scholarly journals DESEMPENHO AGRONÔMICO DA CULTURA DA CANOLA EM DIFERENTES ARRANJOS ESPACIAIS DE SEMEADURA NO CERRADO DO PLANALTO CENTRAL

2020 ◽  
Vol 35 (2) ◽  
pp. 158-169
Author(s):  
Arthur Gabriel Caldas Lopes ◽  
Tiago Pereira da Silva Correia ◽  
Karen Pereira da Silva Carneiro ◽  
Alexandre Pinto Ferreira de Almeida Faria ◽  
Francisco Faggion
Keyword(s):  
Brassica Napus ◽  
Experimental Design ◽  
Agronomic Performance ◽  
Brassica Napus L ◽  
Central Plateau ◽  
Tukey Test ◽  
Grain Productivity ◽  
Line Spacing ◽  
The University ◽  
E Mail

DESEMPENHO AGRONÔMICO DA CULTURA DA CANOLA EM DIFERENTES ARRANJOS ESPACIAIS DE SEMEADURA NO CERRADO DO PLANALTO CENTRAL   ARTHUR GABRIEL CALDAS LOPES1, TIAGO PEREIRA DA SILVA CORREIA2, KAREN PEREIRA DA SILVA CARNEIRO3, ALEXANDRE PINTO FERREIRA DE ALMEIDA FARIA4, FRANCISCO FAGGION5.     1Faculdade de Agronomia e Medicina Veterinária, Universidade de Brasília, Campus Universitário Darcy Ribeiro ICC – Asa Norte, Cep: 70910-900, Brasília/DF, Brasil. E-mail: [email protected] 2Faculdade de Agronomia e Medicina Veterinária, Universidade de Brasília, Campus Universitário Darcy Ribeiro ICC – Asa Norte, Cep: 70910-900, Brasília/DF, Brasil. E-mail: [email protected] 3Faculdade de Agronomia e Medicina Veterinária, Universidade de Brasília, Campus Universitário Darcy Ribeiro ICC – Asa Norte, Cep: 70910-900, Brasília/DF, Brasil. E-mail: [email protected] 4Faculdade de Agronomia e Medicina Veterinária, Universidade de Brasília, Campus Universitário Darcy Ribeiro ICC – Asa Norte, Cep: 70910-900, Brasília/DF, Brasil. E-mail: [email protected] 5Faculdade de Agronomia e Medicina Veterinária, Universidade de Brasília, Campus Universitário Darcy Ribeiro ICC – Asa Norte, Cep: 70910-900, Brasília/DF, Brasil. E-mail: [email protected] 6O presente artigo é baseado no trabalho de conclusão de curso do autor.   RESUMO: Embora nas regiões sul e sudeste do Brasil já existam e sejam conhecidos resultados de pesquisas com a cultura da canola, no cerrado do planalto central ainda são inexistentes. O objetivo do trabalho foi avaliar a responsividade das características agronômicas e produtividade de grãos de canola em diferentes arranjos espaciais de semeadura no cerrado do planalto central brasileiro. O experimento foi realizado na Fazenda Água Limpa, da Universidade de Brasília, em Brasília – DF. O delineamento experimental foi em blocos casualizados, sendo os tratamentos formados por dois espaçamentos entre linhas (0,25 e 0,5 m) e três densidades de semeadura (25, 35 e 45 plantas por metro), com três repetições por bloco. As sementes utilizadas foram do híbrido Hyola 575CL, semeadas em Latossolo Vermelho Amarelo. Foram realizadas avaliações de altura de plantas (AP), diâmetro de haste (DH), síliquas por planta (SP), massa de mil grãos (MMG) e produtividade de grãos. Os dados foram submetidos à análise de variância e as médias comparadas pelo teste de Tukey (P ≥0,05). Os resultados indicaram maior AP para espaçamento de 0,5 m entre linhas e densidade de 45 plantas por metro. Maior DH para espaçamento de 0,5 m entre linhas e densidade de 35 plantas por metro. Maior SP ocorre com espaçamento entre linhas de 0,5 m. A produtividade de grãos é maior com densidade de 35 plantas por metro. A MMG não difere em função dos fatores estudados.   Palavras-chave: Brassica napus L., espaçamento, densidade, produtividade, síliquas.   AGRONOMIC PERFORMANCE OF CANOLA CULTURE IN DIFFERENT SPACIAL ARRANGEMENTS OF SOWING IN CERRADO OF THE CENTRAL PLATEAU   ABSTRACT: Although in southern and southeastern regions of Brazil, research results with canola culture already exist and are known; in the central plateau savannah they are still nonexistent. The objective of the work was to evaluate the responsiveness of agronomic characteristics and productivity of canola grains in different sowing spatial arrangements in Cerrado of central Brazilian plateau. The experiment was carried out at Fazenda Água Limpa, at the University of Brasília, in Brasília - DF. The experimental design was in randomized blocks, with treatments formed by two spacing between lines (0.25 and 0.5 m) and three sowing densities (25, 35 and 45 plants per meter), with three replications per block. The used seeds were from the Hyola 575CL hybrid, sown in Oxisol. Plant height (AP), stem diameter (DH), silica per plant (SP), thousand grain mass (MMG) and grain yield evaluations were carried out. The data were subjected to analysis of variance and the means compared by the Tukey test (P ≥ 0.05). The results indicated a higher AP for 0.5 m spacing between lines and density of 45 plants per meter. Higher DH for 0.5 m spacing between lines and density of 35 plants per meter. Higher SP occurs with 0.5 m line spacing. Grain productivity is higher with a density of 35 plants per meter. MMG does not differ due to the factors studied.   Keywords: Brassica napus L., spacing, density, productivity, silica.

