Phytoprotection最新文献_第3页

Evaluation of phytosanitary products for the management of raspberry late leaf rust [Pucciniastrum americanum (Farl.) Arthur] 覆盆子晚叶锈病植物检疫产品评价[j]。亚瑟]

4区农林科学

Phytoprotection Pub Date : 2020-01-01 DOI: 10.7202/1072868ar

M. Delisle‐Houde, F. Demers, R. Tweddell

引用次数: 1

Humic acid may retard damages of cells in strawberry apices in high saline environment 腐植酸对高盐环境下草莓尖部细胞的损伤有延缓作用

4区农林科学

Phytoprotection Pub Date : 2020-01-01 DOI: 10.7202/1072869ar

Yong-Hong Lin, Yao-Tsung Chang

引用次数: 0

Évaluation de l’activité antibactérienne contre Xanthomonas campestris pv. vitians et Pseudomonas cichorii de différents extraits végétaux à base d’espèces horticoles et d’essences forestières 对油菜黄单胞菌的抑菌活性评价。以园艺和森林树种为基础的各种植物提取物中的葡萄和假单胞菌

4区农林科学

Phytoprotection Pub Date : 2019-01-01 DOI: 10.7202/1062449AR

Maxime Delisle-Houde, V. Toussaint, Russell J. Tweddell

{"title":"Évaluation de l’activité antibactérienne contre Xanthomonas campestris pv. vitians et Pseudomonas cichorii de différents extraits végétaux à base d’espèces horticoles et d’essences forestières","authors":"Maxime Delisle-Houde, V. Toussaint, Russell J. Tweddell","doi":"10.7202/1062449AR","DOIUrl":"https://doi.org/10.7202/1062449AR","url":null,"abstract":"Differents extraits hydro-ethanoliques a base de residus d’especes horticoles et d’essences forestieres ont ete testes in vitro pour leur activite antibacterienne envers Xanthomonas campestris pv. vitians et Pseudomonas cichorii, respectivement responsables de la tache bacterienne et de la maladie des taches et des nervures noires de la laitue. Des 17 extraits d’especes horticoles, 13 extraits affichent une concentration minimale letale (CML) ≥ 50 mg ml-1 envers X. campestris pv. vitians et P. cichorii. En contrepartie, trois des 20 extraits a base d’especes forestieres affichent une CML ≥ 50 mg ml-1 envers les deux bacteries. De faibles CMLs (≤ 6,25 mg ml-1) envers les deux bacteries ont ete obtenues avec l’extrait #3 a base de fruits de canneberge et les extraits de fruits d’aulne rugueux, d’ecorce de chene rouge, d’ecorce d’erable rouge et de rameaux de sapin baumier. Les resultats obtenus montrent que l’activite antibacterienne varie selon l’espece et la structure utilisees dans la preparation de l’extrait; les extraits d’essences forestieres presentant une plus forte activite antibacterienne. L’activite antibacterienne peut egalement varier selon le lot considere d’un meme extrait. Les extraits presentant une forte activite antibacterienne (CML ≤ 6,25 mg ml-1) seront testes au cours de travaux futurs afin d’evaluer leur efficacite a limiter le developpement des populations de X. campestris pv. vitians et P. cichorii sur les plants de laitue et a reprimer le developpement de la tache bacterienne et de la maladie des taches et des nervures noires.","PeriodicalId":49693,"journal":{"name":"Phytoprotection","volume":"220 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73138397","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: 0

Pathogenicity of Pratylenchus penetrans to dwarfing apple rootstocks 扁叶螨对苹果矮化砧木的渗透致病性

