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Morphological variation, distribution and relationship of weedy rice (Oryza sativa L.) in Peninsular Malaysia Weed Biol. Manag. (IF 0.892) Pub Date : 2021-04-11 Intan Filzah Mahmod, Mohd Zuwairi Saiman, Zulqarnain Mohamed, Muhammad Nazri Ishak, Muhamad Shakirin Mispan
The dynamic changes in agricultural practices have negatively impacted rice cultivation resulting in serious weedy rice (Oryza sativa L.) infestations. In this study, field surveys were conducted at six granaries to evaluate the abundance, spatial‐distribution patterns, and morphological characteristics of weedy rice in Peninsular Malaysia. An average of 5.28 plants/m2 weedy rice density was recorded
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The dynamic linkage between phytotoxicity and metabolites in Wedelia trilobata soils Weed Biol. Manag. (IF 0.892) Pub Date : 2021-03-25 Kamalrul Azlan Azizan, Arief Izzairy Zamani, Sarah Ibrahim, Nornasuha Yusoff, Nurul Haizun Abdul Ghani, Mohamad Firdaus Nawawi
The phytotoxicity of soils under Wedelia trilobata has been described, but the dynamic between phytotoxic and metabolites in W. trilobata soil and the restriction posed by soil properties have been poorly addressed. In this study, the phytotoxic variation of W. trilobata soil in response to the changes in soil properties and soil metabolomics was determined at monthly intervals for 11 months using
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Seed germination behavior of glyphosate‐resistant and susceptible Italian ryegrass (Lolium multiflorum Lam.) Weed Biol. Manag. (IF 0.892) Pub Date : 2020-12-23 Afonso Henrique Schaeffer, Diógenes Cecchin Silveira, Otávio Augusto Schaeffer, Nadia Canali Lângaro, Leandro Vargas
Ryegrass (Lolium multiflorum Lam.) is one of the most difficult annual weeds to control in cultivation systems worldwide, especially in temperate regions. The widespread use of herbicides in the past two decades has selected resistant biotypes of ryegrass in crops in Southern Brazil. Ryegrass seeds are dormant when disseminated and germination can be staggered over time (crop‐growing season). Knowledge
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Isophorone‐induced light‐independent lipid peroxidation and loss of cell membrane integrity Weed Biol. Manag. (IF 0.892) Pub Date : 2021-02-15 Masataka Izumi, Yukari Sunohara, Takuya Yamaguchi, Yoshiharu Fujii, Hiroshi Matsumoto
Isophorone (3,5,5‐trimethylcyclohex‐2‐en‐1‐one) is a plant‐derived volatile compound with strong phytotoxic activity. Here, we aimed to elucidate the mechanism of action of isophorone, and to this end, the effects of isophorone on shoot fresh weight, chlorophyll content, electrolyte leakage, and lipid peroxidation of Lactuca sativa L. and photosynthetic electron transport activity in chloroplast isolated
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A novel pre‐emergence herbicide (Diclosulam) as an environmentally friendly weed management option in peanut and its phytotoxicity evaluation Weed Biol. Manag. (IF 0.892) Pub Date : 2021-02-15 Har N. Meena, Ranjeet S. Yadav, Navin K. Jain, Mayank Yadav
A two‐season field experiment was conducted to evaluate the efficacy of diclosulam compared with recommended doses of pendimethalin and oxyfluorfen for weed management in peanut. Persistence of diclosulam in oil, de‐oiled cake, haulm of peanut, and soil was also studied. Diclosulam 22 and 26 g a.i. ha−1, and a weed‐free check had a high pod yield due to more mature pods and their mass. Pre‐emergence
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Establishing targeted control of creeping perennial weeds with soil‐active chemical injections: Assessment of subterranean bud responses in contact Weed Biol. Manag. (IF 0.892) Pub Date : 2021-02-10 Misako Ito, Kanji Ito
Increased infestation of aggressive creeping perennial weeds is a significant problem in urban vegetation management programs. These weeds produce vigorous biomass and extensive underground networks of either rhizomes or creeping roots that easily regrow from numerous buds. Foliar application of proper systemic herbicides has been a most effective way to suppress regrowth from underground creeping
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Allelopathy and allelopathic substances of mango (Mangifera indica L.) Weed Biol. Manag. (IF 0.892) Pub Date : 2020-12-28 Hisashi Kato‐Noguchi, Denny Kurniadie
Homegarden, traditional agroforestry system in tropical and subtropical regions, sustains the availability of daily necessities. Mango (Mangifera indica L.) is an essential tree in the homegardens and is used for multiple purposes such as food, folk medicine, fuel, timber, and apiculture. The interaction between mango and weeds or crops has been evaluated in terms of allelopathy and the evidence of