Development of an agronomically superior blackleg resistant canola cultivar in Brassica napus L. using doubled haploidy

1995 ◽  
Vol 75 (2) ◽  
pp. 437-439 ◽  
Author(s):  
G. R. Stringam ◽  
V. K. Bansal ◽  
M. R. Thiagarajah ◽  
D. F. Degenhardt ◽  
J. P. Tewari
Keyword(s):  
Brassica Napus ◽  
Doubled Haploid ◽  
Leptosphaeria Maculans ◽  
Resistance Breeding ◽  
Breeding Method ◽  
Brassica Napus L ◽  
Breeding Lines ◽  
University Of Alberta ◽  
Blackleg Resistance ◽  
The University

The doubled haploid breeding method and greenhouse screening using cotyledon bio-assay were successfully applied to transfer blackleg resistance from the Australian cultivar Maluka (Brassicas napus), into susceptible advanced B. napus lines from the University of Alberta. This approach for blackleg resistance breeding was effective and efficient as several superior blackleg resistant breeding lines were identified within 4 yr from the initial cross. One of these lines (91–21864NA) was entered in the 1993 trials of the Western Canada Canola/Rapeseed Recommending Committee. Key words: Blackleg resistance, Leptosphaeria maculans, doubled haploid, Brassica napus

Assessment of Genetic Diversity of 62 F4 Population of Rapeseed (Brassica Napus L.) Through Multivariate Analysis

2021 ◽  
Vol 19 (1) ◽  
pp. 15-25
Author(s):  
S Sultana ◽  
F Mahmud ◽  
M Asaduzzaman
Keyword(s):  
Genetic Diversity ◽  
Brassica Napus ◽  
Multivariate Analyses ◽  
Wide Spectrum ◽  
Block Design ◽  
Agronomic Performance ◽  
Brassica Napus L ◽  
Randomized Complete Block Design ◽  
Cluster Distance ◽  
Segregating Population

Rapeseed (Brassica napus L.) is the best one in respect of oil production. It is the order of the day to take better steps for production and quality improvement of our local cultivars. Broadening of genetic diversity in spring oilseed Brassica napus L. (AACC, 2n = 38), canola is important for continued improvement of this crop. Sixty-two genotypes in F4 generation of Brassica napus L. were evaluated to assess genetic diversity based on randomized complete block design with three replications at the experimental field of Sher-e-Bangla Agricultural University, Dhaka. Different Multivariate analyses were performed to classify 62 genotypes. On the basis of cluster analysis, all the genotypes were classified in five clusters. The cluster IV comprised the maximum number (19) of genotypes followed by same in cluster II (18). The cluster I and V comprised 10 and 9 genotypes respectively. The lowest number of genotypes was present in cluster II. The highest inter-cluster distance (10.309) was observed between the cluster I and IV and the genotypes of these clusters involved in hybridization may produce a wide spectrum of segregating population. The lowest inter-cluster distance (3.513) was observed between the cluster III and IV. The inter-cluster distances were larger than the intra-cluster distances. Considering cluster distance, inter genotypic distance and other agronomic performance G3, G4, G24, G35 and G51 might be suggested for future breeding program. SAARC J. Agric., 19(1): 15-25 (2021)

