scholarly journals PHYSIOLOGICAL PERFORMANCE OF COMMON BEANS SUBMITTED TO DEFICIT IRRIGATION AND BIOSTIMULANTS

Irriga ◽  
2021 ◽  
Vol 1 (3) ◽  
pp. 468-488
Author(s):  
ICARO MONTEIRO ◽  
OSVALDIR FELICIANO DOS SANTOS ◽  
MARA LÚCIA CRUZ DE SOUZA ◽  
DARIANE PRISCILA FRANCO DE OLIVEIRA ◽  
TAMIRIS CRISTINA OLIVEIRA DE ANDRADE ◽  
...  
Keyword(s):  
Common Bean ◽  
Water Deficit ◽  
Bacillus Amyloliquefaciens ◽  
Specific Activity ◽  
Gas Exchanges ◽  
Biochemical Alterations ◽  
Crop Development ◽  
Enzyme Superoxide Dismutase ◽  
The Common ◽  
Physiological And Biochemical

The common bean is a sensitive plant to the effects of water deficit and physio-biochemical alterations which influence the yield are observed. Vegetal biostimulants are inputs which present potential to mitigate the effects of water deficit on crop development. This paper aimed to evaluate the physiological and biochemical impact of water deficit on common bean and the potential of applying biostimulants as a mechanism to tolerate the stress. The assay was conducted in an agricultural greenhouse in Botucatu-Brazil, the pots were disposed in a split-plot design in randomized blocks, with four replications. The treatments in the plots corresponded to the water content tension, control (-10 kPa) and water deficit (-40 kPa), in the subplots the biostimulants treatments (B1- control; B2- Bacillus amyloliquefaciens BV; B3- Bacillus amyloliquefaciens BV 03 + algae extract Ascophyllum nodosum). The analyzed variables were: leaf pigments, gas exchanges, total soluble proteins, L-proline, specific activity of the enzyme superoxide dismutase, shoot dry matter and crop yield. The water deficit affected negatively all parameters evaluated and the biostimulants in the tested form, did not show efficiency in helping the plants to tolerate stress due to drought. We suggest new studies to prove the efficiency of biostimulants for field applications.

scholarly journals Asymmetrical leaves induced by water deficit show asymmetric photosynthesis in common bean

2005 ◽  
Vol 17 (2) ◽  
pp. 223-227 ◽  
Author(s):  
Gustavo Maia Souza ◽  
Juliana de Oliveira Fernandes Viana ◽  
Ricardo Ferraz de Oliveira
Keyword(s):  
Common Bean ◽  
Water Deficit ◽  
Net Photosynthesis ◽  
Developmental Instability ◽  
Gas Exchanges ◽  
Symmetric Plane ◽  
Bean Genotype ◽  
Common Bean Genotype ◽  
Asymmetric Growth ◽  
Effects Of Drought

In this study we tested the hypothesis that leaf asymmetric growth induced by water deficit in common bean (Phaseolus vulgaris L.) might be correlated with different net photosynthesis rates between the two opposed leaflets (right and left) considering a bilateral symmetric plane. In order to induce developmental instability, the drought-sensitive common bean genotype "Jalo Precoce" was subjected to periods of suspended irrigation during its vegetative growth. Developmental instability was evaluated by measurements of leaflets asymmetry, and the effects of drought on gas exchanges were taken in both symmetrical leaflets (right and left) in relation to the central leaflet. Water deficit induced an increase of 80 % in leaf asymmetry. Net photosynthesis of P. vulgaris was affected by water deficit in two ways, reducing its physiological yield and increasing its variability between leaflets. Thus, as we hypothesized, the increase in developmental instability, measured by leaf symmetry deviations, was supported by a variable net photosynthesis distribution in the leaves induced by drought.

scholarly journals Induction of water deficit tolerance by cold shock and salicylic acid during germination in the common bean

2013 ◽  
Vol 35 (2) ◽  
Author(s):  
Edna Antônia Torquato Agostini ◽  
Nelson Barbosa Machado-Neto ◽  
Ceci Castilho Custódio
Keyword(s):  
Salicylic Acid ◽  
Common Bean ◽  
Water Deficit ◽  
Cold Shock ◽  
The Common

scholarly journals Growth of the common bean submitted at different levels of water deficit in the soil

