Effect of chemical and biological seed treatments on common bean seeds inoculated with Fusarium oxysporum f. sp. phaseoli

ABSTRACT: Currently, the common bean (Phaseolus vulgaris L.) productivity has been reduced by the fungus Fusarium oxysporum f. sp. phaseoli (Fop), the causative agent of Fusarium wilt. Considering the integrated management of diseases, the objectives of the present work were to verify the compatibility between chemical and biological fungicides for Fusarium oxysporum Schlecht. f. sp. phaseoli Kendrick & Snyder (Fop) control in common bean seeds. In laboratory, the effects of the treatments were evaluated by sanity, germination, seedling total length and seedling dry matter tests. In greenhouse conditions, the emergence speed rate, the percentage of emergence and the rate of pathogen transmission through the pathogen infestation in a substrate to plants were evaluated. Common bean seeds BRS Estilo were artificially inoculated with Fop isolate (IAC 11.299-1). In the seeds’ treatment, the chemical fungicides fludyoxonyl, flutriafol, methyl tiofanate, and biological products of Trichoderma sp. (isolates SF04, GF 422 and strain 1306), separately and mixed, were used. Treatments that promoted the best pathogen control in seeds were the combination of methyl tiophanate with biological products. Both flutriafol and GF 422 isolated and in mixed treatments affected the seeds’ physiological quality. The protective effect of the products was noted in the transmission test, whose Fop incidence was from 5 to 40% in the hypocotyl and from 5 to 30% in common bean roots.

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Effects of Foliar Silicon Application, Seed Inoculation and Splitting of N Fertilization on Yield, Physiological Quality, and Economic Viability of the Common Bean

Silicon ◽

10.1007/s12633-021-01208-y ◽

2021 ◽

Author(s):

Amanda Magalhães Bueno ◽

Rilner Alves Flores ◽

Enderson Petrônio de Brito Ferreira ◽

Aline Franciel de Andrade ◽

Frederico Raimundo Simões de Lima ◽

...

Keyword(s):

Common Bean ◽

N Fertilization ◽

Economic Viability ◽

Seed Inoculation ◽

Physiological Quality ◽

The Common

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Physiological Quality of Common Bean Seeds Subjected to Different Concentrations of Salicylic Acid

Journal of Agricultural Science ◽

10.5539/jas.v11n1p448 ◽

2018 ◽

Vol 11 (1) ◽

pp. 448 ◽

Cited By ~ 1

Author(s):

Tiéle Stuker Fernandes ◽

Ubirajara Russi Nunes ◽

Rodrigo Roso ◽

Eduardo José Ludwig ◽

Priscila Barbieri Zini ◽

...

Keyword(s):

Salicylic Acid ◽

Common Bean ◽

Germination Percentage ◽

Acid Solutions ◽

Seed Imbibition ◽

Physiological Processes ◽

Randomized Design ◽

Physiological Quality ◽

The Common

Salicylic acid acts on several plant physiological processes. Therefore, the aim of this study was to determine if salicylic acid interferes on the physiological quality of common bean seeds soaked with different concentrations by testing two seed imbibition methodologies. Common bean seeds of the cultivars Fepagro 26 and Predileto were utilized. The seeds were soaked in solutions of salicylic acid with concentrations of zero, 250, 500, 750, 1,000, 3,000 and 5,000 μM. Seed imbibition occurred in two ways: (1) germination paper moistened with salicylic acid solutions, and (2) seed imbibition in salicylic acid solutions in plastic boxes for 24 hours and subsequent sowing on germination paper moistened with distilled water. The experiment was maintained in a germination incubator under 25 °C temperature and with constant light. The number of normal seedlings (first count), length, fresh and dry matter of seedlings were determined on the fifth day after sowing. Germination percentage was assessed nine days after sowing. The study was performed in a completely randomized design with four replicates and 50 seeds were used for each treatment. Regression analysis was performed for salicylic acid concentrations, with no comparison of cultivars and seed imbibition methods. Salicylic acid in concentrations up to 1,000 μM does not negatively affect the common bean seed germination of the cultivars Fepagro 26 and Predileto, using seed soaking for 24 hours and imbibition in the germination paper. Concentrations of salicylic acid up to 1,000 μM and seed imbibition for 24 hours do not affect the vigor (first count) of the two common bean cultivars.

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Quality of Protein From the Common Bean

Case Medical Research ◽

10.31525/ct1-nct04118517 ◽

2019 ◽

Author(s):

Keyword(s):

Common Bean ◽

The Common

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Recommendations by Pacem in Maribus V to the U.N. Conference on the Law of the Sea

Environmental Conservation ◽

10.1017/s0376892900000552 ◽

1975 ◽

Vol 2 (1) ◽

pp. 14-16

Author(s):

Elisabeth Mann Borgese

Keyword(s):

