scholarly journals Waterlogging effects upon the phenological phases of common bean cultivar BRSMG-Uai

2020 ◽  
Vol 44 ◽  
Author(s):  
Beatriz Gonçalves Pereira Costa ◽  
Bárbara Christina Silva Amâncio ◽  
Lissa Vasconcellos Vilas Boas ◽  
Ludmila da Silva Bastos ◽  
Debora Domiciano ◽  
...  

ABSTRACT Common bean (Phaseolus vulgaris L.) is an important source of protein and carbohydrates, besides being rich in several mineral nutrients. In a flooding situation, the low availability of oxygen may result in hypoxia or anoxia condition. Therefore, this study aimed to evaluate the responses of the common bean cultivar BRSMG-Uai subjected to hypoxia in different phenological phases, analyzing its responses in terms of growth, productivity, carbon and nitrogen metabolism. Thus, seeds of common beans were germinated and when the seedling reached growth stage V1, they were transferred to plastic boxes containing 40L of nutritive solution with steady aeration. Distinct series of plants were exposed to air-restriction on their roots for nine days, in three different phenological phases V3/V4, R6 and R7. Samples were collected for biochemical and growth analyses in a completely random design (n=6). The plants subjected to low availability of oxygen presented a reduction in bean number, displaying the greatest loss in productivity in V3/V4, conferring the highest sensitivity to hypoxia in this phase. On the other hand, there was an increase in sugar concentration in leaves, and it was also possible to observe an increase in hydrogen peroxide in leaves and roots, concomitant with a decrease in superoxide dismutase activity in all phenological phases. There was also an increase in ascorbate peroxidase activity in roots in R6, as well as in nitrate reductase activity. We conclude that the cultivar BRSMG-Uai presents sensitivity to low oxygen availability, and the phenological phaseV3/V4 is the most critical for it.

2021 ◽  
Vol 34 (4) ◽  
pp. 857-866
Author(s):  
JOSÉ GERALDO DA SILVA ◽  
ENDERSON PETRÔNIO DE BRITO FERREIRA ◽  
ADRIANO STEPHAN NASCENTE

ABSTRACT The use of filler liming in the sowing furrow can improve the chemical characteristics of the soil and, together with nitrogen fertilization, increase common bean yield. The objective of this study was to determine the effect of filler liming of the sowing furrow along with nitrogen topdressing fertilization on the yield of common bean, cultivar Pérola, irrigated by central pivot, in the Cerrado Region. The field experiments were conducted for three consecutive cropping years, in a randomized block design with four replications, in a 2x4 factorial scheme, consisting of two doses of nitrogen topdressing fertilization (zero and 60 kg ha-1 of N) and four doses of filler liming application in the sowing furrow (0, 200, 400 and 600 kg ha-1 of CaCO3). The plant density (PD), number of pods (NP), number of grains (NG), mass of 100 grains (M100) and, grain yield (GY) were evaluated. The use of 60 kg ha-1 of N provided greater M100 and GY. The increase of the filler liming doses in the sowing furrow led to a reduction of the NP. The filler liming dose of 200 kg ha-1 provided higher values of NG and M100, and when combined with the nitrogen topdressing fertilization, improved the GY of the common bean.


2020 ◽  
Vol 43 ◽  
pp. e44910
Author(s):  
João Ricardo Silva Marcon ◽  
Maria Celeste Gonçalves Vidigal ◽  
Jean Fausto Carvalho Paulino ◽  
Pedro Soares Vidigal Filho ◽  
Marcela Coêlho

Anthracnose, which is caused by the fungus Colletotrichum lindemuthianum, is one of the most widespread and important diseases of the common bean (Phaseolus vulgaris L.) in the world. The objective of the present study was to characterize the genetic resistance of the Beija Flor cultivar by inheritance and to conduct allelism tests. The inheritance test was conducted in the F2 population derived from the Beija Flor (resistant) x TU (susceptible) cross inoculated with race 2047 of C. lindemuthianum. Furthermore, allelism tests exhibited a fitted segregation ratio of 15R:1S, thereby indicating the independence of the Beija Flor gene from the following previously characterized genes: Co-1, Co-2, Co-4, Co-42, Co-6, Co-12, Co-14, Co-15, and Co-Pe. Based on the aforementioned results, we are proposing the symbol Co-Bf to designate the new anthracnose resistance gene in the Brazilian Andean common bean cultivar Beija Flor. This cultivar is an important source of resistance to C. lindemuthianum that should provide a valuable contribution to the common bean breeding program for anthracnose resistance.


2011 ◽  
Vol 60 (5) ◽  
pp. 839-845 ◽  
Author(s):  
T. L. P. O. de Souza ◽  
S. N. Dessaune ◽  
D. A. Sanglard ◽  
M. A. Moreira ◽  
E. G. de Barros

2010 ◽  
Vol 122 (5) ◽  
pp. 893-903 ◽  
Author(s):  
Maria Celeste Gonçalves-Vidigal ◽  
Anelise S. Cruz ◽  
Alexandre Garcia ◽  
J. Kami ◽  
Pedro S. Vidigal Filho ◽  
...  

Euphytica ◽  
2006 ◽  
Vol 151 (3) ◽  
pp. 411-419 ◽  
Author(s):  
M. Celeste Gonçalves-Vidigal ◽  
James D. Kelly

Científica ◽  
2016 ◽  
Vol 44 (3) ◽  
pp. 446
Author(s):  
Pedro Marques da Silveira ◽  
Marcos Antônio Machado Mesquita ◽  
Augusto Cesar De Oliveira Gonzaga ◽  
Tatiely Gomes Bernardes ◽  
Paulo Cesar Ribeiro da Cunha

Author(s):  
Alinne da Silva ◽  
◽  
Vinícius I. Franzini ◽  
Cristiano D. Piccolla ◽  
Takashi Muraoka ◽  
...  

ABSTRACT The common bean has been considered to have low biological nitrogen fixation capacity; however, this process can be made more effective with molybdenum (Mo) supplementation. The objective of this study was to evaluate the influence of Mo rates on the growth and biological nitrogen fixation by two Brazilian common bean cultivars using the 15N isotope dilution technique. The experiment was performed in 2014 in a completely randomized design arranged in a 5 x 3 factorial scheme, corresponding to 5 rates of Mo (control, 40, 80, 120 and 240 g ha-1), the common bean cultivars Aporé, Ouro Negro and NORH-54 (a non-nodulating common bean cultivar), and three replicates. The application of Mo and the inoculation with rhizobia strains contributed to improving nitrogen fixation and grain weight. The cultivar Ouro Negro showed a higher number and weight of nodules and a higher amount of nitrogen derived from the atmosphere than the cultivar Aporé. The biological nitrogen fixation of Aporé was more dependent on the application of Mo. These results indicated that inoculation with Rhizobium strains and Mo supply effectively contributed to biological nitrogen fixation and improving grain production.


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