Papers by Jose Antonio de Fatima Esteves
Acta Scientiarum. Animal Sciences, 2016
Anthracnose caused by the fungus Colletotrichum lindemuthianum is one of the main diseases affect... more Anthracnose caused by the fungus Colletotrichum lindemuthianum is one of the main diseases affecting the common bean (Phaseolus vulgaris L.), and the pathogen is characterized by wide variability, with more than 50 physiological races identified in Brazil. Greater occurrences of races 65, 73, and 81 have been observed in Brazil along with the occurrence of pathogenic variability among isolates of a single race, destabilizing the resistance of commercial cultivars. Therefore, the aim of this study was to identify physiological races of C. lindemuthianum isolates collected in the states of São Paulo and Santa Catarina, Brazil and to test for variability among the isolates of race 65. The classification of 51 isolates resulted in the identification of 10 different physiological races: 4, 38, 55, 65, 73, 81, 83, 85, 321, and 351. Races 65 and 81 predominated, with frequencies of 37.25 and 35.29%, respectively. Regarding the isolates of race 65, wide physiological variability was evident, suggesting that a new differential set should be applied to detect the levels of variation among isolates of a single race of the pathogen.
Revista do Especialista, Jun 9, 2020
Common bean has a high sensitivity to drought stress, particularly during reproductive developmen... more Common bean has a high sensitivity to drought stress, particularly during reproductive development which reduces its yield. In this study we aimed to: (i) evaluate differences in shoot and root response of a mapping population of 107 recombinant inbred lines (RILs) of SEA 5 × AND 277 cross under drought stress, and (ii) identify the QTLs associated with improved plant performance under water stress treatment. Phenotyping was performed under greenhouse conditions where the plants were grown using rhizotrons under well-watered and water-stress conditions. Four QTLs were identified that are related to improved performance under water stress and three of them were related specifically to roots and these are located on chromosomes Pv1 and Pv6. Root superficial area trait explained 32.6% of the variance and may contribute to greater water uptake and improved adaptation of common bean under water stress conditions.
Crop Breeding and Applied Biotechnology, 2020
Between-row spacing of 50 cm and 12 plants per linear meter is recommended, resulting in 240.000 ... more Between-row spacing of 50 cm and 12 plants per linear meter is recommended, resulting in 240.000 plants per hectare. The yield of the IAC Netuno cultivar will depend on the growing season, the growing region, and technological level of the farmer (fertilization, disease and weed control, water supply, and other production factors). TECHNICAL RECOMMENDATION AND SEED PRODUCTION Considering the mean yield obtained, resistance to anthracnose, and tolerance to pathogens of Fusarium wilt, bacterial blight, and angular leaf spot, and especially through exhibiting upright plant architecture, the cultivar IAC Netuno is recommended for cultivation in the rainy, dry, and winter crop seasons in the state of São Paulo, and it can also be grown in the rainy and dry crop seasons in the states of Paraná,
Bragantia, Mar 1, 2019
The aim of this study was to evaluate twelve genotypes of common bean for intermittent drought st... more The aim of this study was to evaluate twelve genotypes of common bean for intermittent drought stress and for root growth angle. The water deficit experiments were conducted in 2015 and 2016 in a randomized block experimental design with split plots and three replications. Two treatments were applied: an irrigated treatment and a water deficit treatment, in which irrigation was suspended in pre-flowering and remained suspended up to the time at which the matrix potential of the soil was measured to be near-199 kPa. At the maximum point of water deficit, physiological and morphological traits were evaluated, and at physiological maturity, the yield compounds and grain yield. To evaluate root growth angle in 2016, a growth pouch system was used in a randomized block design, with five replications.
Crop Breeding and Applied Biotechnology, 2020
IAC Nuance and IAC Tigre are special common bean cultivars for consumption in Brazil and for inte... more IAC Nuance and IAC Tigre are special common bean cultivars for consumption in Brazil and for international markets. IAC Nuance has a 75-day cycle, with cranberry type rajado (streaked/dappled) bean seeds. IAC Tigre has 85-day cycle, a cream-colored seed coat with brown specks (pinto bean type). These cultivars are moderately resistant to anthracnose, angular leaf spot, fusarium wilt, common bacterial blight, and bacterial wilt.
Crop Breeding and Applied Biotechnology, 2020
The black bean cultivar IAC Veloz developed by the dry edible bean (or common bean) breeding prog... more The black bean cultivar IAC Veloz developed by the dry edible bean (or common bean) breeding program of the Instituto Agronômico-IAC stands out because of its early cycle, upright plant type, 1000 seed weight of 220 grams, and mean yield potential of 3770 kg ha-1 in a total of 18 environments.
Crop Breeding and Applied Biotechnology, 2020
IAC 1849 Polaco is a common bean cultivar with a carioca (beige/ cream-colored with brown stripes... more IAC 1849 Polaco is a common bean cultivar with a carioca (beige/ cream-colored with brown stripes) seed coat, 75-day mean maturity , semiupright plant architecture, tolerance to seed darkening, mean 1000-seed weight of 240 grams, resistance to the main diseases in common bean, and mean seed yield of 2464 kg ha-1 obtained in 18 experiments.
