Critical Photoperiod Measurement of Soybean Genotypes in Different Maturity Groups

Crop Science ◽  
2019 ◽  
Vol 59 (5) ◽  
pp. 2055-2061 ◽  
Author(s):  
Wenying Yang ◽  
Tingting Wu ◽  
Xinyue Zhang ◽  
Wenwen Song ◽  
Cailong Xu ◽  
...  
Keyword(s):  
Critical Photoperiod ◽  
Soybean Genotypes ◽  
Maturity Groups

scholarly journals Sowing date and maturity groups on the economic feasibility of soybean-maize double summer crop system

2021 ◽  
Vol 59 (4) ◽  
Author(s):  
Karine Fuschter Oligini ◽  
Vanderson Vieira Batista ◽  
Elisa Souza Lemes ◽  
Érik Januário da Silva ◽  
Paulo Fernando Adami
Keyword(s):  
Sowing Date ◽  
Economic Feasibility ◽  
Maturity Group ◽  
Gross Margin ◽  
Growing Seasons ◽  
Operating Profit ◽  
Soybean Genotypes ◽  
Financial Balance ◽  
Maturity Groups ◽  
Summer Crop

Abstract: The success of soybean-maize double summer crop is very dependent on the sowing date and relative maturity group of cultivars. This study aimed to evaluate the economic feasibility of the adoption of soybean-maize double cropping under different sowing periods and soybean maturity groups. The production data used were obtained from two summer growing seasons (2016/17 and 2017/18) in an experiment carried out at Dois Vizinhos-PR, Brazil. The economic feasibility of each treatment was evaluated through the indicators of gross revenue, gross margin, operating profit, and profitability index. Soybean-maize succession is viable and presents positive profitability. Soybean establishment on October 15th makes it economically unfeasible to sow maize (outside the zoning) as a 2nd summer crop. Soybean maturity groups from 5.1 to 5.3, when sown on October 1st allow profitability and better financial balance, being this combination the most suitable for a double summer crop. Soybean genotypes with maturity group 6.0 are an option for sowing in the middle of September, being the most lucrative and efficient arrangement, providing maize sowing in the middle of February, within the agroclimatic zoning of the region.

Evaluation of Vegetable Soybean Genotypes for Resistance to Corn Earworm (Lepidoptera: Noctuidae)

1997 ◽  
Vol 32 (1) ◽  
pp. 25-36 ◽  
Author(s):  
Mark E. Kraemer ◽  
Muddappa Rangappa ◽  
Ali I. Mohamed
Keyword(s):  
Helicoverpa Zea ◽  
Sugar Content ◽  
Petri Dish ◽  
Dry Weight ◽  
Corn Earworm ◽  
Soybean Genotypes ◽  
Percent Mortality ◽  
Glycine Max L ◽  
Lepidoptera Noctuidae ◽  
Maturity Groups

Petri dish bioassays were used to evaluate terminal foliage from 47 field-grown genotypes of vegetable-type soybean, Glycine max (L.) Merrill, from maturity groups III through VIII, for resistance to corn earworm, Helicoverpa zea (Boddie), in 1993 and 1994. Larvae reared on “Sato”, IAC 100, V89-1301, V89-1563, and V88-100 had low mean weights, not significantly different from resistant controls. However, larval weights ranged from moderate to high on most vegetable-type soybeans. The most susceptible genotypes were “Geulph”, PI 561291, and “Rokusun”, followed by “Kanrich”, “Kura”, “Camp”, “Wolverine”, G2246, G4032, “Kim”, “Hahto”, PI 561294, N2962, and D71-V89. Mortality averaged 2.9% in 1993 and 13.5% in 1994, but was not generally useful in evaluating resistance within maturity groups. High percent mortality and low weights of larvae reared on both resistant and susceptible genotypes in maturity group VII/VIII in 1994 may have been related to the use of insect-damaged foliage. Soluble leaf sugar was determined in 1994 samples and ranged from 0.50% (PI 416868-B) to 1.04% (PI 561291) of dry weight. A small but significant positive correlation (r = 0.20, P = 0.009) was found between sugar content and larval weight in maturity groups III through VI. Exceptional low larval weights in maturity groups VII and VIII were not related to leaf sugar content.

