scholarly journals Agronomic performance and economic viability of maize cultivars of open pollination

2021 ◽  
pp. 380-385
Author(s):  
Rovani Marcos Rossato ◽  
Diego Nicolau Follmann ◽  
Maurício Siqueira dos Santos ◽  
Pedro Casarotto Stefanello ◽  
João Pedro Morais Fagundes Rodrigues

The open pollination cultivars (VPA) of maize are an alternative of production for a small property, because it presents a good agronomic performance and low production cost, mainly due to the possibility of seed production with low cost. The objective of this research was to evaluate the agronomic performance and economic viability of open pollination cultivars of maize in a low-altitude site in the central region of the state of Rio Grande do Sul. The experiment was conducted during the 2018/2019 crop season, in the experimental area of the Federal University of Santa Maria-UFSM, in the municipality of Santa Maria-RS. The open pollination maize cultivars (SCS 154 Fortuna, SCS 155 Catarina, and SCS 156 Colorado) were used. The experiment consisted of three treatments and four replicates and the experimental design used was that of complete blocks at random. The open pollination cultivars presented an adequate agronomic performance in a low-altitude region in the state of Rio Grande do Sul, associated with the economic viability of the crop in the central region of the state.

2020 ◽  
Vol 19 (2) ◽  
pp. 117-123
Author(s):  
Fabiano Colet ◽  
Diego Nicolau Follmann ◽  
Astor Henrique Nied ◽  
Alessandro Dal'Col Lúcio ◽  
Thomas Newton Martin

The area occupied by crops has expanded in recent years in the central region of Rio Grande do Sul, Brazil and the search for alternative winter crops to integrate the productive system is relevant given the idleness of the areas at this time and the lower risk of frost losses that occur in most grain-producing regions. In this sense, the objective of this research was to evaluate the agronomic performance of eight canola hybrids (Hyola 61, Hyola 50, Hyola 433, Hyola 571CL, Hyola 575CL, Diamond, ALHT B4, and ALHT M6), cultivated in low altitude areas, in the Central region of Rio Grande do Sul (RS). The experiment was conducted in 2017, in Santa Maria, RS, using a randomized block design with four replicates. Canola hybrids show variability regarding the morphological components and grain production. The environmental condition and low altitude of the region of Santa Maria do not compromise the productive potential of the canola crop, obtaining grain productivity superior to the state and national averages. Therefore, canola crop can be inserted in the central region of Rio Grande do Sul if adequate agronomic management is performed. The cultivars Hyola 50, Hyola 571CL, Hyola 433, Hyola 575CL, Diamond, and Hyola 61 present the highest grain productivity.


1999 ◽  
Vol 26 (1) ◽  
pp. 3
Author(s):  
MARGOT GUERRA SOMMER ◽  
MIRIAM CAZZULO KLEPZIG ◽  
ROBERTO IANNUZZI ◽  
LAUREN SALLY ALVES

A Triassic taphoflora identified in the Central Region of the State of Rio Grande do Sul, southern Brazil, represents an important biostratigraphic stage in the paleofloristic succession of the Paraná Basin. This megafloristic association is composed of compressed leaves, fronds and seeds of a “Dicroidium Flora” and shows a predominance of the Dicroidium genus, with several species, and other important taxa like Neocalamites sp, Cladophlebis sp, Tetraptilon aff, heteromerum, Ginkgoites Antarctica, Sphenobaiera sp, Podozamites sp, Nilssonia sp, Pteruchus sp and Carpolithus sp. Taking into account the stratigraphical distribution of different species of the Dicroidium genus, a biostratigraphic framework was established. The biostratigraphical position of this Triassic flora was established by comparison with Triassic floras from Argentina, South Africa and Australasia. Considering that the recognition of this Dicroidium Flora was based on limited outcrops belonging to one lithostratiphic level (Santa Maria Formation – Passo das Tropas Facies), it was impossible to establish a formal biostratigraphic zonation. Instead, at present time, an informal floristic interval, named “Dicroidium odontopteroides Flora” is proposed (Late Anisian to Late Ladinian, Middle Triassic).


Check List ◽  
2015 ◽  
Vol 11 (1) ◽  
pp. 1556 ◽  
Author(s):  
Conrado Mario da Rosa ◽  
Arthur Diesel Abegg ◽  
Leandro Malta Borges ◽  
Gabriela S. S Bitencourt ◽  
Rocco Alfredo Di Mare

The Brazilian scorpion Tityus serrulatus is recorded for the first time in the central region of Rio Grande do Sul, thus filling a gap of 567 km in its distribution. A specimen of the scorpion was collected in the urban area of the municipality of Santa Maria (29°43′51.31″ S, 053°48′5.74″ W) on 31 June 2014. A map was generated with the points of occurrence of the species in the state.