Integrated Management ◽

Marine Ecosystem ◽

Law Of The Sea ◽

Global System ◽

Integrated Management System ◽

Sea Bed ◽

Present Generation ◽

National Jurisdiction ◽

Technological Developments ◽

The Common

Pacem in Maribus once again stressed that an ocean regime must encompass the oceans as a whole and be considered as a sub-system of the entire global system. Jurisdictional decisions, including those affecting the Exclusive Economic Zone (EEZ), must reflect that paramount concern. It is not a matter of geographical realignment or of partition; marine ecosystem do not correspond to political demarcations. Nor is mankind, for which the concept of the common heritage is prescribed, confined to coastal states or to the present generation.In its discussions and studies, Pacem in Maribus has consistently stressed the significance of rapid scientific and technological developments which have radically changed the nature of many conventional uses of the sea and call for management as the only alternative to conflict and possible disasters. In its commitment to an Ocean Space Authority rather than to an International Sea-bed Authority, Pacem in Maribus contends that activities on the sea-bed cannot be dissociated from activities in the water-column, at the surface, and at the atmospheric interface; that the sea-bed must become part of an integrated management system for ocean space; and that claims to national jurisdiction carry a surrogate responsibility in that management.Pacem in Maribus contends that any Law of the Sea which does not respect and embody these overriding considerations will prove to be ineffective if not inoperable.

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Genetic characterization at the species and symbiovar level of indigenous rhizobial isolates nodulating Phaseolus vulgaris in Greece

Scientific Reports ◽

10.1038/s41598-021-88051-8 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Evdoxia Efstathiadou ◽

Georgia Ntatsi ◽

Dimitrios Savvas ◽

Anastasia P. Tampakaki

Keyword(s):

Phaseolus Vulgaris ◽

Common Bean ◽

Phylogenetic Affiliation ◽

Rhizobial Inoculation ◽

Rhizobial Species ◽

The Common ◽

First Time ◽

Of Greece ◽

Rhizobial Isolates

AbstractPhaseolus vulgaris (L.), commonly known as bean or common bean, is considered a promiscuous legume host since it forms nodules with diverse rhizobial species and symbiovars. Most of the common bean nodulating rhizobia are mainly affiliated to the genus Rhizobium, though strains belonging to Ensifer, Pararhizobium, Mesorhizobium, Bradyrhizobium, and Burkholderia have also been reported. This is the first report on the characterization of bean-nodulating rhizobia at the species and symbiovar level in Greece. The goals of this research were to isolate and characterize rhizobia nodulating local common bean genotypes grown in five different edaphoclimatic regions of Greece with no rhizobial inoculation history. The genetic diversity of the rhizobial isolates was assessed by BOX-PCR and the phylogenetic affiliation was assessed by multilocus sequence analysis (MLSA) of housekeeping and symbiosis-related genes. A total of fifty fast-growing rhizobial strains were isolated and representative isolates with distinct BOX-PCR fingerpriniting patterns were subjected to phylogenetic analysis. The strains were closely related to R. anhuiense, R. azibense, R. hidalgonense, R. sophoriradicis, and to a putative new genospecies which is provisionally named as Rhizobium sp. I. Most strains belonged to symbiovar phaseoli carrying the α-, γ-a and γ-b alleles of nodC gene, while some of them belonged to symbiovar gallicum. To the best of our knowledge, it is the first time that strains assigned to R. sophoriradicis and harbored the γ-b allele were found in European soils. All strains were able to re-nodulate their original host, indicating that they are true microsymbionts of common bean.

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Inheritance and development of molecular markers linked to angular leaf spot resistance genes in the common bean accession G10909

Molecular Breeding ◽

10.1007/s11032-010-9461-x ◽

2010 ◽

Vol 28 (1) ◽

pp. 57-71 ◽

Cited By ~ 17

Author(s):

George S. Mahuku ◽

María Antonia Henríquez ◽

Carmenza Montoya ◽

Carlos Jara ◽

Henry Teran ◽

...

Keyword(s):

Molecular Markers ◽

Common Bean ◽

Resistance Genes ◽

Leaf Spot ◽

Angular Leaf Spot ◽

The Common

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Genetic gain in the breeding program of common beans at IAC from 1989 to 2007

Cropp Breeding and Applied Biotechnology ◽

10.1590/s1984-70332010000400007 ◽

2010 ◽

Vol 10 (4) ◽

pp. 329-336 ◽

Cited By ~ 16

Author(s):

Alisson Fernando Chiorato ◽

Sérgio Augusto Morais Carbonell ◽

Roland Vencovsky ◽

Nelson da Silva Fonseca Júnior ◽

José Baldin Pinheiro

Keyword(s):

Grain Yield ◽

Common Bean ◽

Genetic Gain ◽

Grain Quality ◽

The State ◽

Breeding Program ◽

Common Beans ◽

The Common ◽

The Mean ◽

Second Period

The goal of the present work was to evaluate the genetic gain obtained in grain yield for the common bean genotypes from 1989 until 2007, at the Instituto Agronômico de Campinas, in the state of São Paulo. Genetic gain has been separated into two research periods; the first, from 1989 to 1996, and the second, from 1997 to 2007. In the first period, a genetic gain of 1.07 % per year was obtained, whereas for the second period, the gain was zero. However, the mean yield of the evaluated lines was approximately 1000 kg ha-1 superior to the figures obtained in the first period. The main cause for the absence of genetic gain in the second period is that the focus of the breeding program was changed to grain quality. The individualized analysis of the genotypes with carioca grains in the second period indicated the lack of genetic gain during the investigated period.

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