Weed Biology and Management最新文献_第10页

Germination characteristics of Sagittaria trifolia 三叶射手的发芽特性

IF 1.4 4区农林科学

Weed Biology and Management Pub Date : 2018-11-18 DOI: 10.1111/WBM.12162

Y. Ozaki, Yoshiko Shimono, T. Tominaga

引用次数: 3

Effect of simulated herbivory on bellyache bush (Jatropha gossypiifoliaL.) growth and implications for biological control 模拟草食对麻疯树(Jatropha gossypifolial .)生长的影响及其生物防治意义

IF 1.4 4区农林科学

Weed Biology and Management Pub Date : 2018-10-28 DOI: 10.1111/WBM.12159

N. Kumaran, C. Lockett, K. Dhileepan

{"title":"Effect of simulated herbivory on bellyache bush (Jatropha gossypiifoliaL.) growth and implications for biological control","authors":"N. Kumaran, C. Lockett, K. Dhileepan","doi":"10.1111/WBM.12159","DOIUrl":"https://doi.org/10.1111/WBM.12159","url":null,"abstract":"Understanding the ability of invasive plants to compensate for herbivory damage is crucial for their management, but this has been poorly studied in weed biological control. Bellyache bush (Jatropha gossypiifolia L.) is an invasive weed and a target for biological control in Australia. To understand the response of bellyache bush to herbivory, we simulated herbivory damage, under field conditions, at a site in north Queensland. Two size classes, that is, seedlings and mature plants were subjected to either defoliation, shoot damage or a combination of both, and the damage was inflicted once, twice or thrice at 6–7 weeks interval. All herbivory types significantly reduced growth and biomass when herbivory was inflicted twice or thrice, whereas the single application had limited impact. Shoot damage alone and defoliation + shoot damage had a greater negative impact than defoliation treatment on plant height, basal stem diameter, the number of leaves, root length and the number of shoot tips produced while increasing the number of dead shoot tips. Defoliation alone and defoliation + shoot damage had a greater negative impact on the number of flowers and fruit pods produced than shoot damage. The greater negative effects noticed when herbivory was inflicted twice or thrice suggest that multivoltine biological control agents that can inflict shoot damage and defoliation should be sought for the biological control of bellyache bush. © 2018 Weed Science Society of Japan","PeriodicalId":23536,"journal":{"name":"Weed Biology and Management","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2018-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1111/WBM.12159","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47894988","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

Effect of management practices for Stylosanthes hamata (L.) Taub. biomass cover on the weed species in different direct-seeding, mulch-based cropping systems 管理措施对滨花柱花草生长的影响陶布。不同直播、覆膜种植制度下杂草的生物量覆盖

IF 1.4 4区农林科学

Weed Biology and Management Pub Date : 2018-10-05 DOI: 10.1111/WBM.12158

A. Camara, A. Dieng, M. Diaw, G. Mergeai, J. Bindelle

{"title":"Effect of management practices for Stylosanthes hamata\u0000 (L.) Taub. biomass cover on the weed species in different direct-seeding, mulch-based cropping systems","authors":"A. Camara, A. Dieng, M. Diaw, G. Mergeai, J. Bindelle","doi":"10.1111/WBM.12158","DOIUrl":"https://doi.org/10.1111/WBM.12158","url":null,"abstract":"Weed management is a major challenge for smallholders’ adoption of conservation agriculture techniques. The phytological composition and weed biomass in five direct‐seeding cropping systems based on the millet–groundnut rotation, with permanent cover provided by Stylosanthes hamata (L.) Taub., were evaluated after 3 years in western Senegal. A transect was used to determine the phytological composition. The weed biomass was measured in five quadrats in the middle and at the end of the plant growth cycle. This study shows that S. hamata ground cover does not allow the effective control of weeds; high weed infestation was recorded in all direct‐seeding cropping systems (58–75% of the ground cover). A high diversity of weed species was observed in all treatments, dominated by Eragrostis ssp. and Dactyloctenium aegyptium Beauv. Cutting back and removing the aboveground biomass reduced the ground cover provided by S. hamata, lowered the weed species diversity and favored heliophilous species such as Eragrostis tremula but did not reduce weed infestation. Animal manure application did not, in the short term, affect the composition or structure of the weed species. However, it favored weed development and increased aboveground biomass. In the long term, this could affect weed seedbank and structure. Cutting back and removing the aboveground biomass of S. hamata resulted in lower weed diversity and higher crop yield. To achieve effective weed control, additional research on management techniques that would focus on the combination of cutting back vegetation and weeding along the crop seeding line will be needed.","PeriodicalId":23536,"journal":{"name":"Weed Biology and Management","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2018-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1111/WBM.12158","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48950719","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: 1

NARO International Symposium on Weedy Rice 国际杂草稻研讨会

IF 1.4 4区农林科学

Weed Biology and Management Pub Date : 2018-09-01 DOI: 10.1111/wbm.12153

引用次数: 0

Issue Information 问题信息

IF 1.4 4区农林科学

Weed Biology and Management Pub Date : 2018-09-01 DOI: 10.1111/wbm.12131

引用次数: 0

Plant growth inhibitors in turmeric ( Curcuma longa ) and their effects on Bidens pilosa 姜黄中的植物生长抑制剂及其对毛拜登的影响