Ciência e Agrotecnologia, 2019
Given the impact of climate issues and their direct influence on agricultural production, the aim... more Given the impact of climate issues and their direct influence on agricultural production, the aim of this study was to identify superior genotypes of dry edible common bean under water deficit. Thus, 30 common bean genotypes were evaluated under controlled greenhouse conditions in a randomized block experimental design with split plots and four replications; the plots consisted of the water treatments (irrigated and water deficit) and the split plots consisted of the genotypes. The results showed genetic variability among the accessions evaluated, and in spite of significant reduction in grain yield and stomatal conductance under water deficit, these two traits showed significant, positive correlation and are able to be applied in early selection of genotypes under this stress condition. Another important response was in relation to the genotypes SER-16, SEN 92, FT Paulistinha, Carioca Precoce, IAC Imperador, and SXB 410, which showed the best yield performances in the two water tre...
PLOS ONE, 2019
Common bean is a highly important food in tropical regions, where most production occurs on small... more Common bean is a highly important food in tropical regions, where most production occurs on small farms with limited use of technology and, consequently, greater vulnerability to abiotic stresses such as nutritional stress. Usually phosphorus (P) is the most limiting nutrient for crop growth in these regions. The aim of this study was to characterize the gene expression profiles of the genotypes of common bean IAC Imperador (P-responsive) and DOR 364 (P-unresponsive) under different P concentrations using RNA-seq transcriptome sequencing technology. Plants were grown hydroponically, with application of two P concentrations (4.00 mg L-1 restrictive level and 8.00 mg L-1 control level). Differential expression analyses, annotation, and functional classification were performed comparing genotypes within each P rate administered and comparing each genotype response to the different P levels. Considering differential expression analyses within genotypes, IAC Imperador exhibited 1538 up-regulated genes under P restriction and 1679 up-regulated genes in the control, while DOR 364 exhibited 13 up-regulated genes in the control and only 2 up-regulated genes under P restriction, strongly corroborating P-unresponsiveness of this genotype. Genes related to phosphorus restriction were identified among the differentially expressed genes, including transcription factors such as WRKY, ERF, and MYB families, phosphatase related genes such as pyrophosphatase, acid phosphatase, and purple acid phosphatase, and phosphate transporters. The enrichment test for the P restriction treatment showed 123 enriched gene ontologies (GO) for IAC Imperador, while DOR 364 enriched only 24. Also, the enriched GO correlated with P metabolism, compound metabolic processes containing phosphate, nucleoside phosphate binding, phosphorylation, and also response to stresses. Thus, this study proved to be informative to phosphorus limitation in common bean showing global changes at transcript level.
Nucleus, 2011
Estudou-se a influência do nitrogênio com a utilização da inoculação de Bradyrhizobium e soja. A ... more Estudou-se a influência do nitrogênio com a utilização da inoculação de Bradyrhizobium e soja. A eficiência da inoculação é dependente principalmente de uma boa condição com relação à acidez e a fertilidade do solo. Nas décadas de 1970 a 90, foram realizados diversos estudos com relação ao cultivo da soja em sistemas de rotação com diversas gramíneas (arroz, milho, sorgo, trigo, cana-de-açúcar e também o algodão). Esses estudos mostraram que além da preservação do ambiente, o efeito residual do nitrogênio fixado pelo cultivo da soja e de seus restos culturais, permite a substituição parcial ou total da adubação nitrogenada na cultura seguinte, obtendo-se a otimização da produtividade e a redução parcial dos custos de produção.
Nucleus, 2014
No Estado de São Paulo a deficiência de micronutrientes é rara. Os micronutrientes mais important... more No Estado de São Paulo a deficiência de micronutrientes é rara. Os micronutrientes mais importantes são manganês, boro, zinco, cobre e molibdênio. Os de menor importância são cobre e ferro. As deficiências de micronutrientes só aparecem com o uso excessivo de calcário, fósforo e potássio; no caso do ferro, pode ocorrer toxidez devido ao excesso de chuvas. Altas produtividades de soja exigem níveis elevados de correção de acidez do solo, entretanto, no caso do Mo, é possível reduzir a necessidade de calagem com aplicação do elemento. Em cultivo intensivo é necessário o uso de micronutrientes.
Revista Brasileira de Ciência do Solo, 2011
As fontes de P mais utilizadas são os fosfatos solúveis em água, pela maior facilidade de liberaç... more As fontes de P mais utilizadas são os fosfatos solúveis em água, pela maior facilidade de liberação de P no solo. Entretanto, devido às características dos solos tropicais, grande parte desse P acaba adsorvida às partículas do solo, tornando-se indisponível. Os fosfatos reativos podem, inicialmente, liberar o P de maneira mais lenta; entretanto, a partir dos cultivos, este elemento poderá ser liberado de forma contínua, podendo haver menor fixação. O objetivo deste trabalho foi estudar a resposta à aplicação de duas fontes de P na cultura do triticale e o efeito residual dessa adubação no milheto, cultivados em semeadura direta, avaliando-se: fertilidade do solo; produção de matéria seca; teor e quantidade de P nas plantas e palha de cobertura; densidade de plantas; teor e quantidade de P nos grãos; e produtividade do triticale. O experimento foi conduzido em Latossolo Vermelho distroférrico. No mês de abril foram aplicados, a lanço, em superfície, três tratamentos: sem aplicação de...