4区农林科学

Phytoprotection Pub Date : 2019-01-01 DOI: 10.7202/1059304AR

G. Bélair, N. Dauphinais, Y. Fournier

{"title":"Pathogenicity of Pratylenchus penetrans to dwarfing apple rootstocks","authors":"G. Bélair, N. Dauphinais, Y. Fournier","doi":"10.7202/1059304AR","DOIUrl":"https://doi.org/10.7202/1059304AR","url":null,"abstract":"The objective of this research was to measure the effect of P. penetrans densities on the vegetative growth of three apple dwarfing rootstocks Bud 9, M.9 and M.26 under field microplot conditions. Under 500 nematodes kg-1 soil density, the shoot dry weights of Bud 9, M.9 and M.26 rootstocks were significantly reduced by 30%, 23% and 14% respectively. Under the 1 500 nematodes kg-1 soil density, the dry shoot weight of Bud 9 and M.9 were not significantly different from the 500 nematodes kg-1 soil density except M.26 which exhibited a 29% decrease. The root dry weights of rootstocks were not significantly reduced when exposed to these P. penetrans densities except M.26 which was reduced 26% relative to non-inoculated trees under the 1 500 nematodes kg-1 soil density. These results confirm the pathogenic effect of P. penetrans on dwarfing apple rootstocks. Although preliminary, these results suggest some tolerance of M.26 to P. penetrans under lower density when compared to M.9 and Bud 9. Under higher nematode densities, both Bud 9 and M.9 exhibited a tolerance of their root system in comparison to M.26. Our results also emphasize the need to further assess the susceptibility/tolerance of dwarfing apple rootstocks to various densities of P. penetrans.","PeriodicalId":49693,"journal":{"name":"Phytoprotection","volume":"13 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82508780","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: 0

Ophiostoma ulmi DNA naturally introgressed into an isolate of Ophiostoma novo-ulmi is clustered around pathogenicity and mating type loci 自然渗入到新乌尔米蛇口的DNA聚集在致病性和交配型位点周围

4区农林科学

Phytoprotection Pub Date : 2019-01-01 DOI: 10.7202/1059303AR

Abdelali Et-Touil, M. Dusabenyagasani, G. Bouvet, C. Brasier, L. Bernier

引用次数: 7

Virus et vigne, un mariage difficile à défaire : la biovigilance est nécessaire plus que jamais 病毒和葡萄，一个难以打破的联姻:生物警戒比以往任何时候都更有必要

4区农林科学

Phytoprotection Pub Date : 2019-01-01 DOI: 10.7202/1059305AR

Issam E. Ben Moussa, Pierre Lemoyne, M. Fall

{"title":"Virus et vigne, un mariage difficile à défaire : la biovigilance est nécessaire plus que jamais","authors":"Issam E. Ben Moussa, Pierre Lemoyne, M. Fall","doi":"10.7202/1059305AR","DOIUrl":"https://doi.org/10.7202/1059305AR","url":null,"abstract":"La viticulture est l’une des industries les plus largement etablies dans le monde. Au Canada, apres l’Ontario et la Colombie-Britannique, c’est au tour du Quebec de connaitre une intensification de la viticulture. Or, plusieurs contraintes sont et seront associees a cette intensification. La vigne est une plante vivace caracterisee par une croissance indefinie impliquant une disponibilite continue de tissus tendres et eventuellement une susceptibilite aux insectes et maladies. Depuis ses origines, la vigne a evolue en constante dualite avec les virus. Plus de 60 virus sont actuellement associes a la vigne a l’echelle mondiale, dont la majorite des virus sont pathogenes, pouvant reduire la vigueur et la productivite des vignes ou la qualite des raisins. Au Quebec, la derniere enquete qui fait etat des virus dans les vignobles date des annees 1990. Cette enquete a revele la presence de deux virus pathogenes de la vigne alors que l’ensemble des virus presents dans les vignobles du Quebec restent toujours a definir. Ce manquement de connaissance est sans doute l’un des facteurs qui expliquent l’inefficacite des strategies de lutte contre les viroses de la vigne. Ces strategies reposent essentiellement sur la prevention et sur des programmes de certification du materiel viticole en ciblant des virus connus et detectables. Dans cet article, nous evoquons les lacunes associees a l’etat des virus de la vigne au Quebec et nous expliquons comment un programme de biovigilance peut aider a mitiger les menaces et assurer une lutte efficace contre les viroses de la vigne.","PeriodicalId":49693,"journal":{"name":"Phytoprotection","volume":"174 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78452775","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

Effects of exogenous application of salicylic acid on drought performance of medicinal plant, Fritillaria przewalskii Maxim 外源施用水杨酸对药用植物贝母抗旱性能的影响

