scholarly journals Soybean yield in future climate scenarios for the state of Rio Grande do Sul, Brazil

2017 ◽  
Vol 52 (6) ◽  
pp. 380-392 ◽  
Author(s):  
Jossana Ceolin Cera ◽  
Nereu Augusto Streck ◽  
Cesar Augusto Jarutais Fensterseifer ◽  
Simone Erotildes Teleginski Ferraz ◽  
Kelin Pribs Bexaira ◽  
...  
Keyword(s):  
21St Century ◽  
Rio Grande ◽  
Simulation Models ◽  
The State ◽  
Future Climate ◽  
Yield Potential ◽  
Climate Scenarios ◽  
Rio Grande Do Sul ◽  
Soybean Yield ◽  
Sowing Dates

Abstract: The objective of this work was to estimate the yield potential and the water-limited yield of soybean (Glycine max) in the state of Rio Grande do Sul, Brazil, in two future climate scenarios, SRES A1B and RCP4.5, using the SoySim and Cropgro-Soybean simulation models. In both models, three maturity groups (4.8, 5.5, and 6.0) and six sowing dates (09/01, 10/01, 11/01, 12/01, 01/01, and 02/01) were considered in the SRES A1B-CMIP3 and RCP4.5-CMIP5 scenarios. The analyzed variable was grain yield at 13% moisture (Mg ha-1). Soybean yield potential in Rio Grande do Sul should increase up to the end of the 21st century, according to both scenarios. Water-limited yield of soybean also increases up to the end of the 21st century, by the SRES A1B-CMIP3 scenario; however, it will decrease in future periods, by the RCP4.5-CMIP5 scenario because of limited soil water.

scholarly journals Estimating cassava yield in future IPCC climate scenarios for the Rio Grande do Sul State, Brazil

2017 ◽  
Vol 47 (2) ◽  
Author(s):  
Luana Fernandes Tironi ◽  
Nereu Augusto Streck ◽  
Amanda Thirza Lima Santos ◽  
Charles Patrick de Oliveira de Freitas ◽  
Lilian Osmari Uhlmann ◽  
...  
Keyword(s):  
Coupled Model ◽  
Rio Grande ◽  
The State ◽  
Future Climate ◽  
Human Consumption ◽  
Climate Scenarios ◽  
Rio Grande Do Sul ◽  
Model Intercomparison ◽  
Tuberous Roots ◽  
Intercomparison Project

ABSTRACT: The objective of this study was to simulate the yield of two cassava cultivars in two IPCC future climate scenarios, the SRES-A1B (Cmip3) and the RCP4.5 (Cmip5), for the state of Rio Grande do Sul, Brazil. The Simanihot model, with the Thornthwaite and Mather water balance sub-model, and the SRES-A1B (Cmip3 - Third Coupled Model Intercomparison Project) and RCP4.5 (Cmip5 - Fifth Coupled Model Intercomparison Project) scenarios of the Fourth and Fifth IPCC Assessment Report, respectively, was used. Cassava cultivars used in this study were 'Fepagro - RS13' (forrage) and 'Estrangeira' (human consumption). In both cultivars, there was an increase in tuberous roots yield in future climate scenarios. The cultivar for human consumption benefits more roots yield in the scenario with higher CO2 (Cmip3 scenario); whereas, the forage cultivar benefits more the Cmip5 scenario. Among the three future periods (2010-2039, 2040-2069 e 2070-2099), changes in tuberous roots yield are more evident in the end of the century period (2070-2099) and for early planting dates (01 September and 01 October). The northeastern region of the state has the greatest changes in tuberous roots yield in future climates, because this is the coldest region, with winter minimum temperature during between 6 and 8oC.

scholarly journals SIMULAÇÃO DO EFEITO DA IRRIGAÇÃO SOBRE O RENDIMENTO DA SOJA NA BACIA DO RIO POTIRIBU, RIO GRANDE DO SUL