1986 ◽  
Vol 8 (8) ◽  
pp. 53
Author(s):  
Maria Da Graça Barros Sartori

Urbanization causes changes in the local climate by altering the atmosphere of a city and creating the urban climate. Attempting to verify the existence of urban climate in Santa Maria, climatic analysis was made of temperature, wind and relative humidity of data gathered in the field as well as from the meteorological station, in relaction to the regional atmospheric circulation analysis. The results of this study and samples from national and international finding, together with the local analysis of geoecological and geourban components, help in presenting a simulating model of the urban climate of Santa Maria located in the center of the State of Rio Grande do Sul, Brazil.


Irriga ◽  
2018 ◽  
Vol 23 (4) ◽  
pp. 679-696
Author(s):  
Ricardo Benetti Rosso ◽  
Marcia Xavier Peiter ◽  
Adroaldo Dias Robaina ◽  
Rogério Ricalde Torres ◽  
Jardel Henrique Kirchner

USO DE CAMALHÕES DE BASE LARGA PARA A VIABILIZAÇÃO DO CULTIVO DE SOJA EM TERRAS BAIXAS     RICARDO BENETTI ROSSO1; MARCIA XAVIER PEITER2; ADROALDO DIAS ROBAINA3; ROGÉRIO RICALDE TORRES4 E JARDEL HENRIQUE KIRCHNER5   1Eng. Agrônomo, Doutor, Professor do Instituto Federal Catarinense, Campus Concórdia, SC, Brasil, CEP: 89703-720, [email protected]. 2Eng. Agrônoma, Doutora, Professora Associada do Departamento de Engenharia Rural, UFSM, Santa Maria, RS, Brasil, CEP: 97195-000, [email protected]. 3Eng. Agrônomo, Doutor, Professor Titular do Departamento de Engenharia Rural, UFSM, Santa Maria, RS, Brasil, CEP: 97195-000, [email protected]. 4Eng. Agrônomo, Doutor, Professor do Instituto Federal de Educação, Ciência e Tecnologia do Rio Grande do Sul, Vacaria, RS, Brasil, CEP: 95219-899, [email protected] 5Eng. Agrônomo, Doutor, Professor do Instituto Federal de Educação, Ciência e Tecnologia do Rio Grande do Sul, Ibirubá, RS, Brasil, CEP: 98200-000, [email protected].     1 RESUMO   O estado do Rio Grande do Sul possui extensas áreas de terras baixas que são predominantemente ocupadas pela orizicultura que nos últimos anos vem enfrentando sérios problemas. A alternativa encontrada foi o cultivo de soja nestas áreas. Porém, estas áreas apresentam restrições físicas do solo, como por exemplo a má drenagem, que acarreta na elevação do nível freático próximo a superfície. Neste sentido, foi realizado um estudo com objetivo de avaliar a utilização de técnicas de drenagem, para viabilizar o cultivo de soja, através do rebaixamento do nível freático. Estas técnicas de drenagem são compostas pelos camalhões de base larga de 22,5; 15 e 7,5 m e a drenagem superficial. Como parâmetros de avaliação da eficiência no rebaixamento do nível freático foram utilizados os índices SEW30 SCmod e IDS, e também a produtividade e os componentes de produção da soja. Os resultados, demonstraram a eficiência do camalhão de base larga no rebaixamento do nível freático em comparação a drenagem superficial.  Assim recomenda-se a utilização de camalhões de base larga de 7,5 e 15 m para o cultivo de soja em terras baixas.   Palavras chave; drenagem, SEW30, nível freático, várzea.   ROSSO R. B.; PEITER M. X.; ROBAINA A. D.; TORRES R.R.; KIRCHNER J. H. USE OF BROAD BED FURROW FOR FEASIBILITY OF SOYBEAN CULTIVATION IN LOWLANDS     2 ABSTRACT   The state of Rio Grande do Sul has extensive lowland areas predominantly occupied by rice cultivation, which in recent years has been experiencing serious problems. The alternative found was to implement soybean cultivation in these areas. However, they present physical soil restrictions, such as poor drainage, which leads to elevation of the water table near the surface. In this sense, a study was carried out with the objective of evaluating the use of drainage techniques to enable soybean cultivation by lowering the water table. The drainage techniques were composed of a broad bed ridge of 22.5, 15 and 7.5 meters and surface drainage. SEW30, SCmod and IDS indices, as well the productivity and components of soybean production, were used as parameters for the evaluation of efficiency in lowering the water table. Among the broad bed ridges, 7.5 m wide and 15 m wide base were the most successful in the two harvests. Thus, the use of 7.5 and 15 m wide broad bed for cultivation of soybeans in lowlands is recommended.   Keywords: drainage, SEW30, water table, lowland.


