Embrapa Meio-Norte (CPAMN) https://www.alice.cnptia.embrapa.br/alice/handle/item/23 2026-06-24T00:02:35Z 2026-06-24T00:02:35Z IRENE FILHO, j ANDRADE JUNIOR, A. S. de CUADRA, S. V. FARIAS, J. R. B. SILVA, E. M. da https://www.alice.cnptia.embrapa.br/alice/handle/doc/1187638 2026-06-21T10:47:59Z 2026-01-01T00:00:00Z

Título: Using the CSM-CROPGRO-Soybean model to estimate soybean sowing dates in the Cerrado of Piaui, Brazil. Autoria: IRENE FILHO, j; ANDRADE JUNIOR, A. S. de; CUADRA, S. V.; FARIAS, J. R. B.; SILVA, E. M. da Conteúdo: Soybean cultivation is one of the main agricultural activities in Piauí, particularly in the Cerrado biome region. It is a rainfed crop, so the soybean sowing date is crucial to its good yield performance. This study aimed to make an evaluation using the CSM-CROPGRO-Soybean model to simulate soybean grain yield for the Cerrado region of southwest Piauí according to the different sowing dates. The CSM-CROPGROSoybean model and historical climate data were used to simulate scenarios for rainfed soybean, sowing dates for eight municipalities in the southwest region of Piauí. Two soybean cultivars were considered: BRS 8980 IPRO (BRS 8980) and the BMX 84I86 cultivar (Dominio). The simulated yield results were analyzed regarding frequency distribution and yield breaks. Sowings made in the first ten days of November had longer cycles, while later, sowings resulted in shorter cycles. This difference in duration was 16.4% for the BRS 8980 cultivar and 13.1% for the Dominio cultivar.

2026-01-01T00:00:00Z BORGES, R. L. B. de JESUS, M. C. de CAMARGO, R. C. R. de SANTOS, F. de A. R. dos https://www.alice.cnptia.embrapa.br/alice/handle/doc/1187476 2026-06-14T17:55:16Z 2014-01-01T00:00:00Z

Título: Pollen content of marmeleiro (Croton spp., Euphorbiaceae) honey from Piauí State, Brazil. Autoria: BORGES, R. L. B. de; JESUS, M. C. de; CAMARGO, R. C. R. de; SANTOS, F. de A. R. dos Conteúdo: Samples of honey, called marmeleiro honey by its producers, from the state of Piauí, Brazil, were analysed to study their pollen contents. Samples were dissolved in water, alcohol was added to the solution and the samples were subjected to acetolysis. The absolute concentration of pollen grains in the samples was established using an exotic marker. Multivariate cluster analysis was performed to determine the similarity amongst samples. A total of 158 pollen types were identified from 48 families and 103 genera of plants. The most prevalent families in the pollen spectra were Leguminosae, Myrtaceae, Rubiaceae and Euphorbiaceae. The pollen types Mimosa caesalpiniifolia and Pityrocarpa moniliformis were predominant in 12 samples. Other notable pollen types were Borreria verticillata, Combretum and Mitracarpus salzmannianus. Similarity analysis did not distinguish samples produced on different vegetation types or in the Piauí microregions. Only three samples were considered monofloral. In contrast to beekeepers’ designations, only two of the samples studied can potentially be considered monofloral marmeleiro honeys (Croton spp.). Our results stress the need for further studies on the pollen/nectar contribution to honey by the Croton species in this semi-arid region and demonstrate the importance of melissopalynology in investigating the botanical origin of honeys.

2014-01-01T00:00:00Z https://www.alice.cnptia.embrapa.br/alice/handle/doc/1187456 2026-06-22T11:48:59Z 2026-01-01T00:00:00Z

Título: Saúde do solo em agroecossistemas da zona de transição Cerrado-Caatinga. Editor(es): LEITE, L. F. C.; SOUZA, H. A. de Conteúdo: Sistemas de uso do solo nos principais biomas do Meio-Norte do Brasil; Solos do Piauí e do Maranhão: principais implicações agrícolas e não agrícolas; Clima, água no solo e agricutura da região Meio-Norte do Brasil; Impacto dos agroecossistemas nos atributos físicos do solo nos estados do Maranhão e do Piauí; Fertilidade do solo e nutrição de planta em sistemas agrícolas do Piauí e do Maranhão; Estoques de carbono no solo em sistemas agrícolas do Piauí e do Maranhão; Biologia do solo em agroecossitemas do Piauí e Maranhão; Poluição do solo e da água sob o bioma Cerrado do Piauí: riscos e perspectivas; Princípios de saúde do solo aplicados aos sistemas agrícolas do Meio-Norte; Manejo sustentável do solo como oportunidade para pagamento por serviços ambientais no Meio-Norte brasileiro.

2026-01-01T00:00:00Z DINIZ SOBRINHO, F. de A. COELHO, R. C. MOURA, J. de O. NASCIMENTO, I. F. do BAJAY, M. M. CARVALHO, L. C. B. BRITTO, F. B. SARMENTO, J. L. R. AZEVEDO, D. M. M. R. MASTRANGELO, S. SOUSA, L. A. de ARAUJO, A. M. de https://www.alice.cnptia.embrapa.br/alice/handle/doc/1187209 2026-06-06T12:54:00Z 2026-01-01T00:00:00Z

Título: Genomic analysis revealed hotspots of genetic adaptation and risk of disappearance in brazilian goat populations. Autoria: DINIZ SOBRINHO, F. de A.; COELHO, R. C.; MOURA, J. de O.; NASCIMENTO, I. F. do; BAJAY, M. M.; CARVALHO, L. C. B.; BRITTO, F. B.; SARMENTO, J. L. R.; AZEVEDO, D. M. M. R.; MASTRANGELO, S.; SOUSA, L. A. de; ARAUJO, A. M. de Conteúdo: The conservation of genetic resources is crucial for maintaining biological diversity and ensuring the sustainability of animal production. Characterizing regions of homozygosity (ROHs), heterozygosity-rich regions (HRRs), and levels of inbreeding is crucial for the management and conservation of livestock populations. In Brazil, little is known about these genomic parameters in Marota goats. Thus, this study aimed to evaluate these characteristics to support conservation strategies for these breeds. Methods: Genomic analyses were conducted using the Illumina Goat SNP50 BeadChip to investigate ROH, HRR, and to estimate the inbreeding coefficient derived from ROHs (FROH) in Marota and Anglo-Nubian goats. This study evaluated 192 individuals from three distinct herds. ROHs were classified according to their length; genes located within both ROH and HRR regions were identified and functionally annotated to explore their potential biological significance.

2026-01-01T00:00:00Z