola has been generally considered to be a paternal genome donor of E. crus‐galli s. l., which includes E. crus‐galli var. formosensis based on cpDNA sequences. Thus, molecular characterization using polymerase chain reaction‐restriction fragment length polymorphism analysis of cpDNA has been proposed as a reliable method for discriminating between the two species. In this study, we report that four accessions of E. crus‐galli var. formosensis from Okinawa, Nagasaki, Shizuoka and Tokyo had similar cpDNA sequences to E. oryzicola and had been misidentified as E. oryzicola using molecular methods. In addition, our results demonstrated that these accessions likely inherited their chloroplast genomes from E. oryzicola and not from an anonymous diploid species during polyploidization. Our findings provide new insights into the evolution of E. crus‐galli s. l. and suggest that identification using the cpDNA molecular method alone is not an appropriate approach to differentiate E. crus‐galli var. formosensis and E. oryzicola.","PeriodicalId":23536,"journal":{"name":"Weed Biology and Management","volume":"1 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1111/WBM.12185","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"63507045","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}

引用次数: 2

Issue Information 问题信息

IF 1.4 4区农林科学

Weed Biology and Management Pub Date : 2019-09-01 DOI: 10.1111/wbm.12150

引用次数: 0

Factors affecting seed germination and emergence of button grass ( Dactyloctenium radulans ) (R.Br.) P.Beauv. 钮花草种子萌发和出苗的影响因素P.Beauv。

IF 1.4 4区农林科学

Weed Biology and Management Pub Date : 2019-06-30 DOI: 10.1111/WBM.12183

M. Asaduzzaman, E. Koetz, Azizur Rahman

引用次数: 4