4区农林科学

Phytoprotection Pub Date : 2019-01-01 DOI: 10.7202/1066455ar

Ruili Ma, Shengrong Xu, Yuan Chen, F. Guo, rui Wu, S. Okyere, Fusheng Wang, Y. Jing, Wang Xingzheng

{"title":"Effects of exogenous application of salicylic acid on drought performance of medicinal plant, Fritillaria przewalskii Maxim","authors":"Ruili Ma, Shengrong Xu, Yuan Chen, F. Guo, rui Wu, S. Okyere, Fusheng Wang, Y. Jing, Wang Xingzheng","doi":"10.7202/1066455ar","DOIUrl":"https://doi.org/10.7202/1066455ar","url":null,"abstract":"This study investigated the effects of salicylic acid (SA) foliar application on Fritillariaprzewalskii under drought stress condition. Plants were subjected to three irrigation regimes, 75-80% control (CK), 60-65% medium stress (M) and 40-45% severe stress (S) of the field capacity and three levels of SA, 0.0, 0.5 and 1.0 mM. Relative water content (RWC), proline content, total soluble carbohydrates, chlorophyll “a” (Chl a), chlorophyll “b” (Chl b), chlorophyll “a + b” (Chl a + b), carotenoids contents, malondialdehyde (MDA) contents and activities of several antioxidant enzymes such as superoxide dismutase (SOD), peroxidase (POD), catalase (CAT), glutathione reductase (GR) and ascorbate peroxidase (APX) activity were measured. RWC, soluble carbohydrates, Chl b, Chl a + b, MDA content and activities of antioxidant enzymes (SOD, POD, CAT, GR and APX) were significantly affected by water deprivation without SA. Exogenous SA significantly increased the content of RWC, total leaf soluble carbohydrates, leaf proline and Chl b at moderate water deficit and severe water deficit. MDA content was decreased significantly by exogenous SA. The activities of antioxidant enzymes (SOD, POD, CAT, GR and APX) were also significantly affected by exogenous SA. However, the content of Chl a, Chl a + b, and carotenoids were not significantly affected by exogenous SA.","PeriodicalId":49693,"journal":{"name":"Phytoprotection","volume":"16 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85377367","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

Survey of imazethapyr-resistant common ragweed (Ambrosia artemisiifolia L.) in Quebec 魁北克普通豚草(Ambrosia artemisiifolia L.)抗吡虫胺调查

4区农林科学

Phytoprotection Pub Date : 2019-01-01 DOI: 10.7202/1066456ar

Félix Marsan-Pelletier, A. Vanasse, Marie-Josée Simard, M. Cuerrier

{"title":"Survey of imazethapyr-resistant common ragweed (Ambrosia artemisiifolia L.) in Quebec","authors":"Félix Marsan-Pelletier, A. Vanasse, Marie-Josée Simard, M. Cuerrier","doi":"10.7202/1066456ar","DOIUrl":"https://doi.org/10.7202/1066456ar","url":null,"abstract":"Common ragweed (Ambrosia artemisiifolia L.) is widespread in soybean (Glycine max L.) fields in southern Quebec. Biotypes resistant to ALS (group 2) herbicides are commonly reported in conventional crops where these herbicides are used. Reported cases are voluntary and potentially underestimate the occurrence of resistance. A survey was therefore undertaken in 2014 and 2015 in soybean fields treated with a Group 2 herbicide. Common ragweed seeds were collected from 123 fields. Seedlings were grown and tested for resistance using the recommended rate of imazethapyr (100.8 g a.e. ha-1). Weed populations were classified as susceptible, developing resistance (less than one third of plants classified as resistant) or resistant (at least one third of plants were resistant). Twenty populations were then selected based on these resistance levels and treated with four doses of the herbicide (0, 100.8, 201.6, and 403.2 g a.e. ha-1). Resistance to imazethapyr was detected in 81% of samples (21.1% were classified as developing resistance and 59.4% were classified as resistant). Populations classified as developing resistance had a resistance factor of 1.04, while populations classified as resistant had a resistance factor greater than 5. These results confirm the presence of multiple populations of imazethapyr-resistant common ragweed in Quebec.","PeriodicalId":49693,"journal":{"name":"Phytoprotection","volume":"70 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76096433","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