scholarly journals Productive potential and seed quality of soybean genotypes with different maturity groups

2019 ◽  
pp. 1155-1161
Author(s):  
Jonas Estevon Cover ◽  
Cibele Divino Aguiar ◽  
Antônio Veimar da Silva ◽  
Carla Michelle da Silva ◽  
Fabio Mielezrski
Keyword(s):  
Plant Height ◽  
Seed Weight ◽  
Germination Speed ◽  
Productive Potential ◽  
Soybean Genotypes ◽  
Pod Length ◽  
Pod Number ◽  
Thousand Seed Weight ◽  
Maturity Groups

Soybean has economically stood out worldwide. In MATOPIBA region of Brazil (Maranhão, Tocantins, Paiuí e Bahia) it is the most economically important crop with participation in the country’s GDP growth. Due to this great growth economic and the incentive to the production of this oilseed, this study aimed to understand the behavior and physiological quality of soybean genotypes and to determine the productive potential of soybean seeds of different cultivars in the Cerrado of the State of Piauí. To this end, an experiment was carried out at Celeiro Farm, located in Serra do Quilombo, municipality of Monte Alegre do Piauí. Sowing followed the usual standards and was carried out on January 10, 2016. The experiment was set up in a randomized complete block design with four replicates. The treatments consisted of five cultivars of INTACTA RR2 PRO soybean, with different maturity groups: C1: MG 8.6, C2: MG 8.3, C3: MG 8.6.1, C4: MG 7.9 and C5: MG 8.5. The analyzed variables were: plant height, number of nodes, internode length, pod length, number of grains per pod, number of grains per plant, one thousand seed weight, productivity, first germination count, germination, seedling length, germination speed index and seedling dry mass. The results indicated that the best cultivars were: C5:TMG 2185 IPRO for plant height, internode length and pod length, and C4: BÔNUS IPRO for number of grains per pod, number of grains per plant, one thousand seed weight, and productivity. Considering the first count, germination, and germination speed index, the best cultivar was C5.

scholarly journals Resistance to Dichelops melacanthus (Hemiptera: Pentatomidae) in soybean genotypes of different maturity groups

Bragantia ◽  
2017 ◽  
Vol 76 (2) ◽  
pp. 257-265 ◽  
Author(s):  
Vinícius Fernandes Canassa ◽  
Edson Luiz Lopes Baldin ◽  
José Paulo Franco Bentivenha ◽  
Luiz Eduardo da Rocha Pannuti ◽  
André Luiz Lourenção
Keyword(s):  
Soybean Genotypes ◽  
Maturity Groups

ANALYSIS OF AGRONOMIC CHARACTERS FOR AN ELEVEN-PARENT DIALLEL OF EARLY-MATURING SOYBEAN GENOTYPES IN EASTERN CANADA

1990 ◽  
Vol 70 (1) ◽  
pp. 107-115 ◽  
Author(s):  
F. LOISELLE ◽  
C. A. ST-PIERRE ◽  
H. D. VOLDENG ◽  
P. TURCOTTE
Keyword(s):  
Glycine Max ◽  
Seed Yield ◽  
Additive Effects ◽  
Agronomic Characters ◽  
Eastern Canada ◽  
Northern Latitudes ◽  
Early Maturing ◽  
Soybean Genotypes ◽  
Glycine Max L ◽  
Maturity Groups

Information on the genetic behavior of early-maturing soybeans (Glycine max (L.) Merr.) in northern latitudes is important for the formulation of appropriate selection schemes. The Gardner-Eberhart diallel model was used to study genetic effects and combining abilities of 11 early-maturing genotypes (maturity Groups 00 and 000) of soybean grown in Quebec and eastern Ontario. Agronomic characters were measured on spaced F1 plants at one site, and on F2 populations in replicated row plots at three sites. Cultivar (additive) effects were predominant for all characters. Three of eleven lines had positive but unstable varietal parameters for seed yield. Average heterosis was significant for seed yield and plant height at every location. Contrary to other reports, significant negative heterosis for oil content was observed at two locations. Varietal and specific heterosis were significant for most characters.Key words: Soybean, Glycine max (L.) Merr., diallel, Gardner-Eberhart, yield, oil, protein

scholarly journals Key locations for soybean genotype assessment in Central Brazil