1908 ◽  
Vol 5 (6) ◽  
pp. 251-255 ◽  
Author(s):  
Arthur Smith Woodward

A few fossil reptilian bones discovered by Dr. Jango Fischer in 1902 at Santa Maria da Bocca do Monte (Serrito) in the Rio Grande do Sul, which have been submitted to me by Dr. H. von Ihering (San Paulo Museum), are of much interest. They not only appear to determine the geological age of the formation from which they were obtained, but also foreshadow the discovery of an early Mesozoic South American land fauna, which has long been expected.


1986 ◽  
Vol 8 (8) ◽  
pp. 139
Author(s):  
Ilca Marion Knewitz Bossemeyer ◽  
Maria Lacy Cezimbra Weis

This paper deals with the finding of Leporinus lacustres Campos, 1945 in the state of Rio Grande do Sul. The samples studied were collected in the Ibicui – Mirim (1982-1983) and Santa Maria (1984-1985) rivers and presented some morphometric and meristic differences when compared to descriptions made by other authors.


1981 ◽  
Vol 3 (3) ◽  
pp. 65
Author(s):  
Maria Lacy Cezimbra Weis ◽  
Ilca Marion Knewitz Bossemeyer ◽  
Horst Oscar Lippold

Among the specimens of the Cichlidae family collected in the central region of the State of Rio Grande do Sul (Brazil), the initial studies were done in genera represented by orbicular forms, which comprise: Aequidens, Cichlaurus and Geophagus. Of these genera, four species were found in different proportions: Aequidens portalegrensis, Cichlaurus facetus, Geophagus brasiliensis and Geophagus gymnogenys.


2021 ◽  
Vol 43 ◽  
pp. e23
Author(s):  
Igor Wassiljew Moia ◽  
Guilherme Moreira da Silva ◽  
Liliana Essi

A floristic survey of the Cactaceae family was carried out in the municipality of Santa Maria, Brazil, which is localized in the central region of Rio Grande do Sul state. The study was conducted between August 2017 and November 2018, during which time 14 species were recorded. Five species are on the endangered species list of Rio Grande do Sul. The threatened species are Echinopsis oxygona (Link) Zucc. Ex. Pfeiff. Otto, Parodia horstii (F. Ritter) N.P. Taylor, Parodia glaucina (F. Ritter), Hofacker M. Machado, Parodia linkii (Lehm.), R. Kiesling, and Parodia ottonis (Lehm.) N. P. Taylor. This paper presents a complete list of the species with reference to conservation status.


Author(s):  
Marines Batalha Moreno Kirinus ◽  
Roberto Pedroso de Oliveira ◽  
Pricila Santos da Silva ◽  
Caroline Farias Barreto ◽  
Marcelo Barbosa Malgarim ◽  
...  

Abstract: The objective of this work was to evaluate the agronomic performance of 'Valência' sweet orange (Citrus sinensis) tree, in combination with 13 rootstocks cultivated in soil and climate conditions of the Brazilian state of Rio Grande do Sul. The following agronomic variables were evaluated: scion height and volume, plant production, production efficiency, productivity, fruit diameter, fruit mass, peel mass, juice yield, soluble solids content, titratable acidity, soluble solids:acidity ratio, ascorbic acid, peel color, antioxidant capacity, and phenolic compounds. A randomized complete block experimental design was used, with three replicates and nine plants per plot, in a two-factor arrangement (13 rootstocks and the 2015 and 2016 harvests). The following rootstocks stood out: TSKC × TRDP-023 for its juice yield (54.0 and 51.7%), soluble solids:acidity ratio (8.66 and 6.99), and ascorbic acid (49.3 and 51 mg 100 g-1); and the citrandarin 'San Diego', for its higher phenolic-compound content (106.4 and 74.9 100 g-1 gallic acid), coloration (76.2 and 75.9 hº), and ascorbic acid (42.2 and 44.7 mg 100 g-1). The TSKC × TRDP-026 and TSKC × CTQT1434-004 rootstocks induce canopy formation and productive precocity in 'Valência' orange trees grown in the southern region of the state of Rio Grande do Sul state, in the first few years of growth.


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