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Occurrence of spilled genetically modified oilseed rape growing along a Japanese roadside over 10 years Weed Biol. Manag. (IF 0.892) Pub Date : 2020-12-28 Nobuyoshi Nakajima, Toru Nishizawa, Mitsuko Aono, Masanori Tamaoki, Hikaru Saji
To map the distribution of feral oilseed rape (Brassica napus L.) in Japan, we conducted a roadside survey along 19 km of Route 51 for 10 years, from 2005 to 2014. We found more than 2,000 plants in the first 2 years. The number decreased to 150–305 from 2007 to 2010, and to only 27 in 2014, likely owing to extensive road repairs. Three areas of high frequency were found. One area features frequent
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Reduced overwinter survival of unharvested corn in fields with cover crops Weed Biol. Manag. (IF 0.892) Pub Date : 2020-12-01 Alexis L. Kosins, Abby‐Gayle A. Prieur, Robert K. Swihart
Volunteer corn arising from unharvested kernels in fields is a common problem that reduces yield of crops like soybean in intensive rotational agricultural systems. Over the last decade, farmers in the Midwestern United States have increased use of cover crops to improve soil health and suppress weeds in corn‐soybean rotational agriculture. We assessed whether the fate of unharvested corn kernels in
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Total phenol, anthocyanin, and terpenoid content, photosynthetic rate, and nutrient uptake of Solanum nigrum L. and Digitaria sanguinalis L. as affected by arbuscular mycorrhizal fungi inoculation Weed Biol. Manag. (IF 0.892) Pub Date : 2020-09-28 Sakineh Rashidi, Ali Reza Yousefi, Majid Pouryousef, Nieves Goicoechea
Over the last decades, tillage, chemical fertilizers, and pesticides have reduced the beneficial fungal population size in arable soils. Though soil inoculation can be a practical way to restore arbuscular mycorrhizal fungi (AMF) population size, weeds may also be benefited, as well. This study was aimed to evaluate the effect of three AMF species (Funneliformis mosseae, Rhizoglomus fasciculatum, and
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Regenerative capacity and response to pre‐emergent herbicides by stolon fragments of triquetrous murdannia (Murdannia triquetra) in rice Weed Biol. Manag. (IF 0.892) Pub Date : 2020-09-28 Wei Tang, Zhiqi Zhong, Jie Chen, Xiaoyue Yu, Yongjie Yang, Yongliang Lu
Triquetrous murdannia is an annual stoloniferous weed commonly found in wheat‐rice rotation fields in China. Disturbance after wheat harvesting can fragment stolons of triquetrous murdannia, and the regeneration of these fragments may contribute to the spread of this weed. In this study, the regenerate capacity and response to pre‐emergence (PRE) herbicides of stolon fragment of triquetrous murdannia
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Crop residue retention suppresses seedling emergence and biomass of winter and summer Australian weed species Weed Biol. Manag. (IF 0.892) Pub Date : 2020-09-09 Ahmadreza Mobli, Bhagirath Singh Chauhan
Crop residue retention could affect the emergence and biomass of weeds in different ways. A summer and winter pot study was conducted to evaluate the effect of different amounts of sorghum and wheat residue on the emergence and biomass of 12 summer and winter Australian weeds. The equivalent amount of sorghum residue to 0, 1, 2, 4 and 6 t/ha was used in the summer study and winter weed seeds were covered
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The effects of desiccation on broad‐leaved dock (Rumex obtusifolius) and curled dock (Rumex crispus) root fragment regeneration Weed Biol. Manag. (IF 0.892) Pub Date : 2020-06-29 Khalid S. Alshallash, Paul E. Hatcher
Fresh root fragments of Rumex crispus and Rumex obtusifolius, which initially contain 65–70% moisture, progressively lose moisture when desiccated under conditions matching summer weather in southeast England. The likelihood of shoot emergence and the time it took in glasshouse conditions were both affected by desiccation, with R. crispus the most affected up to 48 hr and R. obtusifolius slower to
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Increased free amino acid contents of the invasive weed Ageratina adenophora and the effects on its specialist herbivore Procecidochares utilis Weed Biol. Manag. (IF 0.892) Pub Date : 2020-06-29 Xin Gao, Yuanyuan Sun, Yuehui Diao, Yunpeng Zhao, Rodríguez‐Leyva Esteban, Guoqing Yang
In order to verify the escape‐from‐enemy hypothesis from the changes of nutrient substance and fitness of natural enemies on alien plants, contents of free amino acids in native and invasive plant populations of Ageratina adenophora and life history parameters of specialist herbivore Procecidochares utilis reared on these plants were investigated. Our results showed that the contents of glycine, valine