WESTAR SUMMER RAPE

1987 ◽  
Vol 67 (2) ◽  
pp. 491-493 ◽  
Author(s):  
A. J. KLASSEN ◽  
R. K. DOWNEY ◽  
J. J. CAPCARA
Keyword(s):  
Brassica Napus ◽  
Seed Yield ◽  
Oil Content ◽  
Western Canada ◽  
Agronomic Performance ◽  
Brassica Napus L ◽  
Early Maturity ◽  
Cultivar Description ◽  
Canola Quality ◽  
High Seed Yield

Westar summer rape (Brassica napus L.), licensed in 1982, is a canola-quality cultivar that combines high seed yield with high oil content and early maturity. Westar is adapted to the B. napus growing areas of western Canada and because of its superior agronomic performance has replaced the older cultivars Regent, Andor and Altex.Key words: Rape (summer), cultivar description

Assessment of agronomic performance and heterosis for agronomic traits in hybrid high erucic acid rapeseed (HEAR)

2009 ◽  
Vol 89 (2) ◽  
pp. 227-237 ◽  
Author(s):  
R. D. Cuthbert ◽  
G. Crow ◽  
P. B. E. McVetty
Keyword(s):  
Brassica Napus ◽  
Erucic Acid ◽  
Seed Yield ◽  
Agronomic Traits ◽  
Brassica Napus L ◽  
High Erucic Acid ◽  
High Erucic Acid Rapeseed ◽  
Days To Maturity ◽  
The University ◽  
Seed Yields

Twelve genetically diverse and geographically distinct high erucic acid rapeseed (HEAR) Brassica napus L. cultivars/lines were selected and crossed by hand emasculation in a topcross design to produce 45 F1 hybrid combinations. Seven of the twelve parents were HEAR cultivars/lines developed by the University of Manitoba (UM) and the remaining five parents were proprietary European (EU) HEAR cultivars/lines. Adequate seed was produced to evaluate the hybrids and parents in replicated yield trials in six environments in Manitoba during 2004 and 2005. Vigor, days to first flower, days to maturity, lodging, plant height, and seed yield were assessed. The hybrids were generally more vigorous, taller and more lodging resistant than their parents with similar days to first flower and days to maturity as their earlier parents. The best hybrids in this study displayed high parent heterosis for seed yield of up to 143% and commercial heterosis for seed yield of up to 99%. These hybrids were from the most genetically diverse UM × EU crosses. HEAR hybrids appear very promising approach to increase seed yields in this crop. Key words: Brassica napus L., HEAR, heterosis, hybrids, genetic diversity

scholarly journals Agronomic performance and physicochemical characteristics of onion genotypes under different spacing in the humid Amazonian tropics

2021 ◽  
Vol 9 (4) ◽  
pp. 331-349
Author(s):  
Luiz Carlos Piacentini ◽  
Bruna Corrêa Moreira ◽  
Cláudia Barbosa Cordeiro ◽  
Augusto Uchoa de Andrade ◽  
Marcos Ribeiro da Silva Vieira ◽  
...  
Keyword(s):  
Experimental Design ◽  
Germination Rate ◽  
Physicochemical Characteristics ◽  
Soluble Solids ◽  
Average Weight ◽  
Agronomic Performance ◽  
Significant Difference ◽  
Line Spacing ◽  
Southwest Region ◽  
Two Stages

