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| LIRA, E.; SOUZA, J.; GALDINO, L.; MACÊDO, C.; SILVA, A.; MELO, Y.; SANTOS, I.; ARRIEL, N. H. C.; MENESES, C.; MAIA, J.. |
| Salinity in soil can affect Jatropha seedling metabolism, interfering with plant establishment. In this study, the effect of salinity on the mobilization of reserves during the development of Jatropha seedlings was tested. Two genotypes of Jatropha were used and three concentrations of NaCl were applied between the 4th and 8th days after germination. The effects of salinity on seedling growth, in terms of fresh and dry phytomass, ionic partition, and sugar quantification, starch, proteins, amino acids, and lipids were evaluated in cotyledon leaves, hypocotyls, and roots. There was an increase in the content of all classes of macromolecules analyzed in at least one of the organs. It is hypothesized that the hypocotyls acted as an accumulating organ of Na+.... |
| Tipo: Artigo de periódico |
Palavras-chave: Partition of macromolecules; Pinhão-manso; Salinidade; Jatropha Curcas; Soil salinity; Seed germination. |
| Ano: 2021 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1139691 |
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| ALVES, S. R. M.; LOPES, R.; MENESES, C.; VALENTE, M. S. F.; MARTINS, C. C.; FERREYRA RAMOS, S.; OLIVEIRA, I.; FRAXE, T. de J. P.; COSTA, L.; LOPES, M. T. G.. |
| The Amazon is a center of diversity for Capsicum chinense Jacq., with wide genetic and morphological variability, but little exploration has been performed there to facilitate their improvement. This study aimed to characterize and evaluate C. chinense genotypes for the development of cultivars by determining the optimal size of the experimental plot and the minimum sample size to ensure a precise estimation of yield. A total of 23 genotypes were evaluated, and in multivariate analyses, the plants were characterized by 21 morphological descriptors and eight quantitative traits related to biometry and yield. The recommended sample size for fruit evaluation was defined based on simulations with subsample resampling and evaluation of the semi-amplitudes of... |
| Tipo: Artigo de periódico |
Palavras-chave: Pimenta-de-cheiro; Experimental precision; Capsicum Chinense; Plant breeding. |
| Ano: 2022 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1145896 |
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| FERREYRA RAMOS, S. L.; LOPES, M. T. G.; MENESES, C.; DEQUIGIOVANNI, G.; MACEDO, J. L. V. de; LOPES, R.; SEBBENN, A. M.; SILVA, R. F. da; FRAXE, T. de J. P.; VEASEY, E. A.. |
| Astrocaryum aculeatum, a palm tree incipiently domesticated from upland ecosystems in the Brazilian Amazon, is especially adapted to anthropized areas. The pulp of the fruit, obtained by extractivism, is consumed fresh by the Amazonian population. The objective of the study is to evaluate the diversity and genetic structure of the natural populations of A. aculeatum, exploited by extractive farmers in Amazonas, Brazil, seeking to suggest conservation and management strategies for this species. |
| Tipo: Artigo de periódico |
Palavras-chave: Tucumã-do-Amazonas; Molecular marker; Populations genetics; Tucumã; Astrocaryum aculeatum. |
| Ano: 2022 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1148131 |
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