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Maize–soybean intercropping effect on yield productivity, weed control and diversity in northern Ghana Weed Biol. Manag. (IF 0.892) Pub Date : 2020-06-29 Albert Berdjour, Ibrahim Yakamba Dugje, Israel Kwame Dzomeku, Nurudeen Abdul Rahman
The cereal–legume cropping system is a common practice across the tropical world. However, there are limited quantitative data on the effect of cereal–legume intercropping on weed species diversity. A study was conducted in the Guinea savanna zone of Ghana to evaluate the effect of maize–soybean intercropping on yield productivity and weed species control. The treatments used include three maize maturity
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A tetraploid Echinochloa with plagiotropic tillers: Its distribution and habitat in the northern part of the main island of Japan Weed Biol. Manag. (IF 0.892) Pub Date : 2020-06-29 Kentaro Yasuda, Kaoru Mori, Yuichiro Nakayama
An annual Echinochloa with plagiotropic tillers (semi‐erect type) was found on a paddy levee in Miyagi prefecture in Japan. This semi‐erect type had tetraploid chromosome numbers (2n = 36) and would be expected to be E. oryzicola. However, its appearance was distinct from that of E. oryzicola. To collect seed samples and clarify its distribution and habitat, exploration and collection surveys were
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Enhanced weed‐crop competition effects on growth and seed production of herbicide‐resistant and herbicide‐susceptible annual sowthistle (Sonchus oleraceus) Weed Biol. Manag. (IF 0.892) Pub Date : 2020-05-12 Ahmadreza Mobli, Sahil, Rajpaul Yadav, Bhagirath S. Chauhan
Enhanced crop competition could aid in the management of annual sowthistle (Sonchus oleraceus L.), a dominant weed of Australian cropping systems. A two‐year pot study was conducted to evaluate the effect of wheat (Triticum aestivum L.) planting densities (0, 82, and 164 wheat plants/m2) on growth and seed production of glyphosate‐resistant (GR) and glyphosate‐susceptible (GS) biotypes of annual sowthistle
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Weedy rice: An expanding problem in direct‐seeded rice in the Philippines Weed Biol. Manag. (IF 0.892) Pub Date : 2020-04-01 Leylani M. Juliano, Dindo King M. Donayre, Edwin C. Martin, Jesusa C. Beltran
Weedy rice is morphologically similar to cultivated rice (Oryza sativa L.). It has biological characteristics that identify it as a weed. Its important weedy characteristics, that is, early and heavy seed shattering, makes it very difficult to control. Weedy rice has not been reported to be an important weed problem in transplanted, flooded rice. However, the shift to direct‐seeded rice (DSR) due to
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The influence of the soil management systems on aboveground and seed bank weed communities in olive orchards Weed Biol. Manag. (IF 0.892) Pub Date : 2020-03-22 Antonio J. Carpio, Ángel Lora, Enriqueta Martín‐Consuegra, Rafael Sánchez‐Cuesta, Francisco S. Tortosa, Jesús Castro
The biodiversity of farmed landscapes is, in the context of agricultural intensification, a key aspect with regard to improving the sustainability of agroecosystems. Olive groves are undergoing rapid changes because of the spread of intensive farming systems, which may have negative environmental impacts. This paper reports a survey on the aboveground flora and seed banks in five olive groves located
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Isolation and identification of two phytotoxic compounds from the medicinal plant Cassia alata L. Weed Biol. Manag. (IF 0.892) Pub Date : 2020-01-26 Krishna Rany Das, Keitaro Iwasaki, Kiyotake Suenaga, Hisashi Kato‐Noguchi
Cassia alata (Caesalpiniaceae), an ornamental shrub, has many biological properties such as antifungal and antibacterial activities. Several bioactive and phytotoxic compounds have already been isolated from C. alata. Phytotoxic substances from plants have drawn attention as an alternative biological approach to control weeds. Thus, we conducted this research to explore other phytotoxic compounds in
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Critical period for weed control in sesame production Weed Biol. Manag. (IF 0.892) Pub Date : 2019-12-26 Zeynep Karnas, Doğan Isik, Nihat Tursun, Khawar Jabran
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
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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 Weed Biol. Manag. (IF 0.892) Pub Date : 2019-12-26 Ekta Bhattacharya, Rahul Bose, Suparna Mandal Biswas