The Southwest region of Pará state, Brazil, imports 100% of all onion consumed from other regions of the country, which generates market dependence and raises the product's costs. The present study investigated parameters related to germination, agronomic performance and postharvest characteristics of five onion cultivars at different planting densities. The experiment was conducted in two stages. In the first, in a greenhouse, the germination kinetics was evaluated. In the second, in the field, the seedlings were transplanted into beds. The experimental design was in complete randomized blocks in a 5 x 3 factorial scheme with three replications. The treatments consisted of the combination of five cultivars (Mata Hari, Dulciana, Cimarron, NUN 1205-F1 and Vale Ouro IPA 11) and three line spacing (20, 30 and 40 cm) 8 cm between plants. As for the germination rate (GR), the results allowed to highlight the cvs. Cimarron and Vale Ouro IPA 11 with an 80.55% and 77.77% of GR, respectively. There was a significant difference for total bulb productivity, highlighting Vale Ouro IPA 11 in the 8 x 20 cm spacing. For the bulb diameter, cv. Vale Ouro IPA 11 obtained the best results in all classes. In the average weight of the bulbs, cv. Vale Ouro IPA 11 in the 8 x 40 cm spacing was the best treatment with 60.77g. As for total soluble solids, cv. Vale Ouro IPA 11 presented °Brix higher than the others, being significant at 1%. These results demonstrate that it is possible to produce quality onions in the Southwest region of Pará, which would reduce prices, since all commercialized onions come from regions outside the state.

scholarly journals Upland rice agronomic performance in response to different doses and sources of nitrogen

2020 ◽  
Vol 16 (2) ◽  
pp. 96-100
Author(s):  
Tácio Peres da Silva ◽  
Douglas Goulart Castro ◽  
Laís Moretti Tomé ◽  
Marco Renan Félix ◽  
Antônio Rosário Neto ◽  
...  
Keyword(s):  
Experimental Design ◽  
Grain Yield ◽  
Nitrogen Fertilization ◽  
Upland Rice ◽  
Block Design ◽  
Agronomic Performance ◽  
Nitrogen Application ◽  
Randomized Complete Block Design ◽  
The University ◽  
Different Doses

The aim of the present study was to evaluate the response of different doses and sources of nitrogen (N) on agronomic characteristics in upland riceas well astheclimaticand environmentalinfluence on nitrogen fertilization results. Theexperiments were conducted in the University of Lavras, during 2015/2016 and 2016/2017 crop seasons, the plots consisted of 4 lines of 3 linear meters, with spacing among rows of 35 cm and a useful plot of 4.2 m2. The experimental design was a randomized complete block design with three replications in a 4x4x 2factorial design. The factor doseconsisted in 0, 50,100 e 200 kg ha-1N and the factor sourcesconsisted in ammonium nitrate, ammonium sulphate, urea and polycote, totaling 16 treatments. The characteristics evaluatedwere plant height, grain yield, grain chalkness, 1000 grainsweight andyield. It was concluded that the addiction of doses and Nsources didnot change the agronomic performanceof the upland rice crop. There is an influence of the environment on the responses of plants to nitrogen application, being observed different results in different cropseasons.

AGRONOMIC PERFORMANCE OF TRIAZINE-RESISTANT SINGLE-CROSS HYBRID OILSEED RAPE (Brassica napus L.)

1985 ◽  
Vol 65 (4) ◽  
pp. 889-892 ◽  
Author(s):  
IAN GRANT ◽  
WALLACE D. BEVERSDORF
Keyword(s):  
Brassica Napus ◽  
Plant Height ◽  
Oilseed Rape ◽  
Agronomic Performance ◽  
Brassica Napus L ◽  
Lodging Resistance ◽  
Physiological Maturity ◽  
Triazine Resistance ◽  
Flowering Date ◽  
Single Cross

The agronomic performance of eight triazine-resistant single-cross oilseed rape (B. napus L.) hybrids was evaluated. The yield of most of the hybrids was significantly greater than Atr-Regent; some of the hybirds demonstrated mid-parent heterosis, but none of the eight exhibited high-parent heterosis. In most cases the hybrids were intermediate to the parents for flowering date, plant height, lodging resistance, physiological maturity, percent oil and percent protein.Key words: Brassica napus L., oilseed rape, F1 hybrid, triazine resistance

Comparison of the performance of bromoxynil-resistant and susceptible near-isogenic populations of oilseed rape

