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| Registros recuperados: 14 | |
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| Gardner, Justin G.; Eastwood, David B.; Brooker, John R.; Klingeman, William E.. |
| This article summarizes a study of consumers' willingness to pay (WTP), in urban areas in Tennessee, Mississippi, and Michigan, for a powdery mildew resistant dogwood tree. Powdery mildew is a disease affecting flowering dogwoods that can limit growth, detract from the appearance, and may cause plant decline and death. Study objectives were to provide information about consumers' WTP and to identify potential marketing strategies for the introduction of the disease-resistant tree. On average, survey respondents indicated they are willing to pay a $13.35 premium for a flowering dogwood tree which is resistant to powdery mildew. Regression results led to inferences that the presence of dogwoods in a respondent's yard, presence of dogwoods infected with... |
| Tipo: Journal Article |
Palavras-chave: Contingent valuation; Disease resistance; Dogwood; Marketing; Maximum likelihood; Nursery; Powdery mildew; Crop Production/Industries; Marketing. |
| Ano: 2003 |
URL: http://purl.umn.edu/14676 |
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| Chávez Solis, Aarón Leobardo. |
| El estudio se realizó la región de Ceballos del municipio de Mapimí, Durango. Donde se evaluó la efectividad del extracto de gobernadora (Larrea tridentata (D.C.) coville (L.)). en el control de cenicilla en la producción de melón. El cultivo se estableció en una parcela de 2,500 m2 en un diseño de bloques en arreglo de parcelas sub sub divididas, donde las parcelas grandes fueron las variedades de melón (Crusier y Navigator), las parcelas medianas fueron las formulaciones del extracto de gobernadora (agua, hidroalcohólico 50% agua y 50% alcohol y, etanolico 96%) y las parcelas chicas correspondieron a las dosis (0, 1000, 5000 y 10000 mg de planta por litro de agua). Se evaluó la severidad de infección de cenicilla Podosphaera xanthii mediante una escala... |
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Palavras-chave: Cenicilla; Melón; Extracto de gobernadora; Larrea tridentata; Powdery mildew; Melon; Creosote bush extract; Fitopatología; Maestría. |
| Ano: 2012 |
URL: http://hdl.handle.net/10521/1703 |
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| Liu,Li-Ping; Qu,Jin-Wang; Yi,Xiao-Qu; Huang,Huan-Huan. |
| ABSTRACT Mildew resistance Locus O (MLO), a gene family specific to plants, plays significant roles in the resistance to powdery mildew (PM) and response to a variety of abiotic stresses, plant growth and development. Despite their importance as barley, rice, wheat, few studies are reported in dicots except Arabidopsis; no global analysis has been performed in the burgeoning model fruit plant sweet orange (Citrus sinensis). The recent release of the genome sequences of C. sinensis provides an opportunity to conduct a comprehensive overview the evolution and features of the MLO gene family in sweet orange. In this study, amount to 14 members of the Citrus sinensis MLO gene (CisMLO) family according to their gene structures, conserved motifs, and similitude... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Citrus sinensis; MLO gene family; Powdery mildew; Abiotic stress. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132017000100426 |
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| Emara,Hassan Mahmoud; Omar,Ayman Feisal; El-Shamy,Moustafa Mahmoud; Mohamed,Mona Elsaid. |
| ABSTRACT Powdery mildew of wheat (Triticum spp.) caused by Blumeria graminis f.sp. tritici (DC) E.O. Speer Em. Marchal is one of the most important bread wheat diseases in Egypt. All the Egyptian common bread wheat cultivars are susceptible to that disease at seedling and adult stages. Breeding of resistant cultivars is the most economical and environmentally safe method to eliminate the disease and reduce crop losses. Combinations of two or more effective resistance genes may lead to better, more durable resistance to that disease. Eight Pm genes i.e. Pm2, Pm6, Pm12, Pm16, Pm24, Pm35, Pm36 and Pm37 out of 21 powdery mildew monogenic wheat lines (Pm) were resistant to 42 individual isolates of powdery mildew collected from different governorates in the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Powdery mildew; Genetic control; DNA; Molecular markers. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542016000300279 |
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| Blat,Sally Ferreira; Costa,Cyro Paulino da; Vencovsky,Roland; Sala,Fernando Cesar. |
