1. Compressibility and water availability in Albaqualf soils under different deployment times in no-tillage

ABSTRACT: The southern Brazilian lowlands have been historically used for flooded rice cultivation. Over time, heavy machinery and intensive tillage practices have resulted in soil structure disruption, soil compaction, higher production costs and lower agricultural profitability. This study aimed to evaluate the effect of different deployment times of no-ti

Sci. agric. (Piracicaba, Braz.). Publicado em: 2018-09

2. Two independent grain-length mutants mapped to a single region on the long arm of chromosome 2 in rice

ABSTRACT Grain shape in rice is a key determinant of grain appearance, yield and market value, and thus has been widely studied. Rice mutant lines with long-grain phenotypes were previously isolated from an M2 population derived from mutagenized mature pollen grains that were treated with gamma-ray irradiation for a cultivar Ma85. To understand the genetic b

Bragantia. Publicado em: 02/08/2018

3. Arsenic Speciation in Fish and Rice by HPLC-ICP-MS Using Salt Gradient Elution

This paper presents arsenic speciation studies by high-performance liquid chromatography with inductively coupled plasma-mass spectrometer (HPLC-ICP-MS) using a chromatography column containing a strong anion exchange stationary phase (Agilent Bio SAX G3154A/101) for determination of arsenobetaine (AsB), dimethylarsinic acid (DMA), AsIII, monomethylarsonic a

J. Braz. Chem. Soc.. Publicado em: 2018-08

4. Erratum: Phenolics in Two Alternanthera Species Residues Affect the Germination and Early Seedling Growth of Rice (Oryza sativa)

Planta daninha. Publicado em: 30/07/2018

5. Daycent Simulation of Methane Emissions, Grain Yield, and Soil Organic Carbon in a Subtropical Paddy Rice System

ABSTRACT The DayCent ecosystem model, widely tested in upland agroecosystems, was recently updated to simulate waterlogged soils. We evaluated the new version in a paddy rice experiment in Southern Brazil. DayCent was used to simulate rice yield, soil organic carbon (SOC), and soil CH4 fluxes. Model calibration was conducted with a multiple-year dataset from

Rev. Bras. Ciênc. Solo. Publicado em: 02/07/2018

6. THERMODYNAMIC PROPERTIES OF SORPTION OF RICE IN THE HUSK

ABSTRACT This study aimed to determine the thermodynamic properties of sorption processes (desorption and adsorption) of rice in the husk, cv. Urucuia. A static-gravimetric method was used to reach equilibrium moisture content at different temperatures (10, 20, 30, 40, and 50 °C ± 1°C) and relative humidity levels (10, 30, 50, 70, and 90 % ± 2%). A decre

Eng. Agríc.. Publicado em: 2018-06

7. Parametrização de Modelos e Uso de Dados Estimados de Radiação Solar Global na Simulação de Produtividade do Arroz Irrigado

Resumo O objetivo deste estudo foi avaliar a utilização de dados estimados de radiação solar global nas simulações de produtividade potencial de arroz irrigado. A radiação solar global foi estimada por quatro modelos empíricos, baseados na temperatura do ar, e um derivado de satélite meteorológico. Os modelos empíricos foram calibrados e validado

Rev. bras. meteorol.. Publicado em: 2018-06

8. Soil CH4 and N2O Emissions from Rice Paddy Fields in Southern Brazil as Affected by Crop Management Levels: a Three-Year Field Study

ABSTRACT Rice yield increases in response to improvements in crop management, but the impact on greenhouse gas (GHG) emissions in the subtropical region of Southern Brazil remains unknown. A three-year field study was developed aiming to evaluate the impact that an increase in crop management levels (high and very high) has on soil methane (CH4) and nitrous

Rev. Bras. Ciênc. Solo. Publicado em: 03/05/2018

9. Effects of Long-Term Fertilization Management Practices on Soil Microbial Carbon and Microbial Biomass in Paddy Soil at Various Stages of Rice Growth

ABSTRACT Soil microbial biomass plays a significant role in soils, and it is often used as an early indicator of change in soil quality. Soil microbial biomass is affected by different fertilization management practices. Therefore, the impact of different long-term fertilization management practices on the soil organic carbon (SOC) content, soil microbial bi

Rev. Bras. Ciênc. Solo. Publicado em: 03/05/2018

10. Replacement of Commercial Silica by Rice Husk Ash in Epoxy Composites: A Comparative Analysis

Since epoxy resins are used as composite matrix with excellent results, and silica is one of the fillers most often employed, this study compared the performance of rice husk ash (RHA) as filler in epoxy composites, in replacement for high-purity silica. Composites were molded containing 20%, 40%, and 60% (wt) silica or RHA. Viscosity analysis, infrared spec

Mat. Res.. Publicado em: 05/04/2018

11. BRS A701 CL: a new irrigated rice cultivar adapted to the clearfield® production system

Abstract A partnership program of Embrapa and BASF resulted in the development of a new irrigated rice cultivar adapted to the Clearfield® production system in Rio Grande do Sul. The cultivar is tolerant to the imidazolinone herbicide kifix®. In field trials in Rio Grande do Sul it produced a mean yield of 8394 kg ha-1.

Crop Breed. Appl. Biotechnol.. Publicado em: 2018-04

12. HRM-facilitated rapid identification and genotyping of mutations induced by CRISPR/Cas9 mutagenesis in rice

Abstract The clustered regularly interspaced short palindromic repeat (CRISPR)/CRISPR-associated (Cas) technology has recently emerged as a powerful genomic editing tool with great potential for crop breeding. However, commonly used protocols for screening of CRISPR/Cas9-induced mutations are laborious, time-consuming, and costly. In the present study we exa

Crop Breed. Appl. Biotechnol.. Publicado em: 2018-04