Effect of selenium seed treatment on selenium concentrations in soybeans

1995 ◽  
Vol 75 (3) ◽  
pp. 287-291 ◽  
Author(s):  
J. A. MacLeod ◽  
Umesh C. Gupta
Keyword(s):  
Prince Edward Island ◽  
Seed Treatment ◽  
Dry Matter ◽  
Sandy Loam ◽  
Foliar Spray ◽  
Soybean Seed ◽  
Eastern Canada ◽  
Dietary Concentration ◽  
Treated Seed ◽  
Se Status

This study was conducted in Prince Edward Island (PEI), Canada, to determine the effect selenium (Se) treated seed on Se concentrations in soybean seed (Glycine max). Seed Se concentrations were also compared to those obtained with foliar applied Se. An application of 10 g Se ha−1 as seed treatment raised soybean Se concentrations to more than 0.5 mg kg−1. Soybeans with these Se concentrations, when included in rations at 200 kg t−1 with other low Se ingredients, would produce rations exceeding 0.1 mg Se kg−1, i.e., the minimum level required to prevent Se deficiency in livestock. Seed treatment with 100 g Se ha−1 produced soybean Se concentrations greater than 10 mg Se kg−1. When included in rations at 200 kg t−1 with other low Se feed sources, soybeans with such Se levels would produce rations in excess of the maximum tolerable dietary concentration of 2 mg Se kg−1 dry matter. Even higher soybean Se concentrations were obtained from equivalent Se rates when applied as foliar spray. In summary, treatment of soybean seed with Se has a potential for improving the Se status of rations that would be formulated with ingredients originating from Se deficient areas. Key words: Foliar applied Se, seed Se, sandy loam, Eastern Canada

scholarly journals Seed Treatment with Phosphonate (AG3) Suppresses Pythium Damping-off of Cucumber Seedlings

Plant Disease ◽  
2006 ◽  
Vol 90 (4) ◽  
pp. 459-464 ◽  
Author(s):  
P. A. Abbasi ◽  
G. Lazarovits
Keyword(s):  
Seed Treatment ◽  
Sandy Loam ◽  
Cost Effective ◽  
Controlled Environment ◽  
Damping Off ◽  
Untreated Seed ◽  
Cucumis Sativus L ◽  
Muck Soil ◽  
Treated Seed ◽  
Loam Soil

A formulation of phosphonate (AG3) was tested as a seed treatment for the control of Pythium damping-off of cucumber (Cucumis sativus L.) plants under controlled environment and field conditions. Cucumber seed were treated by soaking for 10 min in phosphonate solution. They were then planted into peat-based mix or sandy-loam soil mixed with Pythium aphanidermatum or P. ultimum inoculum or into muck soil naturally infested with P. irregulare, P. ultimum, and other Pythium spp. Under growth-room conditions, phosphonate seed treatment provided more than 80% control of damping-off in all infested substrates tested. Effective disease control was obtained even when treated seed were stored for 5 weeks and up to 18 months prior to planting. In microplots containing naturally infested muck soil, phosphonate seed treatment decreased the percentage of diseased cucumber plants and increased total fresh weights compared with untreated seed and phosphonate post-planting drench. In field-plot tests 6 weeks after planting treated seed in Pythium-infested muck soil, cucumber stands were 63% compared with 18% in the control, which had no phosphonate exposure, and 53% in the post-planting drench. Tests for potential phytotoxicity in the greenhouse showed that radish and bok choy germination was reduced by phosphonate treatment but corn, cucumber, soybean, sugar beet, tomato, and wheat were not affected. Phosphonate seed treatment is a cost-effective way of protecting cucumber plants from Pythium damping-off.