Cleome gynandra L., commonly known as cat's whiskers, is an erect, branched, annual herb, belonging to the family Cleomaceae. The species is thought to have originated in tropical Africa and Southeast Asia, and thereafter have spread to other tropical and subtropical countries in the Northern and Southern hemispheres. Cat's whiskers is a highly nutritious vegetable and also possesses numerous medicinal
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Chemical and environmental factors driving germination of Solanum americanum seeds Weed Biol. Manag. (IF 0.892) Pub Date : 2019-11-14 César Tiago Forte, Ubirajara Russi Nunes, Alberto Cargnelutti Filho, Leandro Galon, Leonardo Chechi, Rodrigo Roso, André Dalponte Menegat, Emanuel De Oliveira Rossetto, Milena Barretta Franceschetti
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)
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Factors that influence the level of weed seed predation: A review Weed Biol. Manag. (IF 0.892) Pub Date : 2019-09-05 Vahid Sarabi
Herbicides applied alone have failed to reduce weed populations in agricultural ecosystems. The use of this management strategy has followed other problems such as damage to ecosystems and organisms that live in it. Herbicide resistance in weeds has also occurred more quickly based on the application of herbicides. Today, most scientists are looking for new integrated weed management programs in agricultural
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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 Weed Biol. Manag. (IF 0.892) Pub Date : 2019-08-29 Shunji Kurokawa, Akito Kaga, Mai Tsuda, Daisuke Sekine, Tomoko Shibuya
A canopy height‐to‐row spacing ratio (CHRSR) of 1.0 is expected to be a simple and practical onsite index for soybean growers to determine when further weed control is no longer necessary. This is decided when relative photosynthetic photon flux density (PPFD) reaches 50% under the soybean canopy. To evaluate the validity of this index, a 2‐year field experiment was conducted to compare days after
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Misidentifications of Echinochloa crus‐galli var. formosensis as Echinochloa oryzicola as a result of similar cpDNA sequences Weed Biol. Manag. (IF 0.892) Pub Date : 2019-08-05 Kentaro Yasuda, Yuichiro Nakayama
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
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Factors affecting seed germination and emergence of button grass (Dactyloctenium radulans) (R.Br.) P.Beauv. Weed Biol. Manag. (IF 0.892) Pub Date : 2019-06-30 Md Asaduzzaman, Eric Koetz, Azizur Rahman
Button grass (Dactyloctenium radulans) is a native, widely spread summer grass weed species in Australia. However, limited information is available on the seed germination biology of this species. Experiments were conducted to evaluate the effect of environmental factors on the germination and emergence of two populations of D. radulans. The seeds of these populations were collected separately from
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Effects of spermidine and salinity stress on growth and biochemical response of paraquat‐susceptibe and ‐resistant goosegrass (Eleusine indica L.) Weed Biol. Manag. (IF 0.892) Pub Date : 2019-06-25 Chengxi Deng, Jing Li, Simin Liu, Xiaofeng Zhu, Yong Chen, Xuefeng Shen
This study aimed to investigate the interaction effect of spermidine (Spd) and salinity stress on growth, photosynthetic rate, antioxidant system and free polyamines (PAs) contents of goosegrass (Eleusine indica L.) seedlings. E. indica was raised in a growth chamber under normal and toxic salt stress (100 mM of NaCl) and sprayed with 0 and 1.00 mM of Spd. The degree of growth inhibition caused by
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Phytotoxic potential of Chrysopogon aciculatus (Retz.) Trin. (Poaceae) Weed Biol. Manag. (IF 0.892) Pub Date : 2019-06-12 Md. Shafiqul Islam, Farhana Zaman, Arihiro Iwasaki, Kiyotake Suenaga, Hisashi Kato‐Noguchi
The creeping weed, Chrysopogon aciculatus (Retz.) Trin., is widely known for its use as folk medicine, while its phytotoxic potential has not been examined. Therefore, we carried out an investigation into the phytotoxic potential of C. aciculatus to identify phytotoxic substances. C. aciculatus extracts showed inhibitory effects on shoot and root growth of cress, lettuce, rapeseed, and Italian ryegrass
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Performance of Bangladesh indigenous rice in a weed infested field and separation of allelopathy from resource competition Weed Biol. Manag. (IF 0.892) Pub Date : 2019-05-23 Sheikh Muhammad Masum, Mohammad Amzad Hossain, Hikaru Akamine, Jun‐Ichi Sakagami, Takahiro Ishii, Ichiro Nakamura, Md. Asaduzzaman, Prasanta Chitta Bhowmik
This study aimed to identify the potential allelopathic indigenous rice (Oryza sativa L. ssp. indica) varieties from Bangladesh using a performance study in a weed‐infested field and to assess the extent of allelopathic interference relative to resource competition in a glasshouse experiment. Six varieties – namely, “Boterswar,” “Goria,” “Biron” and “Kartiksail” as the most allelopathic, “Hashikolmi”