Irriga ◽  
2018 ◽  
Vol 23 (1) ◽  
pp. 44-54
Author(s):  
Alejandro Campos Castillo ◽  
José Antônio Saldanha Louzada ◽  
Nilza Maria dos Reis Castro
Keyword(s):  
Water Stress ◽  
River Basin ◽  
Hydrological Modeling ◽  
Rio Grande ◽  
The State ◽  
Model Parameters ◽  
Rio Grande Do Sul ◽  
Soybean Yield ◽  
Yield Increase ◽  
Rainfed Conditions

SIMULAÇÃO DO EFEITO DA IRRIGAÇÃO SOBRE O RENDIMENTO DA SOJA NA BACIA DO RIO POTIRIBU, RIO GRANDE DO SUL  ALEJANDRO CAMPOS CASTILLO1; JOSÉ ANTÔNIO SALDANHA LOUZADA2 E NILZA MARIA DOS REIS CASTRO2 1 Engenheiro Ambiental. Mestre em Recursos Hídricos. [email protected] 2 Professor(a), Instituto de Pesquisas Hidráulicas da Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves 9500, Caixa Postal 15029, CEP: 91501-970 Porto Alegre – RS, email: [email protected] e [email protected]  1 RESUMO A soja cultivada em condições de sequeiro é a principal cultura do estado do Rio Grande do Sul e o estresse hídrico é o fator isolado que mais influencia a variação interanual do seu rendimento. Especificamente, a precipitação do período de dezembro a março explica cerca de 80% desta variação. A bacia do rio Potiribu, situada na região noroeste do estado do Rio Grande do Sul, apresenta características predominantemente agrícolas e tem no cultivo da soja sua atividade econômica mais importante. O objetivo deste trabalho foi estimar o efeito da irrigação sobre o rendimento da soja na bacia do rio Potiribu, o que se justifica por sua importância para a economia do estado e mais especificamente para a região escolhida para o seu desenvolvimento. O modelo AquaCrop Versão 4.0 foi ajustado para simular o crescimento da soja em condições de sequeiro para um histórico de dez safras no período 2003/2004 – 2012/2013. Esse ajuste teve como variável de referência registros de produtividades de soja na região. Definidos os parâmetros do modelo, as simulações foram repetidas com aplicação de irrigação. Os resultados mostraram um incremento médio no rendimento de 1,67 t ha-1 comparado à média histórica para o período de estudo. Palavras – chave: AquaCrop, modelagem agro-hidrológica, estresse hídrico, soja. CASTILLO, A.C.; LOUZADA, J.A.S.; CASTRO, N.M.R.SIMULATION OF THE EFFECT OF IRRIGATION ON SOYBEAN YIELD IN POTIRIBU RIVER WATERSHED, RIO GRANDE DO SUL  2 ABSTRACT Soybean cultivated under rainfed conditions is the main crop of Rio Grande do Sul state and water stress is the single factor that most influences the interannual variation of its yield. Specifically, the precipitation of the period from December to March accounts for about 80% of this variation. The Potiribu river basin, located in the northwest region of the state of Rio Grande do Sul, presents predominantly agricultural characteristics and soybean cultivation is its most important economic activity. The objective of this study was to estimate the effect of irrigation on soybean yield in Potiribu river basin, which is justified by its importance for the state economy and more specifically for the region chosen for its development. The AquaCrop Version 4.0 model was adjusted to simulate soybean growth under rainfed conditions for a set of ten harvests cycles in the period 2003/2004 – 2012/2013. This adjustment had as reference variable records of soybean productivities in the region. Once the model parameters were defined, the simulations were repeated under irrigation application. The results showed an average yield increase of 1.67 t ha-1 compared to the historical average for the analyzed period. Keywords: AquaCrop, agro-hydrological modeling, water stress, soybean

scholarly journals Barley cultivar MN 698, high malting quality for the state of Rio Grande do Sul

2006 ◽  
Vol 36 (1) ◽  
pp. 279-281 ◽  
Author(s):  
Eduardo Caierão ◽  
Alessandro Luis Sperotto
Keyword(s):  
Grain Yield ◽  
Rio Grande ◽  
Industrial Sector ◽  
The State ◽  
Yield Potential ◽  
Malting Quality ◽  
Barley Cultivar ◽  
Rio Grande Do Sul ◽  
Important Advance ◽  
Moderately Resistant