2001 ◽  
Vol 81 (3) ◽  
pp. 367-372 ◽  
Author(s):  
Janice L. Cuthbert ◽  
Peter B. E. McVetty ◽  
Georges Freyssinet ◽  
Martine Freyssinet
Keyword(s):  
Brassica Napus ◽  
Oilseed Rape ◽  
Herbicide Resistance ◽  
Negative Effects ◽  
Brassica Napus L ◽  
Comparative Performance ◽  
Positive Effects ◽  
Biological Cost ◽  
Transgenic Oilseed Rape ◽  
The University

Bromoxynil herbicide resistance is the newest type of broad-spectrum, non-selective herbicide resistance to be introduced into oilseed rape (Brassica napus L.). This herbicide resistance is conferred by a single transgene (the oxy gene), taken from a soil bacterium, which confers the ability to metabolize hydroxybenzonitrile herbicides such as bromoxynil. The level of resistance to bromoxynil herbicide in oilseed rape is high, but it is not known whether there are any performance changes associated with the oxy transgene or with the derived herbicide resistance. To determine if there are changes in performance related to the oxy transgene, or the derived herbicide resistance, two near-isogenic transgenic bromoxynil-resistant populations, with two different forms of the oxy gene, Westar 235 and Westar 237, were developed at the University of Manitoba, grown in the field in Manitoba for several years and evaluated for comparative performance. Westar 235 and Westar 237 near-isogenic populations, either sprayed with bromoxynil at 280 g a.i. ha–1 or left unsprayed, were compared with the non-transgenic near-isogenic population cultivar, Westar, in Winnipeg, Carman, and Portage la Prairie from 1994 to 1997. There were no consistent differences in the performance of the sprayed or unsprayed transgenic near-isogenic populations in comparison to Westar for any trait. The few significant and minimal differences that were found were evenly divided between positive effects and negative effects of the oxy gene and derived herbicide resistance. There were no significant effects of spraying bromoxynil herbicide detected in paired comparisons of Westar 235 and Westar 237 sprayed versus Westar 235 and Westar 237 unsprayed, respectively. The effects of the oxy transgenes and the effects of bromoxynil spraying of herbicide-resistant lines were negligible, indicating that there is little, if any biological cost associated with the bromoxynil resistance transgenes or related herbicide resistance. Key words: Transgenic oilseed rape, Brassica napus, biological cost

scholarly journals Herbicide management in glyphosate and sulfonylurea-tolerant soybeans

2020 ◽  
Vol 87 ◽  
Author(s):  
André Felipe Moreira Silva ◽  
Alfredo Junior Paiola Albrecht ◽  
Eduardo Seity Furlan Kashivaqui ◽  
Gustavo Soares da Silva ◽  
Ana Ligia Giraldeli ◽  
...  
Keyword(s):  
Experimental Design ◽  
Weed Control ◽  
Analysis Of Variance ◽  
Sao Paulo ◽  
Soybean Cultivar ◽  
Agronomic Performance ◽  
Paulo State ◽  
Tukey Test ◽  
Crop Injury ◽  
Herbicide Management

ABSTRACT: There is little information on the efficacy and selectivity of sulfonylureas, isolated and in association with glyphosate, in glyphosate and sulfonylurea-tolerant soybeans. Thus, the present study aims to evaluate the efficacy of weed control and selectivity of sulfonylureas, isolated and in association with glyphosate, at post-emergence (V4) of RR2/STS soybean. The experiments were conducted in the in areas located in Piracicaba City, São Paulo State (SP), Brazil (experiment I) and Palotina City, Paraná State (PR), Brazil (experiment II). Treatments were composed of application of the herbicides sulfometuron, chlorimuron, halosulfuron, ethoxysulfuron and glyphosate, isolated and in association, in the BMX Garra RR2/STS cultivar. Experiment I was conducted focusing on the evaluation of the efficacy of weed control; whereas experiment II focused mainly on the evaluation of herbicide selectivity. The experimental design was the randomized complete block, with four replications. Crop injury, weed control, and variables related to agronomic performance were evaluated. Data were submitted to analysis of variance, and the means of the treatments were compared with the Tukey test. Sulfonylureas in association with glyphosate were effective in weed control and selective for the BMX Garra RR2/STS soybean cultivar. The sulfometuron + chlorimuron + glyphosate association presented phytotoxic potential for the BMX Garra RR2/STS cultivar.

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