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Utilization of Bidens pilosa var. radiata (Sch. Bip.) Sherff integrated with water irrigation for paddy weed control and rice yield production Weed Biol. Manag. (IF 0.892) Pub Date : 2019-03-31 Thanatsan Poonpaiboonpipat, Saiwaree Poolkum
The application of allelopathic plant materials combined with an agricultural production method is a concept that can be used to manage weeds during rice production. This research investigated the effects of the utilization of Bidens pilosa var. radiata integrated with water irrigation for weed control and rice production. B. pilosa and water extract exerted more toxicity against Echinochloa crus‐galli
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Phytotoxic activity of Chinese violet (Asystasia gangetica (L.) T. Anderson) and two phytotoxic substances Weed Biol. Manag. (IF 0.892) Pub Date : 2019-01-10 Masahiko Suzuki, M. A. Chozin, Arihiro Iwasaki, Kiyotake Suenaga, Hisashi Kato‐Noguchi
Chinese violet (Asystasia gangetica (L.) T. Anderson) is a perennial invasive weed belonging to Acanthaceae. Leaves of this weed have been suggested to possess phytotoxic activity. However, phytotoxic substances in this weed have not yet been reported. Therefore, the present study investigated phytotoxic activity of Chinese violet extracts and phytotoxic substances. The extracts of Chinese violet leaves
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Seed germination ecology of creeping mannagrass (Glyceria acutiflora) and response to POST herbicides Weed Biol. Manag. (IF 0.892) Pub Date : 2019-01-10 Wei Tang, Yuan Xie, Yongliang Lu, Jie Chen
Creeping mannagrass is a perennial grass weed widely distributed in China and is becoming increasingly problematic in nurseries and landscapes in some regions. Understanding the germination ecology and response to commonly available POST herbicides of this weed is critical to determining its adaptive capabilities and potential for infestation, and assist in the development of effective control strategies
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Testing of an integrated regime for effective and sustainable control of invasive Crofton weed (Ageratina adenophora) comprising the use of natural inhibitor species, activated charcoal, and fungicide Weed Biol. Manag. (IF 0.892) Pub Date : 2019-01-08 Saichun Tang, Yumei Pan, Chunqiang Wei, Xiangqin Li, Shihong Lü
Crofton weed is a major invasive species in China. It exhibits superior growth characteristics and can outcompete with native species via allolepathic effects and modulation of the soil fungal microbiome. The simple removal of invading plants will not ensure restoration of the habitat due to the persistence of allelochemicals and viable seeds in the surrounding soil. An orthogonal experimental design
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Variations in the germination characteristics in response to environmental factors between the hairy and spiny seeds of hedge parsley (Torilis arvensis Huds.) Weed Biol. Manag. (IF 0.892) Pub Date : 2018-12-18 Rezvan Payamani, Iraj Nosratti, Masoomeh Amerian
Torilis arvensis Huds. produces two types of mericarps, spiny and hairy (referred to as seeds hereafter), but little information is available on their germination behavior. Therefore, the purpose of this study was to determine the different germination characteristics of hairy and spiny seeds in T. arvensis in response to environmental factors. Both seed types were dormant at harvesting, but the spiny
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Reciprocal transplant experiments testing the performance of common and early flowering types of Imperata cylindrica in Japan Weed Biol. Manag. (IF 0.892) Pub Date : 2018-12-04 Yasuyuki Nomura, Kentaro Yasuda, Aya Nishiwaki, Tohru Tominaga
We performed reciprocal transplant experiments in Miyazaki, Kyoto, and Akita to differentiate the effects of environmental factors and genetic variations on biomass production and heading time in common (C‐) and early flowering (E‐) types of Imperata cylindrica. In our experiments, we used 10 and 11 accessions of the C‐ and E‐types, respectively, collected across the distribution range of the two types
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Germination characteristics of Sagittaria trifolia Weed Biol. Manag. (IF 0.892) Pub Date : 2018-11-18 Yufuko Ozaki, Yoshiko Shimono, Tohru Tominaga
Sagittaria trifolia is a noxious paddy weed in East Asia. This weed propagates both sexually and asexually. Information on the role of sexual reproduction in the spread of herbicide‐resistant gene(s) and control of S. trifolia is important. Therefore, effects of oxygen, light, and temperature on the germination; germination percentages of fresh and stored seeds; and seed dormancy cycles were clarified