IF 1.4 4区农林科学

Weed Biology and Management Pub Date : 2018-08-27 DOI: 10.1111/WBM.12157

Jesmin Akter, M. Islam, Kensaku Takara, M. Hossain, S. Gima, D. Hou

引用次数: 6

Effects of arbuscular mycorrhizal fungal symbiosis for control of Egyptian broomrape ( Orobanche aegyptiaca Pers.) in tomato ( Lycopersicon esculentum L.) cultivation 丛枝菌根真菌共生对番茄栽培中埃及帚枯病的防治效果

IF 1.4 4区农林科学

Weed Biology and Management Pub Date : 2018-08-27 DOI: 10.1111/WBM.12155

A. Tadayyon, M. Zafarian, S. Fallah, M. Bazoubandi

引用次数: 4

Non‐target‐site mechanism of glyphosate resistance in Italian ryegrass ( Lolium multiflorum ) 意大利黑麦草(Lolium multiflorum)抗草甘膦的非靶点机制

IF 1.4 4区农林科学

Weed Biology and Management Pub Date : 2018-08-24 DOI: 10.1111/wbm.12156

K. Kurata, Y. Niinomi, Yoshiko Shimono, M. Miyashita, T. Tominaga

{"title":"Non‐target‐site mechanism of glyphosate resistance in Italian ryegrass (\u0000 \u0000 Lolium multiflorum\u0000 \u0000 )","authors":"K. Kurata, Y. Niinomi, Yoshiko Shimono, M. Miyashita, T. Tominaga","doi":"10.1111/wbm.12156","DOIUrl":"https://doi.org/10.1111/wbm.12156","url":null,"abstract":"In Shizuoka Prefecture, Japan, glyphosate-resistant Lolium multiflorum is a serious problem on the levees of rice paddies and in wheat fields. The mechanism of resistance of this biotype was analyzed. Based on LD50, the resistant population was 2.8–5.0 times more resistant to glyphosate than the susceptible population. The 5-enolpyruvyl-shikimate-3-phosphate synthase (EPSPS) gene sequence of the resistant biotype did not show a non-synonymous substitution at Pro106, and amplification of the gene was not observed in the resistant biotype. The metabolism and translocation of glyphosate were examined 4 days after application through the direct detection of glyphosate and its metabolite aminomethylphosphonic acid (AMPA) using liquid chromatograph-tandem mass spectrometer (LC-MS/MS). AMPA was not detected in either biotype in glyphosate-treated leaves or the other plant parts. The respective absorption rates of the susceptible and resistant biotypes were 37.90 3.63% and 41.09 3.36%, respectively, which were not significantly different. The resistant biotype retained more glyphosate in a glyphosate-treated leaf (91.36 1.56% of absorbed glyphosate) and less in the untreated parts of shoots (5.90 1.17%) and roots (2.76 0.44%) compared with the susceptible biotype, 79.58 3.73%, 15.77 3.06% and 4.65 0.89%, respectively. The results indicate that the resistance mechanism is neither the acquisition of a metabolic system nor limiting the absorption of glyphosate but limited translocation of the herbicide in the resistant biotype of L. multiflorum in Shizuoka Prefecture.","PeriodicalId":23536,"journal":{"name":"Weed Biology and Management","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2018-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1111/wbm.12156","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41888331","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

Asian spiderflower ( Cleome viscosa ) germination ecology in southern Iran 伊朗南部亚洲蜘蛛花的萌发生态学

IF 1.4 4区农林科学

Weed Biology and Management Pub Date : 2018-08-21 DOI: 10.1111/WBM.12154

E. Elahifard, A. Derakhshan

{"title":"Asian spiderflower (\u0000 Cleome viscosa\u0000 ) germination ecology in southern Iran","authors":"E. Elahifard, A. Derakhshan","doi":"10.1111/WBM.12154","DOIUrl":"https://doi.org/10.1111/WBM.12154","url":null,"abstract":"Cleome viscosa is one of the most important weeds of warm‐season crops in southern Iran. Laboratory experiments were conducted to assess the impact of environmental factors on seed germination of C. viscosa. Freshly harvested seeds exhibited dormancy that was relieved (>90%) after immersion for 20 min in concentrated sulfuric acid. Regardless of the temperature regime, the final percentage of germination in light/dark (69.3%) was significantly higher than in complete darkness (58.3%). The optimum temperature for germination was 35/25°C in both light and dark. No germination was observed at constant temperatures of either 15 or 45°C. The thermal thresholds for seed germination, the base (Tb) and the mean ceiling germination temperatures (Tc₍₅₀₎) were estimated to be 18.8 and 39.9°C, respectively. A base water potential (Ψb₍₅₀₎) of −0.96 MPa was identified for C. viscosa seeds. The response threshold of C. viscosa to reduce 50% of maximum germination for salinity was estimated to be 255 mM. Seeds that were placed on the soil surface had the highest percentage of seedling emergence (77.3%), and no seedlings emerged from seeds placed at a depth of 6 cm. The findings of this study could help to improve the integrated weed management strategies for this species.","PeriodicalId":23536,"journal":{"name":"Weed Biology and Management","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2018-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1111/WBM.12154","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43028456","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

No‐tillage increases nitrogen scavenging by fallow weeds in a double‐season rice cropping system in China 免耕增加了两季水稻种植系统中休耕杂草对氮的清除作用

IF 1.4 4区农林科学

Weed Biology and Management Pub Date : 2018-06-28 DOI: 10.1111/WBM.12152

Min Huang, Peng Jiang, Xuefeng Zhou, Y. Zou

引用次数: 6