FUNGICIDE SEED TREATMENT OF RYEGRASSES TO IMPROVE SEEDLING ESTABLISHMENT AND INCREASE FORAGE YIELDS

1982 ◽  
pp. 139-143
Author(s):  
R.E. Falloon
Keyword(s):  
Seedling Establishment ◽  
Seed Treatment ◽  
Dry Matter ◽  
Untreated Seed ◽  
Routine Treatment ◽  
Treated Seed ◽  
Field Plots ◽  
Forage Yields

Treatment of seed of four ryegrass cultivars (Lolium spp.) with captan or thiram before sowing increased herbage yields from field plots 3 months after sowing by 33% (Ruanui), 51% (Manawa), 51% (Paroa) and 104% (Moata). Herbage yields and numbers of established plants were closely correlated. A second trial measured yield of Ruanui during 12 months following sowing. Captan seed treatment increased dry matter by 51% at conventional seeding rates (17.5 kg/ ha). Dry matter from plots sown with captan treated seed at 2.2 kg/ha did not differ from that from plots sown with untreated seed at 17.5 kg/ ha. Routine treatment of ryegrass seed to improve seedling establishment is strongly recommended.

scholarly journals Gibberellin and cytokinin effects on soybean growth

2003 ◽  
Vol 60 (3) ◽  
pp. 537-541 ◽  
Author(s):  
Vagner Maximino Leite ◽  
Ciro Antonio Rosolem ◽  
João Domingos Rodrigues
Keyword(s):  
Plant Growth ◽  
Root Growth ◽  
Leaf Area ◽  
Vegetative Growth ◽  
Seed Treatment ◽  
Dry Matter ◽  
Foliar Application ◽  
Foliar Spray ◽  
Stem Diameter ◽  
Joint Application

Soybean is an important crop in Brazil. Nonetheless, there are no reports on the use of plant growth regulator potential in relation to this crop in the national literature. To better understand the role of these compounds, a pot experiment was carried out to study effects of GA3 and cytokinin on the vegetative growth of the soybean. GA3 (50 mg L-1) was applied as seed treatment, leaving plants with water application as control. GA3 (100 mg L-1) and cytokinin (30 mg L-1) were sprayed on leaves at the physiological stage V3/V4, and 15 days after, cytokinin (30 mg L-1), also as foliar spray. Seed treatment decreased plant emergence and initial soybean root growth, but as the season progressed, differences in root growth disappeared; plants were shorter, and presented a decrease in the number of nodes, in stem diameter, in leaf area and in dry matter yield. Conversely, foliar application of GA3 led to an increase in plant height, first node height and stem diameter. Leaf area and dry matter production also increased as a result of GA3 foliar application. There was no effect of exogenous gibberellin and cytokinin on the number of soybean leaves, number of stem branches and root dry matter. Joint application of gibberellin and cytokinin tended to inhibit gibberellin effects. Cytokinin applied to leaves during soybean vegetative growth was not effective in modifying any of the evaluated plant growth variables.

Using a sequential density and particle-size fractionation to evaluate carbon and nitrogen storage in the profile of tilled and no-till soils in eastern Canada

2009 ◽  
Vol 89 (3) ◽  
pp. 255-267 ◽  
Author(s):  
E G Gregorich ◽  
M R Carter ◽  
D A Angers ◽  
C F Drury
Keyword(s):  
Particle Size ◽  
Organic Matter ◽  
Prince Edward Island ◽  
Sandy Loam ◽  
Soil Tillage ◽  
Size Fractionation ◽  
Eastern Canada ◽  
No Till ◽  
Particle Size Fractionation ◽  
C And N