Management of Pratylenchus penetrans and Verticilllium symptoms in strawberry 草莓穿透型叶盘虫和黄斑病症状的防治

4区农林科学

Phytoprotection Pub Date : 2018-05-31 DOI: 10.7202/1046783AR

G. Bélair, J. Coulombe, N. Dauphinais

{"title":"Management of Pratylenchus penetrans and Verticilllium symptoms in strawberry","authors":"G. Bélair, J. Coulombe, N. Dauphinais","doi":"10.7202/1046783AR","DOIUrl":"https://doi.org/10.7202/1046783AR","url":null,"abstract":"Under field conditions, the effect of a single rotation with corn, cruciferous crops (canola followed by white mustard) as green manure, oats, and forage pearl millet was measured on the density of Pratylenchus penetrans and its impact on damage and losses caused by Verticillium dahliae in a strawberry plantation the following year. The lowest density of P. penetrans was recorded following forage pearl millet and green cruciferous manure, and in both cases, it was below the known pest threshold in strawberry of 500 P. penetrans kg-1 soil. Both green manure of cruciferous plants and forage pearl millet reduced the incidence of Verticillium wilt and increased the growth of strawberry plants. In the fall, the number of crowns and the number of daughter plants were significantly higher following forage pearl millet or cruciferous plants than corn. The highest wilt symptoms and the lowest strawberry growth were observed in plots previously planted with corn, which also harboured the highest spring populations of P. penetrans. Those results support a positive interaction between P. penetrans and V. dahliae, even more importantly so on susceptible cultivard such as ‘Jewell’.","PeriodicalId":49693,"journal":{"name":"Phytoprotection","volume":"28 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87946384","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

Antagonistic potential of native agrocin-producing non-pathogenic Agrobacterium tumefaciens strain UHFBA-218 to control crown gall in peach 产农蛋白非致病性农杆菌UHFBA-218对桃树冠瘿病的拮抗作用

4区农林科学

Phytoprotection Pub Date : 2017-07-13 DOI: 10.7202/1040509AR

Aditi Sharma, A. Gupta, K. Khosla, R. Mahajan, P. K. Mahajan

{"title":"Antagonistic potential of native agrocin-producing non-pathogenic Agrobacterium tumefaciens strain UHFBA-218 to control crown gall in peach","authors":"Aditi Sharma, A. Gupta, K. Khosla, R. Mahajan, P. K. Mahajan","doi":"10.7202/1040509AR","DOIUrl":"https://doi.org/10.7202/1040509AR","url":null,"abstract":"A non-pathogenic agrocin-producing native isolate of Agrobacterium tumefaciens strain UHFBA-218 was tested as a biological control agent against the peach crown gall. This strain was compatible with all the recommended pesticides used in stone fruits in the integrated pest management (IPM) module, except for copper oxychloride, which was detrimental to its growth. Upon artificial co-inoculation of 4-wk-old plants of tomato var. Solan Gola with A. tumefaciens strain UHFBA-218 and tumorigenic A. tumefaciens strain Peach 2E-10, out of the 27 isolates recovered, six were transconjugants showing selective acquisition of tumorigenic factors as made evident by amplification with ipt and virD2 primers, whereas the rest of the isolates did not acquire any of these tumorigenic factors. A white stone powder-based formulation of this isolate (103.3 × 108 cfu g-1) retained appreciable viability for up to 6 months at room temperature. When peach roots and seeds were soaked in cell suspensions of different doses of a white stone powder-based bioformulation of UHFBA-218 before planting in the field, the number of plants with tumours was reduced, with the lowest incidence of crown gall being observed in the 0.1% UHFBA-218 root dip treatment, i.e. 1.48% and 0.80% during the years 2013 and 2014, respectively. No incidence of crown gall was observed in the three seed dip treatments, i.e. 30-min dip in UHFBA-218 followed by 1 h of shade drying, stratified seeds dipped for 30 min in 0.1% suspensions of strains UHFBA-218 or K84 followed by 1 h of shade drying before sowing, as compared with 14.76% incidence in untreated plants.","PeriodicalId":49693,"journal":{"name":"Phytoprotection","volume":"11 1","pages":"1-11"},"PeriodicalIF":0.0,"publicationDate":"2017-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72641051","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: 5