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Effect of simulated herbivory on bellyache bush (Jatropha gossypiifolia L.) growth and implications for biological control Weed Biol. Manag. (IF 0.892) Pub Date : 2018-10-28 Nagalingam Kumaran, Catherine Lockett, Kunjithapatham Dhileepan
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,
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Effect of management practices for Stylosanthes hamata (L.) Taub. biomass cover on the weed species in different direct‐seeding, mulch‐based cropping systems Weed Biol. Manag. (IF 0.892) Pub Date : 2018-10-05 Abib Camara, Abdoulaye Dieng, Mamadou T. Diaw, Guy Mergeai, Jérôme Bindelle
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
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Effects of arbuscular mycorrhizal fungal symbiosis for control of Egyptian broomrape (Orobanche aegyptiaca Pers.) in tomato (Lycopersicon esculentum L.) cultivation Weed Biol. Manag. (IF 0.892) Pub Date : 2018-08-27 Ali Tadayyon, Mojtaba Zafarian, Sina Fallah, Mohammad Bazoubandi
The present study assessed the effect of arbuscular mycorrhizal fungi (AMF) on broomrape (Orobanche aegyptiaca Pers.) control to determine its effects on tomato (Lycopersicon esculentum L.) growth indices. This experiment was carried out using a randomized complete block design with four replications. The treatments included three strains of AMF (Glomus mosseae, Glomus intraradices and Glomuse hoe)
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Plant growth inhibitors in turmeric (Curcuma longa) and their effects on Bidens pilosa Weed Biol. Manag. (IF 0.892) Pub Date : 2018-08-27 Jesmin Akter, Md. Zahorul Islam, Kensaku Takara, Md. Amzad Hossain, Shinichi Gima, De‐Xing Hou
Turmeric (Curcuma spp.) has numerous biological activities, including anticancer, antibacterial, antifungal and insecticidal properties. Here, we evaluated the plant growth‐inhibitory activities of two cultivars of Curcuma longa (C. longa; Ryudai gold and Okinawa ukon) against radish, cress, lettuce and Bidens pilosa (B. pilosa). The methanol extracts of both turmeric varieties inhibited the seed germination
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Non‐target‐site mechanism of glyphosate resistance in Italian ryegrass (Lolium multiflorum) Weed Biol. Manag. (IF 0.892) Pub Date : 2018-08-24 Kohei Kurata, Yuki Niinomi, Yoshiko Shimono, Masahiro Miyashita, Tohru Tominaga
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
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Asian spiderflower (Cleome viscosa) germination ecology in southern Iran Weed Biol. Manag. (IF 0.892) Pub Date : 2018-08-21 Elham Elahifard, Abolfazl Derakhshan
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
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No‐tillage increases nitrogen scavenging by fallow weeds in a double‐season rice cropping system in China Weed Biol. Manag. (IF 0.892) Pub Date : 2018-06-28 Min Huang, Peng Jiang, Xuefeng Zhou, Yingbin Zou
Naturally occurring fallow weeds are an alternative strategy for reducing nitrogen (N) loss from annual cropping systems by scavenging inorganic N from the soil. Soil tillage is a major factor affecting the growth of weed populations. This study was carried out to determine the effect of a no‐tillage (NT) system on the N scavenging capacity of fallow weeds in a double‐season rice cropping system. A
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Development of herbicides for paddy rice in Japan Weed Biol. Manag. (IF 0.892) Pub Date : 2018-06-26 Kenshiro Hamamura
The history of the development of herbicides for mechanized paddy rice production in Japan can be characterized by a combination of products with several ingredients, by large availability in formulation, and by application methods for labor saving in accordance with natural and social conditions of the country, for instance, around 40% of national land located in hilly and mountainous areas, small
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Weedy rice represents an emerging threat to transplanted rice production systems in Japan Weed Biol. Manag. (IF 0.892) Pub Date : 2018-06-11 Toshiyuki Imaizumi
Weedy rice is a conspecific weed of cultivated rice (Oryza sativa L.) and is a primary weed of direct‐seeded rice production systems worldwide. The shift in the method of establishing rice, that is, from transplanting to direct seeding, is considered the main reason for the emergence of weedy rice in Asia and, more recently, Japan. Japan has increasingly adopted directly seeded rice, even though this