Pesquisa Agropecuária Brasileira, 2003
Cotton (Gossypium hirsutum) is known to have a high requirement for K and to be very sensitive to... more Cotton (Gossypium hirsutum) is known to have a high requirement for K and to be very sensitive to low soil pH. Most of K reaches plant roots by diffusion in the soil. As K interacts with Ca and Mg, liming can interfere in K movement in the soil, affecting eventually the plant nutrition. The objective of this work was to study the effect of dolomitic lime and 0, 15, 30, 45 and 60 g kg-1 of K on the supply of K to cotton roots. Cotton plants were grown up to 40 days in 5 L pots containing a Dark Red Latosol (Typic Haplusthox) with 68% and 16% of sand and clay, respectively. There was an increase in dry matter yields and in K accumulation due to K fertilization. Root interception of soil K was also increased by K application, but was not affected by lime. Mass flow and diffusion increased linearly with K levels up to 60 mg kg-1, in pots with lime. In pots without lime the amount of K reaching the roots by diffusion increased up to 45 mg kg-1, but decreased at the highest K level. Accor...
Scientia Agricola, 2005
No reports are registered on responses to boron fertilization nutrient deficiency and toxicity in... more No reports are registered on responses to boron fertilization nutrient deficiency and toxicity in triticale crops. The aim of this study was to evaluate triticale response to different rates of boron in comparison to wheat in an hapludox with initial boron level at 0.08 mg dm-3 4 ´ 4 factorial design trial completely randomized blocks design (n = 4). Boron rates were 0; 0.62; 1.24 and 1.86 mg dm-3; triticale cultivars were IAC 3, BR 4 and BR 53 and IAPAR 38 wheat crop was used for comparison. The wheat (IAPAR 38) crop presented the highest boron absorption level of all. Among triticale cultivars, the most responsive was IAC 53, presenting similar characteristics to wheat, followed by BR 4; these two crops are considered tolerant to higher boron rates in soil. Regarding to BR 53, no absorption effect was observed, and the cultivars was sensitive to boron toxicity. Absorption responses differed for each genotype. That makes it possible to choose and use the best-adapted plants to soil...
Scientia Agricola, 2014
Common bean (Phaseolus vulgaris L.) is frequently grown in weathered soils with low phosphorus (P... more Common bean (Phaseolus vulgaris L.) is frequently grown in weathered soils with low phosphorus (P) availability, and this is one of the main limitations on its production. This study aimed to assess 20 common bean genotypes in a hydroponic system to select the best P concentration for inducing nutritional deficiency and to classify the genotypes in terms of nutrient utilization efficiency. The concentrations of P applied were 8.00, 4.00, 2.00 and 0.05 mg L-1. At 21 days, in the plot subjected to an application of the most severe stress, the 0.05 mg L-1 dose of P, had smaller plant size and early leaf abscission was observed. The 4.00 mg L-1 dose of P was the most efficient in inducing stress for discrimination of cultivars in terms of efficiency of use of P. The following genotypes: IAPAR 81, Carioca Comum, IAC Carioca Tybatã, IAC Imperador and G 2333 stood out as being efficient and responsive to P, while the two cultivars DOR 364 and Jalo Precoce were the most inefficient and unresponsive.
Chilean journal of agricultural research
A common bean (Phaseolus vulgaris L.) breeding program aims to obtain high yielding lines with qu... more A common bean (Phaseolus vulgaris L.) breeding program aims to obtain high yielding lines with quality bean seeds, disease resistance, and upright plant growth habit. The aims of this study were to evaluate the resistance of 527 common bean lines to the principal physiological races of Colletotrichum lindemuthianum and the Fusarium oxysporum f. phaseoli; to estimate genetic parameters and verify the efficiency of the genealogical and bulk methods in conducting these lines. Of these 527 lines, 279 were conducted by the genealogical method and 248 by the bulk method. For the field experiment, the Federer augmented block experimental design was used. Two commercial cultivars carioca seed coat were used as controls for the lines the same color, and more two commercial cultivars for the black seed coat lines. The traits evaluated in the field were plant height (PH), plant growth habit (P), bean seed yield (BY), sieve yield (SY), and lightness of the bean seed coat (L). Of the 527 lines evaluated for anthracnose, 207 were resistant, 57 moderately resistant, and 263 susceptible. For fusarium wilt, 58 were resistant, 53 moderately resistant, and 96 susceptible. For the carioca seed coat lines obtained by the genealogical method, the heritability (h²) estimates stood out for P, BY, L at 40 d, and gain from selection for BY. The h² stood out for black seed coat lines in the PH and SY traits, it can be concluded that the lines obtained by the genealogical method had better performance for all the traits.
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Papers by Jose Antonio de Fatima Esteves