Results 41 to 50 of about 23,978 (215)

Dinâmica da regeneração do subsolo de áreas degradadas dentro do bioma Cerrado Dynamics of the subsoil regeneration in degraded areas of Cerrado

open access: yesRevista Brasileira de Engenharia Agrícola e Ambiental, 2007
Realizou-se este trabalho com o objetivo de se avaliar as modificações ocorridas nas propriedades físicas e químicas do subsolo revegetado, em áreas degradadas dentro do bioma Cerrado e verificar qual das coberturas vegetais estudadas promoveu melhores ...
Graciela B. Rodrigues   +2 more
doaj   +1 more source

Novel tetronamides derived from mucobromic acid: synthesis, structural elucidation, DFT calculations and phytotoxic activity

open access: yesPest Management Science, EarlyView.
The acyclic mucobromic acid, activated by (1S)‐(+)‐10‐camphorsulfonic acid, afforded the chiral compound 1b, precursor for aza‐Michael addition/elimination on the butenolide yielding tetronamides 2b‐7b. Their relative SRSR configuration was confirmed by the spectrometric methods, DFT calculation and statistical methods.
Kamylla CF Faria   +2 more
wiley   +1 more source

Recuperação de área degradada por construção de hidroelétrica com adubação verde e corretivo Soil reclamation by green manure and soil ammendements in areas degraded by hydroelectric power plant construction

open access: yesRevista Brasileira de Ciência do Solo, 2008
As "áreas de empréstimo" em hidrelétricas são as áreas remanescentes da construção da fundação da barragem e podem ser consideradas áreas degradadas, pois delas foram retirados os horizontes superficiais do solo.
Marlene Cristina Alves   +1 more
doaj   +1 more source

Pasture structure and sheep performance supplemented on different tropical grasses in the dry season

open access: yesRevista Mexicana de Ciencias Pecuarias, 2020
The objective was to evaluate the productive and structural characteristics of tropical grasses and the performance of sheep supplemented during the dry season.
Leonardo Santana Fernandes   +6 more
doaj   +1 more source

Phytochemical analysis of Brachiaria grasses from Bowen University dairy farm and molecular docking of constituents with insulin-like growth factor binding protein

open access: yesInformatics in Medicine Unlocked, 2023
Objectives: Brachiaria spp. are nutritious plants that are widely consumed by cows to enhance milk productivity. This study was designed to evaluate the qualitative and quantitative phytochemical constituents of three Brachiaria grasses which are ...
Peluola Olujide Ayeni   +6 more
doaj   +1 more source

Brachiaria umbellata Claytof

open access: yes, 2022
11. Brachiaria umbellata (Trin.) Clayton in Kew Bull. 34: 559. 1980 (F ig. 8D–F, 11A). Panicum umbellatum Trin., Gram. Panic.: 238. 1826. Holotypus: MAURITIUS: sine loco, 1825, Sieber Hb. Maur. II. No. 34 (LE Herbarium Trinii 996.1 microfiche!; iso-: BR [BR0000008756435] image!, G [G00022428, G00022429] image!, H [H1048911, H1568372] image!, K [
openaire   +2 more sources

New Considerations on Meiosis, Affinity and Genomic Constitution in Aneuploids and Interploid Hybrids of Urochloa P. Beauv. (Brachiaria)

open access: yesPlant Breeding, EarlyView.
ABSTRACT The combination of polyploidy, apomixis and the formation of aneuploid and interploid hybrids makes the genus Urochloa an interesting system for investigating meiotic stability and genome behaviour in grasses. In this study, routine meiotic analysis and genomic in situ hybridization (GISH) were used to (i) evaluate meiosis in three hybrids of ...
Isabella Campos Moraes   +3 more
wiley   +1 more source

Accumulation and allocation of dry matter and nutrients in brachiaria decumbens and ruziziensis in an intensive forage production system

open access: yes, 2023
The objective of this study was to evaluate the accumulation and allocation of dry matter and nutrients by Brachiaria decumbens and ruziziensis, in three cuts, cultivated with an adequate supply of nutrients in the soil.
Wesley Oliveira de Assis
core  

Carbon, nitrogen and natural abundance of δ13C e δ15N of light-fraction organic matter under no-tillage and crop-livestock integration systems=Carbono, nitrogênio e abundância natural de δ15N e δ13C da matéria orgânica leve sob sistemas plantio direto e integração lavoura-pecuária [PDF]

open access: yesActa Scientiarum. Agronomy, 2012
This study aimed to quantify the light organic matter mass (LOM) in water, free light fraction (FLF) of soil organic matter (SOM) and carbon (C), nitrogen (N) contents and natural abundance of δ13C e δ15N contained in the mass of LOM, C and N in the FLF ...
Sidinei Julio Beutler   +4 more
doaj   +1 more source

Brachiaria fragrans A. Camus

open access: yes, 2022
6. Brachiaria fragrans A. Camus in Bull. Soc. Bot. F rance 82: 22. 1935 (F ig. 6). Lectotypus (designated here): MADAGASCAR. Reg. Atsimo-Andrefana [Prov. Toliara]: plateau calcaire au N du F iherenana, forêt sèche de F andrare à 40 km NE de Tulear, 400 – 700 m, III.1934, Humbert 14315 (P [P00450177]!; isolecto-: K [K00024472]!, P [P00450178 ...
openaire   +2 more sources

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