MN 698 is a new cultivar developed by AmBev that resulted from a cross between the cultivars MN 599 and MN 635. MN 698 shows a grain yield potential higher than 4t ha-1, has early cycle and is moderately resistant to lodging. Its spike is uniform and produces around 20 grains well-distributed. MN 698 shows a medium tillering capacity (two to three per plant), and is characterized by the presence of anthocyanin in the culm basis, arists, and glumes. It is the national cultivar with the highest quality and represents an important advance for this cereal in Brazil, combining interests of both the producer and the industrial sector.

scholarly journals Estudo do impacto de diferentes índices associados ao El Niño oscilação sul na produtividade de soja no Rio Grande do Sul

2018 ◽  
Vol 40 ◽  
pp. 82 ◽  
Author(s):  
Diogo Alessandro Arsego ◽  
Simone Erotildes Teleginski Ferraz ◽  
Nereu Augusto Streck ◽  
Andrea De Oliveira Cardoso ◽  
Alencar Junior Zanon
Keyword(s):  
El Niño ◽  
El Nino ◽  
Southern Oscillation ◽  
Rio Grande ◽  
The State ◽  
Rio Grande Do Sul ◽  
Soybean Yield ◽  
Agricultural Planning ◽  
Sea Surface Temperature Anomalies ◽  
In The Beginning

The main factor associated with decreaes in soybean yield in Rio Grande do Sul is the irregular distribution of precipitation and the El Niño Southern Oscillation (ENSO) is the major responsible for the precipitation variability. The aim of this work was to analyze the relationship between climatic indicators associated with ENSO and soybean yield in the State. Series of soybean yield from 87 municipalities were evaluated between 1984 and 2013. These series were ordered in three groups of similar behavior (high, medium and low yield). The mean profiles of these groups were correlated with indices for Sea Surface Temperature anomalies in the Niño 3.4 region, the Southern Oscillation Index (SOI) and the Multivariate ENSO Index (MEI) with differents lags. SOI and MEI showed higher correlations with yield in periods of higher water requirement of the crop. El Niño episodes have beenassociated with increased yield and in situations of neutrality and La Niña, the influence of the phenomenon is less evident. In addition, the absence of a significant correlation in the time of preparation of the crop and in the beginning of the plantation evidences the necessity of including new indices in the discussions of agricultural planning in the State.

scholarly journals Crustacea, Isopoda, Oniscidea Latreille, 1802: new continent record and distribution extension in Brazil

Check List ◽  
2010 ◽  
Vol 6 (2) ◽  
pp. 217 ◽  
Author(s):  
Mariana Juventina Magrini ◽  
Paula Beatriz Araujo ◽  
Marcio Uehara-Prado
Keyword(s):  
Rio Grande ◽  
Sao Paulo ◽  
The State ◽  
Southeastern Brazil ◽  
Pitfall Traps ◽  
São Paulo ◽  
Undescribed Species ◽  
Rio Grande Do Sul ◽  
Serra Do Mar ◽  
First Time

Terrestrial Isopods were sampled in four protected Atlantic Forest areas located in Serra do Mar, state of São Paulo, southeastern Brazil. A total of 2,217 individuals of six species (Atlantoscia sp., Benthana werneri, Pseudodiploexochus tabularis, Pudeoniscus obscurus, Styloniscus spinosus and Trichorhina sp.) were captured in pitfall traps. The exotic species S. spinosus is recorded for the first time for the Americas. Another introduced species, P. tabularis, previously recorded only from the state of Rio Grande do Sul, had its geographic distribution extended to the state of São Paulo. The most abundant isopods in this study belong to an undescribed species of Atlantoscia.

