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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Amaral, J. F. T. Brinate, S. V. B. Colodetti, T. V. Rodrigues, W. N. Machado, L. S. Martins, L. D. Tomaz, M. A. |
| Description | Country affiliation: Brazil Author Affiliation: Martins LD ( Programa de Pós-Graduação em Produção Vegetal, Centro de Ciências Agrárias da Universidade Federal do Espírito Santo, Alegre, ES, Brasil deleon_lima@hotmail.com.); Rodrigues WN ( Programa de Pós-Graduação em Produção Vegetal, Centro de Ciências Agrárias da Universidade Federal do Espírito Santo, Alegre, ES, Brasil.); Machado LS ( Programa de Pós-Graduação em Produção Vegetal, Centro de Ciências Agrárias da Universidade Federal do Espírito Santo, Alegre, ES, Brasil.); Brinate SV ( Programa de Pós-Graduação em Produção Vegetal, Centro de Ciências Agrárias da Universidade Federal do Espírito Santo, Alegre, ES, Brasil.); Colodetti TV ( Programa de Pós-Graduação em Produção Vegetal, Centro de Ciências Agrárias da Universidade Federal do Espírito Santo, Alegre, ES, Brasil.); Amaral JF ( Inner Mongolia, China.); Tomaz MA ( Programa de Pós-Graduação em Produção Vegetal, Centro de Ciências Agrárias da Universidade Federal do Espírito Santo, Alegre, ES, Brasil.) |
| Abstract | The expansion of agriculture to new areas in order to increase the competitiveness of coffee producing countries has resulted in cultivation expanding into regions with lower natural fertility. This scenario has created the need to differentiate genotypes of Conilon coffee based on their tolerance to low levels of nutrients in the soil, especially phosphorus, which imposes high limitations on crop yield in tropical regions. In this context, the objective of this study was to identify differential tolerance among genotypes of Conilon coffee cultivated in environments with different levels of phosphorus availability in the soil. The experiment was conducted in a controlled environment, following a completely randomized design, with three replications in a factorial scheme 13 x 3, the factors were as follows: 13 genotypes of Conilon coffee from groups of different ripening cycles and three environments with different levels of phosphorus availability in the soil (fertilization without phosphorus supply, and phosphorus supply at 50 and 100% of recommendations). Discrimination of tolerance was based on 14 variables, including vegetative growth, accumulation of dry matter, nutrient content, and nutritional efficiencies. Estimates of genetic parameters indicated high genotypic variability for genotypes cultivated in environments with low phosphorus availability in the soil. It was possible to classify genotypes 22, 23, 24, 67, 76, 77, and 83 as tolerant of a low availability of phosphorus in the soil during early development. There was no clear relationship between ripening cycles and the tolerance of the genotypes to low phosphorus availability in the soil. |
| e-ISSN | 16765680 |
| Journal | Genetics and Molecular Research |
| Issue Number | 3 |
| Volume Number | 14 |
| Language | English |
| Publisher | Fundação de Pesquisas Científicas de Ribeirão Preto |
| Publisher Date | 2015-09-08 |
| Publisher Place | Brazil |
| Access Restriction | Open |
| Subject Keyword | Adaptation, Physiological Genetics Coffea Drug Effects Genotype Phosphorus Deficiency Chemistry Agriculture Biological Transport Growth & Development Metabolism Factor Analysis, Statistical Fertilizers Genetic Variation Pharmacology Research Support, Non-u.s. Gov't Discipline Genetics Discipline Molecular Biology Discipline Bioinformatics |
| Content Type | Text |
| Resource Type | Article |
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