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Review of the biotechnological applications of rice allelopathy in agricultural production Weed Biol. Manag. (IF 0.892) Pub Date : 2018-05-21 Ill‐Min Chung, Sung‐Kyu Park, Muthu Thiruvengadam, Ji‐Hee Lee, Seung‐Hyun Kim, Govindasamy Rajakumar
An improvement in the allelopathic potential of rice will have a great impact on both low‐input and high‐input management systems. Allelopathy alone is not likely to replace other weed control practices, but it surely functions as a component of integrated weed management technology. Allеlораthу is thе рrосеѕѕ whеrеbу аn organic сhеmісаl (аllеlосhеmісаl) that is rеlеаѕеd from one рlаnt influences the
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Plant growth inhibitory activity and active substances with allelopathic potential of cogongrass (Imperata cylindrica) rhizome Weed Biol. Manag. (IF 0.892) Pub Date : 2018-04-06 Masahiko Suzuki, Tohru Tominaga, Osamu Ohno, Arihiro Iwasaki, Kiyotake Suenaga, Hisashi Kato‐Noguchi
Cogongrass (Imperata cylindrica [L.] Raeusch.) is a perennial rhizomatous grass that belongs to the Poaceae and is widely distributed in tropical, subtropical and temperate regions over the world. The grass is strongly invasive and is suggested to have allelopathic potential. However, limited information is available on allelopathic substances in cogongrass rhizomes. Therefore, the allelopathic potential
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Spread of glyphosate‐resistant sourgrass (Digitaria insularis): Independent selections or merely propagule dissemination? Weed Biol. Manag. (IF 0.892) Pub Date : 2018-03-25 Hudson K. Takano, Rubem S. de Oliveira, Jamil Constantin, Claudete A. Mangolim, Maria de F.P.S. Machado, Maycon R.R. Bevilaqua
The first reports of glyphosate‐resistant (GR) sourgrass (Digitaria insularis) came from Paraguay (2005) and from South and Southeast Brazil, in Paraná (2008), and São Paulo state (2009). The hypothesis of this research is that the evolution of these resistant populations might have occurred independently. To test this hypothesis, a dose–response experiment was conducted in order to confirm resistance
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Breeding systems and seed production for six weedy taxa of Bidens Weed Biol. Manag. (IF 0.892) Pub Date : 2018-02-12 Jian‐Hua Hao, Saurav Bhattacharya, Liang Ma, Li‐Xin Wang
Successful reproduction is considered to be the major determining factor for a weedy population to establish, colonize and infest. The breeding systems and seed production of six weedy taxa of Bidens were studied at an experimental garden in Jiangsu province in China. The results from four treatments (open pollination, bagged capitulum, decapitated capitulum, and pollen supplement) indicated that,
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Effects of drought on weed emergence and growth vary with the seed burial depth and presence of a cover crop Weed Biol. Manag. (IF 0.892) Pub Date : 2018-02-02 Stéphane Cordeau, Sandra Wayman, Carole Reibel, Florence Strbik, Bruno Chauvel, Jean‐Philippe Guillemin
In conservation agriculture, weed seed germination could decrease with the presence of a cover crop, surface weed seed location and temporal drought in summer just after seed shedding. This study simultaneously examined the effects of a cover crop, burial depth (seed location) and hydric stress on weed emergence and early growth. It was hypothesized that drought would reduce weed emergence and the
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Chemical management of weeds in corn hybrids Weed Biol. Manag. (IF 0.892) Pub Date : 2018-01-30 Leandro Galon, Felipe A. De David, César T. Forte, Francisco W.R. Júnior, André L. Radunz, Renato Kujawinski, Lauri L. Radunz, Camile T. Castoldi, Gismael F. Perin, Altemir J. Mossi
Corn stands out among the cultivars because of its high importance in food, animal feed and raw materials for energy production. The quantity and quality of the harvested grain can be reduced, mainly due to inadequate weed management. Nowadays, weed control is accomplished with the use of herbicides as pre‐emergence and postemergence, applied alone or in a tank mix. This study aimed to evaluate the
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Plant species composition in an international trading port and residential areas of Kobe, Japan Weed Biol. Manag. (IF 0.892) Pub Date : 2018-01-22 Emi Kawamata, Yoshiko Shimono, Tohru Tominaga
Invasive alien plants have caused negative ecological and economic impacts and numerous studies have focused on determining which traits make these plants successful invaders. Although it is commonly believed that only a small proportion of introduced species can become invasive, it is unknown why many alien species fail to establish. In order to identify the alien species that are exhibiting a limited