| The use of fungicides to control powdery mildew in sweet pepper has been ineffective and genetic resistance is the best alternative. Resistance sources identified in Capsicum annuum L. are rare and unsatisfactory. The purpose of this work was to study the inheritance of C. annuum reaction to powdery mildew. Three homozygous powdery mildew resistant parents, HV-12, Chilli and #124 and three susceptible lines, 609, 442 and 428 were used to obtain seven F1's and respectively their generations F2: HV-12 x 609, 442 × HV-12, 428 × HV-12, Chilli × 609, #124 × 609, Chilli × HV-12 and #124 × HV-12. The powdery epidemic was natural using inoculum from highly sporulating susceptible pepper host. Powdery mildew host reaction evaluations were carried out during the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Sweet pepper; Powdery mildew; Genetic resistance; Gene action; Allelism. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162005000100008 |
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| Reis,Ailton; Boiteux,Leonardo S.; Paz-Lima,Milton L.; Silva,Patrícia P.; Lopes,Carlos A.. |
| A powdery mildew disease was observed on leaves of Solanum gilo, S. melongena, S. tuberosum S. chacoense, Nicotiana rustica and N. tabacum in Brasília (Federal District), Brazil. Symptoms were mainly characterized by adaxial yellow areas in the leaves corresponding to white fungal colonies on the abaxial surface. Profuse sporulation was often observed. Light microscopy of the fungal colonies revealed the presence of conidiophores emerging through stomata with some having two or three branches. Ellipsoidal, subhyaline conidia were predominantly born singly and terminally on the conidiophore. All morphometrical characteristics agreed with those of Oidiopsis haplophylli (Syn. O. sicula). The teleomorph (Leveillula taurica) was not observed. Inoculation tests... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Etiology; Solanum gilo; S. melongena; S. tuberosum; S. chacoense; Nicotiana tabacum; N. rustica; Powdery mildew; Leveillula taurica. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-41582005000200017 |
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| MARTINS, M. V. V.; LIMA, J. S.; VIDAL NETO, F. das C.; MELO, D. S.; SERRANO, L. A. L.. |
| As doenças do cajueiro são um dos principais problemas enfrentados pela cajucultura brasileira. As estratégias de manejo devem ser utilizadas de forma integradas para reduzir os danos à produção. A resistência genética torna-se uma das mais eficientes estratégias de manejo de doenças. Assim o objetivo do trabalho foi avaliar a reação dos clones de cajueiro-anão em fase de pré-lançamento à ao oídio, à antracnose e ao mofo-preto. Foi avaliada durante seis anos a ocorrência do oídio, da antracnose e do mofo-preto nos clones de cajueiro-anão, pertencentes ao Programa de Melhoramento Genético da Embrapa, cultivados no Campo Experimental de Pacajus, CE. |
| Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) |
Palavras-chave: Mofo-preto; Anthracnose disease; Cashew black mould; Anacardium Occidentale; Oídio; Antracnose; Powdery mildew. |
| Ano: 2021 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1134427 |
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| Sales Júnior,Rui; Nunes,Glauber HS; Michereff,Sami J; Pereira,Elaíne WL; Guimarães,Izabel M. |
| Powdery mildew, caused by Podosphaera xanthii, is an important disease of melon in the Brazilian Northeast. The objective of this work was to evaluate the reaction of families, lines and cultivars of melon to P. xanthii. Two experiments in simple lattice were carried out under field conditions in the municipalities of Mossoró and Baraúna to evaluate 144 families. In a greenhouse, an experiment was carried out in a completely randomized design to evaluate 19 lines and the cultivars Yellow Queen, Chilton and Hy Mark. Disease was assessed by a severity scale. There was genetic variability among families. The families 4, 5, 11, 14, 18, 23, 33, 42, 101, 112 and 140 were identified in both sites as resistant. The lines LOF-027, LOF-105, LPS-124, MEL-008 and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cucumis melo; Podosphaera xanthii; Powdery mildew; Resistance; Selection. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362011000300021 |
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| Sepúlveda-Chavera,Germán; Salvatierra-Martínez,Ricardo; Andía-Guardia,Rodrigo. |
| The powdery mildew complex (Leveillula taurica and Erysiphe sp.) is one of the major factors limiting tomato (Solanum lycopersicum) production in the Azapa Valley, Chile. This problem is especially severe in the case of protected crops because the options for the treatment of these crops with chemical fungicides are limited. This study evaluated the effects of 0.5 and 1.0 kg100 L-1 Ospo-V55® and 10% raw cow's milk on tomato leaflets infected by powdery mildew complex. Ospo-V55®, with active ingredients consisting of 10% p/p of algae extract (IB-101) and 0.8% of microorganism concentrate, was evaluated in this study. Ospo-V55® contains flavonoids, alkaloids and phenols, oligo- and polysaccharides, 8.6% protein, 0.5% magnesium and trace amounts of... |
| Tipo: Journal article |
Palavras-chave: Alternative product; Conidial germination; Ospo-V55®; Powdery mildew; Raw cow's milk; Severity; Tomato; Valle de Azapa. |
| Ano: 2013 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202013000100010 |
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| Registros recuperados: 14 | |
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