2009 ◽  
Vol 44 (5) ◽  
pp. 478-486 ◽  
Author(s):  
Roberto Miranda Pacheco ◽  
João Batista Duarte ◽  
Plínio Itamar Mello de Souza ◽  
Sérgio Abud da Silva ◽  
José Nunes Junior
Keyword(s):  
Brazilian Cerrado ◽  
Yield Data ◽  
Breeding Programs ◽  
Soybean Genotype ◽  
Central Brazil ◽  
Soybean Genotypes ◽  
Ammi Model ◽  
Main Effects ◽  
Early Phases ◽  
Maturity Groups

The objective of this work was to identify key locations for the establishment of soybean (Glycine max) genetic breeding programs, in the Central Region of Brazil. Grain yield data of three maturity groups of soybean genotypes, from regional trials conducted over three years, at 18 locations in Brazilian Cerrado were used. A key location for the early phases of the breeding program was defined as the site that best classifies the winning genotypes in the region. Key locations for the final phases were defined as those sites that best represent each environmental stratum, in relation to the adaptability of the respective winning genotype. This adaptability was estimated by additive main effects and multiplicative interaction (AMMI) model analysis, using the distance between the score of each location in a stratum and the score of the winning genotype, which characterizes such stratum in an AMMI biplot. The locations that best classified the winning genotypes over space and time were Mineiros, Placas and Rio Verde. For the final phases of genotype selection, with data from the three maturity group, the recommended locations were: Buritis, Chapadão do Céu, Iraí, Pamplona, Placas, Planaltina, Rio Verde, Sacramento, Senador Canedo, Uberaba, and Uberlândia.

scholarly journals Study Regarding Growing and Development Stages at Soybean Genotypes

2020 ◽  
Vol 77 (2) ◽  
pp. 31
Author(s):  
Adrian NEGREA ◽  
Teodor RUSU ◽  
Raluca REZI ◽  
Camelia URDĂ ◽  
Vasilena SUCIU
Keyword(s):  
Block Design ◽  
Climatic Conditions ◽  
Early Maturity ◽  
Rate Of Development ◽  
Development Stages ◽  
Randomized Block Design ◽  
Soybean Genotypes ◽  
Beginning Of Flowering ◽  
Daily Period ◽  
Maturity Groups

Soybean is one of the most important sources of vegetable oil and protein. The aim of this study is to evaluate the behavior of 75 European soybean genotypes from four maturity groups regarding the influence of climatic conditions of 2020 on soybean main growing and development stages. The experiment was conducted at the ARDS Turda in 2020, using a complete randomized block design with three replications. Dates of emergence (VE) and beginning of flowering (R1), were recorded for all 75 soybean cultivars from each of the four maturity groups (000 to I). Results obtained show that growing, and development stages of the studied soybean genotypes are according both with: thermal units and daily period from sunrise to sunset. Effects of daylength and temperature on soybean development were estimated. The rate of development to flowering was fastest for the very early genotypes than for genotypes in the semi-early maturity group (MG).

AMMI Analysis to Determine Relative Maturity Groups for the Classification of Soybean Genotypes

2013 ◽  
Vol 12 (4) ◽  
pp. 168-178 ◽  
Author(s):  
Jose Elzevir Cavassim ◽  
Joao Carlos Bespalhok ◽  
Luis Fernando Alliprandi ◽  
Ricardo Augusto De Oliveir ◽  
Edelclaiton Daros ◽  
...  
Keyword(s):  
Ammi Analysis ◽  
Soybean Genotypes ◽  
Maturity Groups

scholarly journals Stability of Soybean Genotypes and Their Classification into Relative Maturity Groups in Brazil

2013 ◽  
Vol 04 (11) ◽  
pp. 2060-2069 ◽  
Author(s):  
José Elzevir Cavassim ◽  
João Carlos Bespalhok Filho ◽  
Luis Fernando Alliprandini ◽  
Ricardo Augusto de Oliveira ◽  
Edelclaiton Daros ◽  
...  
Keyword(s):  
Soybean Genotypes ◽  
Maturity Groups
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