Effect of Fungicide on Soybean Growth and Yield

Swoboda, Catherine Margaret; Pedersen, Palle

doi:10.2134/agronj2008.0150

Cited by 111 publications

(106 citation statements)

References 19 publications

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“…Based on previous studies, soybean seed germination rate (SGR) could be reduced by seed disease occurrence caused by soil-borne pathogens [37]- [42]. In our untreated and fungicide-treated seed tests without application of flooding, our results showed that fungicide treatment significantly increased soybean seed germination rate (SGR) in the field.…”

Section: Discussionsupporting

confidence: 56%

“…Apron Maxx RTA (Syngenta Crop Protection Inc.) is a broad-spectrum fungicide widely used in the United States for seed treatment, and can control or suppress pathogens Phomopsis, Pythium, Phytophthora, Rhizoctonia, and Fusarium [42]. However, it is still unknown if this fungicide can maintain soybean seed survival and improve seed germination in the flood-affected field.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Flood Stress on Soybean Seed Germination in the Field

Wu¹,

Chen²,

Hummer³

et al. 2017

AJPS

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Flooding is an abiotic stress that impacts soybean [Glycine max (L.) Merr.] growth and reduces seed germination. Effect of flooding on soybean plant grown at different growth stage has been previously conducted and reported. However, soybean seed germination responses to flood stress are largely unknown. The objective of this study was to elucidate flooding influence on soybean seed germination after planting in the field. The research showed that seed germination rate (SGR) of each genotype, without flood stress, was significantly different and ranged between 64.7% to 84.0% and 69.0% to 90.7% while using untreated and fungicide-treated seed (P < 0.0001), respectively. Results indicated that fungicide treatment improved soybean seed survival and germination in the field. The average of SGR of high-yielding soybean group was significantly higher than those of non-high-yielding soybean (P < 0.0001). The results indicated that high-yielding trait of each genotype was correlated with seed germination and survival. Under flood stress in the field, SGR means of untreated and fungicide-treated seed significantly decreased over eight flooding treatment times (P < 0.0001). Flooding effect on germination between untreated and fungicide-treated seed was not significantly different (P = 0.1559). Furthermore, comparing the high-yielding and floodtolerant soybean groups showed no difference in their SGR means over eight flooding treatment times (P = 0.7687 and P = 0.8490), indicating that soybean seed germination did not depend on genotype, yield, and flood tolerance trait, and seed treated by fungicide did not increase its germination in the field under the flood stress. Hence, it is necessary to develop new soybean seed pelleting to improve seed germination in the field under flooding conditions.

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Section: Discussionsupporting

confidence: 56%

Section: Introductionmentioning

confidence: 99%

Effect of Flood Stress on Soybean Seed Germination in the Field

Wu¹,

Chen²,

Hummer³

et al. 2017

AJPS

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“…Since the motion of most fungicides is acropetal (SWOBODA & PEDERSEN, 2009;ANTUNIASSI et al, 2011 andLENZ et al 2011), spraying the base of plants suggests significantly a more effective control of the diseases when compared to sprayings by tips distant from the apex of soybean plants. However, experimental results indicate that the aggregation of such technology in aerial spraying of fungicide from soybean -isolated or in combination with conventional sprayings -did not differ significantly from the spraying by nozzles on the culture; thus refuting the assumptions that justify the use of such technology application.…”

Section: Resultsmentioning

confidence: 99%

“…Likewise, it is here that the coverage and penetration of the fungicide are more adversely affected by the leaf weight of tops to form a barrier spraying, favoring the pathogen (ALMEIDA et al 2,005;CALLA et al 2,009;REIS et al, 2010;CUNHA et al, 2011). Like most systemic fungicides suitable for chemical control of soybean foliar diseases move in the direction of the base to the apex of the plant, the leaves of the lower third of the plant become the target of spraying (SWOBODA & PEDERSEN, 2009;ANTUNIASSI et al, 2011;LENZ et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Fungicide application using a trailing boom in soybean fields

Neto

Fornari²,

Bauer

et al. 2013

Eng. Agríc.

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ABSTRACT:The objective of this study was to determine the effects in the yield of soybean crop utilizing a trailing boom sprayer for chemical control of late season diseases. The experimental design was randomized blocks with 04 treatments, which consisted of applying fungicides with a traditional sprayer, trailing boom, the traditional sprayer plus the trailing boom simultaneously and control (without fungicide aerial application) in 05 repetitions per treatment. The variables evaluated were: final plant population, pods per plant, grains per pod, weight of one thousand grains and yield. It was concluded that the control of foliar diseases with fungicides presented weight of one thousand grains and yield significantly higher than the average of plots without fungicide application. The trailing boom did not significantly affect the yield compared to the technology currently used.

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“…Present, higher yielding soybean production systems typically use lower planting densities and in some cases wider row spacing (e.g., 76 cm) with improved fertilizer source and placement technologies. Grain producers have also realized gains in biomass production and in some cases yield resulting from insecticide and fungicide use (Bradley and Sweets, 2008;Bradshaw et al, 2008;Swoboda and Pedersen, 2009). Th ese more commonly used agronomic practices accompanied by improved varieties may favor nutrient uptake during diff erent key growth stages than originally thought.…”

Section: Soybean Yields In the United States Have Averagedmentioning

confidence: 99%

Nutrient Uptake, Partitioning, and Remobilization in Modern Soybean Varieties

2015

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ABSTRACTe absence of recent data regarding the nutritional needs of modern soybean [Glycine max (L.) Merr.] production systems necessitates a greater comprehensive understanding of nutrient uptake, partitioning, and remobilization. e objective of this study was to evaluate macro-and micronutrient accumulation and partitioning in current soybean cultivars. Across 3 site-years, plants were sampled at seven growth stages and divided into four plant tissue fractions for quanti cation of nutrient uptake. Accumulation (per ha) of 275 kg N, 21 kg P (48 kg P 2 O 5 ), 172 kg K (207 kg K 2 O), 113 kg Ca, 50 kg Mg, 19 kg S, 335 g Zn, 371 g Mn, 325 g B, 849 g Fe, and 63 g Cu were required to produce approximately 3500 and 9500 kg ha -1 of grain and total biomass, respectively. Supplemental fertility modestly increased biomass and yield (2%), but did not alter nutrient partitioning or harvest index. Nutrients with high harvest index (i.e., percentage of total nutrient accumulation partitioned to grain) values included P (81%), N (73%), Cu (62%), and S (61%), which may serve as a limitation to high yield. Seasonal patterns of nutrient accumulation suggested that K and Fe were acquired primarily during late vegetative growth while the uptake of N, P, Ca, Mg, S, Zn, Mn, B, and Cu were more equally distributed between vegetative and seed-lling growth phases. ese results document the rate and duration of macro-and micronutrient accumulation in soybean, and highlight the importance of adequate nutrient availability during key crop growth periods.

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Effect of Fungicide on Soybean Growth and Yield

Cited by 111 publications

References 19 publications

Effect of Flood Stress on Soybean Seed Germination in the Field

Effect of Flood Stress on Soybean Seed Germination in the Field

Fungicide application using a trailing boom in soybean fields

Nutrient Uptake, Partitioning, and Remobilization in Modern Soybean Varieties

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