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Shift of allelochemicals from Sorghum halepense in the soil and their effects on the soil's bacterial community Weed Biol. Manag. (IF 0.892) Pub Date : 2017-12-26 Hongjuan Huang, Huimin Wang, Jorge M. Vivanco, Shouhui Wei, Wenlong Wu, Chaoxian Zhang
Johnsongrass (Sorghum halepense [L.]Pers.), an exotic invasive weed in China, secretes the phenolic compounds, p‐hydroxybenzoic acid (p‐HBA) and p‐hydroxybenzaldehyde (p‐HBAL), as the dominant allelochemicals in the root exudates. To better understand how these two allelochemicals affect the soil microbial community in the rhizosphere of S. halepense, the fate of these compounds in the invaded soil
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Identification of a target‐site mutation conferring resistance to triazine herbicides in oriental mustard (Sisymbrium orientale L.) from Australia Weed Biol. Manag. (IF 0.892) Pub Date : 2017-10-17 Hue T. Dang, Jenna M. Malone, Peter Boutsalis, Gurjeet Gill, Christopher Preston
In southern Australia, oriental mustard (Sisymbrium orientale) has been controlled successfully by triazine herbicides for several decades. The screening of 40 populations that were collected from the southern grain belt of Australia during 2010 and 2013 for resistance to six different herbicides (glyphosate, diflufenican, imazamox, chlorsulfuron, atrazine and 2,4‐dichlorophenoxyacetic acid) identified
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Seed germination and seedling emergence of Iberian starthistle (Centaurea iberica) Weed Biol. Manag. (IF 0.892) Pub Date : 2017-09-03 Iraj Nosratti, Rabee Abbasi, Alireza Bagheri, Pardis Bromandan
Centaurea iberica has become a problematic weed in some regions of western Iran. Little published data are available in the literature regarding its seed germination and seedling emergence. Therefore, this study was conducted in order to evaluate the effects of different factors on C. iberica seed germination. The highest level of germination of C. iberica was achieved at fluctuating temperatures of
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New localities and awn morphology variation in Miscanthus ×ogiformis Weed Biol. Manag. (IF 0.892) Pub Date : 2017-07-13 Hiroshi Hayakawa, Aya Nishiwaki, Tomoko Nishida, Akihiro Konuma
Miscanthus ×ogiformis is a hybrid between Miscanthus sacchariflorus and Miscanthus sinensis and its several synonyms indicate the insufficient understanding of the morphological variation of its awn on the spikelet, which is a key characteristic for identifying Miscanthus species. In the present study, all the Miscanthus specimens in 19 herbaria were examined in order to find new localities for Miscanthus
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Biology and mechanisms of sulfonylurea resistance in Schoenoplectiella juncoides, a noxious sedge in the rice paddy fields of Japan Weed Biol. Manag. (IF 0.892) Pub Date : 2017-07-05 Yoshinao Sada, Akira Uchino
Schoenoplectiella juncoides is a noxious sedge weed in rice paddy fields that has evolved resistance to sulfonylurea (SU) herbicides. The molecular basis of resistance is amino acid substitutions at Pro197, Trp574 or Asp376 in the acetolactate synthase (ALS) enzyme, which is the target of SUs. Schoenoplectiella juncoides has two ALS genes and resistant plants have point mutations that cause amino acid
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Seasonal variations of carbohydrates in Pueraria lobata related to growth and phenology Weed Biol. Manag. (IF 0.892) Pub Date : 2017-06-06 MD H. Rashid, MD N. Uddin, Takashi Asaeda, Randall W. Robinson
The seasonal changes of non‐structural carbohydrates (NSCs), water‐soluble carbohydrates (WSCs) and starch concentrations were examined in Pueraria lobata throughout its life cycle in order to elucidate the potential points in the seasonal growth and phenological cycles for its improved control. The study was carried out at two different habitat zones with distinct soil conditions in the riparian zone
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Performance of the invasive Eupatorium catarium and Ageratum conyzoides in comparison with a common native plant under varying levels of light and moisture Weed Biol. Manag. (IF 0.892) Pub Date : 2017-06-05 Qiaoqiao Huang, Yide Shen, Xiaoxia Li, Zhiwei Fan, Shaoliang Li, Yan Liu
Invasive alien plants are often found to be more plastic than the natives, which enable the former to outperform the native plants under some, or in a wide range, of environmental conditions. In addition, their performance under non‐competitive conditions might not predict their performance under competitive conditions. The performance of the recent invader, Eupatorium catarium, was compared with that
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