2018 ◽  
Vol 93 (1) ◽  
pp. 93
Author(s):  
Camila Aparecida Da Silva Martins ◽  
Edvaldo Fialho dos Reis ◽  
Giovanni De Oliveira Garcia
Keyword(s):  
Common Bean ◽  
Water Deficit ◽  
Dry Matter ◽  
Clayey Soil ◽  
Field Capacity ◽  
Quantitative Factor ◽  
The Common ◽  
Four Levels ◽  
Different Levels

The objective of this study was to evaluate the effect of water deficit on thegrowth of common bean cultivated in medium and clayey soil. Two experiments were developed in factorial scheme of 2 x 4 with tension for the determination of field capacity on two levels and soil water deficit on four levels in a completelyrandomized design with three replicates for each soil. Growth analyzes were performed in two phenological stage of crop and the data were submitted to an analysis of variance (p ≤ 0.05). When significant, the F Test (p ≤ 0.05) was used for the qualitative factor and regression analysis for the quantitative factor. The water content in the soil of 40 and 60% of available water exertednegative effects on leaf water potential, leaf area and total dry matter of thecommon bean, independent of voltage adopted in determining the field capacity.

scholarly journals Productivity and gas exchanges of the common bean subjected to inoculation and nitrogen fertilization

2021 ◽  
Vol 10 (4) ◽  
pp. e54910414399
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 ◽  
Nitrogen Fertilization ◽  
Management Practice ◽  
Crop Productivity ◽  
Gas Exchanges ◽  
The Third ◽  
Seed Inoculation ◽  
The Common ◽  
Leaf N Content ◽  
Leaf N

Beans are one of the main foods consumed in Brazil. It is considered an essential ingredient in the basic diet of Brazilians. As a management practice, aiming to supply N and increase crop productivity, producers have used the association of seed inoculation with nitrogen fertilization. Thus, the objective of this study is to evaluate the effects of split nitrogen fertilization and seed inoculation on common bean productivity. The experiment was carried out in completely randomized blocks and a 2x2x3 factorial design with four replications. The first factor was seed inoculation (presence or absence) with peat inoculant containing the strains SEMIA 4077 and SEMIA 4080 from R. tropici and the strain SEMIA 4088 from R. freirei. The second factor was the parceling of nitrogen cover fertilization (80+40 and 60+60 kg ha-1 of N at 20 and 40 days after emergence (DAE)). The third factor was time of assessment (50, 65 and 80 DAE). The inoculated bean showed a 5% higher leaf N content than non-inoculated ones. Transpiration and liquid photosynthesis rates were higher in inoculated plants and in those with 60+60 kg ha-1 of N. However, productivity was 13% higher in uninoculated beans regardless of nitrogen fertilization.

The Morphology of the Rat Kidney Following Folic Acid Administration

1970 ◽  
Vol 28 ◽  
pp. 200-201
Author(s):  
Aline Byrnes ◽  
Elsa E. Ramos ◽  
Minoru Suzuki ◽  
E.D. Mayfield
Keyword(s):  
Folic Acid ◽  
De Novo ◽  
Specific Activity ◽  
Rat Kidney ◽  
Present Report ◽  
Intracellular Localization ◽  
Male Rats ◽  
Renal Hypertrophy ◽  
Electron Microscopic ◽  
Biochemical Alterations

Renal hypertrophy was induced in 100 g male rats by the injection of 250 mg folic acid (FA) dissolved in 0.3 M NaHCO3/kg body weight (i.v.). Preliminary studies of the biochemical alterations in ribonucleic acid (RNA) metabolism of the renal tissue have been reported recently (1). They are: RNA content and concentration, orotic acid-c14 incorporation into RNA and acid soluble nucleotide pool, intracellular localization of the newly synthesized RNA, and the specific activity of enzymes of the de novo pyrimidine biosynthesis pathway. The present report describes the light and electron microscopic observations in these animals. For light microscopy, kidney slices were fixed in formalin, embedded, sectioned, and stained with H & E and PAS.

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

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.

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

2010 ◽  
Vol 28 (1) ◽  
pp. 57-71 ◽  
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

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

2010 ◽  
Vol 10 (4) ◽  
pp. 329-336 ◽  
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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