Epidemiology of influenza B infection in the state of Rio Grande do Sul, Brazil, from 2003 to 2019

2021 ◽  
Author(s):  
Marina Beretta Duarte ◽  
Tatiana Schäffer Gregianini ◽  
Letícia G. Martins ◽  
Ana Beatriz G. Veiga
Keyword(s):  
Rio Grande ◽  
The State ◽  
Influenza B ◽  
Rio Grande Do Sul

scholarly journals Access to treatment for phenylketonuria by judicial means in Rio Grande do Sul, Brazil

2015 ◽  
Vol 20 (5) ◽  
pp. 1607-1616 ◽  
Author(s):  
Luciano Mangueira Trevisan ◽  
Tatiele Nalin ◽  
Tassia Tonon ◽  
Lauren Monteiro Veiga ◽  
Paula Vargas ◽  
...  
Keyword(s):  
Genetic Diseases ◽  
Rio Grande ◽  
Right To Health ◽  
The State ◽  
Rio Grande Do Sul ◽  
Access To Treatment ◽  
Unified Health System ◽  
Department Of Health ◽  
Legal Remedy ◽  
The Right

Treatment of phenylketonuria (PKU) includes the use of a metabolic formula which should be provided free of charge by the Unified Health System (SUS). This retrospective, observational study sought to characterize judicial channels to obtain PKU treatment in Rio Grande do Sul (RS), Brazil. Lawsuits filed between 2001- 2010 and having as beneficiaries PKU patients requesting treatment for the disease were included. Of 20 lawsuits filed, corresponding to 16.8% of RS patients with PKU, 19 were retrieved for analysis. Of these, only two sought to obtain therapies other than metabolic formula. In all the other 17 cases, prior treatment requests had been granted by the State Department of Health. Defendants included the State (n = 19), the Union (n = 1), and municipalities (n = 4). In 18/19 cases, the courts ruled in favor of the plaintiffs. Violation of the right to health and discontinuation of State-provided treatment were the main reasons for judicial recourse. Unlike other genetic diseases, patients with PKU seek legal remedy to obtain a product already covered by the national pharmaceutical assistance policy, suggesting that management failures are a driving factor for judicialization in Brazil.

scholarly journals Freshwater temperature in the state of Rio Grande do Sul, Southern Brazil, and its implication for fish culture

2008 ◽  
Vol 6 (2) ◽  
pp. 275-281 ◽  
Author(s):  
Luciano de Oliveira Garcia ◽  
Carlos Eduardo Copatti ◽  
Flávio Wachholz ◽  
Waterloo Pereira Filho ◽  
Bernardo Baldisserotto
Keyword(s):  
Water Temperature ◽  
Fish Species ◽  
Native Species ◽  
Amazon Basin ◽  
Rio Grande ◽  
The State ◽  
Tropical Species ◽  
Southern Brazil ◽  
Rio Grande Do Sul ◽  
Lower Growth

In this study we verified data of water temperatures collected by CORSAN-RS from 1996 to 2004 in several cities of the state of Rio Grande do Sul, southern Brazil, and analyzed the possibility of raising the most cultivated fish species in Brazil. The water temperature from 1996 to 2004 was 16 to 28ºC in summer, 17 to 23ºC in fall, 14 to 17ºC (down to 9ºC in the coldest months) in winter and 14 to 21ºC in spring. Native species of this state, such as silver catfish (Rhamdia quelen), traíra (Hoplias malabaricus), dorado (Salminus brasiliensis), pintado (Pimelodus maculatus), as well as carps (family Cyprinidae), are resistant to the low winter temperatures. These species have a lower growth rate in coldest months (winter/spring) but a good development in warmer months (summer/fall), reaching a satisfactory performance throughout the year. In the periods of more intense cold, mortality of some introduced species, such as surubim from Amazon Basin (Pseudoplatystoma sp.), pirapitinga (Piaractus brachypomus), pirarucu (Arapaimas gigas), pacu (Piaractus mesopotamicus), tambaqui (Colossoma macropomum) and Nile tilapia (Oreochromis niloticus) may occur. In addition, as most tropical species have a thermal range for growth and reproduction between 20 to 28ºC, some species may have poor development even in fall. Therefore, water temperature in this state should be considered in the choice of fish species to be cultivated.

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