Tillage influences the retention and storage of organic matter (OM) in soil. We used a sequential density and particle-size fractionation to evaluate the total quantity and distribution of organic carbon (C) and nitrogen (N) in the profile of soils under mouldboard ploughing and no-till. Cores (0-60 cm) from four long-term tillage studies (in Prince Edward Island, Quebec, and two sites in Ontario) on soils of different textures, from sandy loam to clay were collected and divided into six depth increments. Four soil OM fractions were isolated on the basis of size and density from each sample. At two sites the standing stocks of C and N were larger in tilled than in no-till soil profiles at depths slightly greater than plough depth; tillage effects were also evident at a third site, where the mass of C in a layer close to the depth of ploughing was greater in tilled soils. Ploughing also had a substantial and consistent positive effect in all four soils on the quantity of C (and in some cases N) protected within aggregates, particularly at or near the bottom of the plough layer, and sometimes in surface soil layers. We attribute differences observed in whole soil C and N due to tillage mostly to differences in mineral-associated OM, particularly in soils with heavier textures, but the other size and density fractions could, together, account for as much as 25% of the difference. Because the C capacity level was not reached in heavy-textured soils, these soils show greater potential for further accumulation of C in the soil profile than coarse-textured soils, especially near the bottom of the plough layer.Key words: Light fraction, soil organic matter, soil tillage, physically-protected organic matter, no-till, soil texture

Relationship between soybean seed selenium and harvested grain selenium

1999 ◽  
Vol 79 (1) ◽  
pp. 221-223 ◽  
Author(s):  
Umesh C. Gupta ◽  
J. A. MacLeod
Keyword(s):  
Prince Edward Island ◽  
Field Experiments ◽  
Sandy Loam ◽  
Soybean Seed ◽  
Selenium Concentration ◽  
Soybean Crop ◽  
Se Deficiency ◽  
Deficiency Diseases ◽  
The Relationship ◽  
Podzol Soils

Field experiments were conducted on sandy loam soils in Prince Edward Island (PEI) with two cultivars of soybeans at two locations to determine the relationship between Se concentration in the seed sown and the Se concentration found in the harvested soybean crop. Seeds containing a range of Se from 0.78 to 38.5 mg kg−1 were used. These variable concentrations of seed Se were obtained in field experiments by varying the rates of seed and foliar applied Se. Grain Se concentration increased with increased Se concentration in the planted seed. A high proportion of the variation in Se concentration in the harvested soybean crop was explained by variation in the Se content of the planted seed (R2 = 0.98). The regression was calculated using averages of cultivars for both locations. From the regression equation it could be predicted that planting seed containing 24 mg Se kg−1 would produce a soybean crop containing 0.5 mg Se kg−1. When used at 200 kg soybean per tonne ration this would provide a Se concentration of 0.1 mg kg−1 assuming negligible contributions from other ingredients. Selenium concentration of 0.1 mg kg−1 in animal ration is considered adequate to protect livestock from Se deficiency diseases. Key words: Podzol soils, seed-applied Se, grain Se

EFFECT OF METHODS OF APPLICATION AND RESIDUAL EFFECT OF MOLYBDENUM ON THE MOLYBDENUM CONCENTRATION AND YIELD OF FORAGES ON PODZOL SOILS

1979 ◽  
Vol 59 (2) ◽  
pp. 183-189 ◽  
Author(s):  
UMESH C. GUPTA
Keyword(s):  
Prince Edward Island ◽  
Trifolium Pratense ◽  
Sandy Loam ◽  
Foliar Spray ◽  
Residual Effect ◽  
Red Clover ◽  
Phleum Pratense ◽  
Point Of View ◽  
Residual Effects ◽  
Trifolium Pratense L

Alfalfa (Medicago sativa L. ’Saranac’), red clover (Trifolium pratense L. ’Lakeland’), and timothy (Phleum pratense L. ’Climax’) were grown at two locations on Charlottetown fine sandy loam soils in Prince Edward Island. The pH values of the soils were 5.6 and 5.7, respectively. The three levels of lime were 0, 2.24 and 4.48 metric tonnes/ha and the Mo treatments included no Mo, Mo added as foliar spray and Mo added to the soils. In the first sampling, applications of 0.44 kg Mo/ha as foliar spray to soil limed to pH 5.9 and 6.3 in the three crops resulted in tissue Mo concentrations of greater than 10 ppm which when fed to livestock could produce Mo toxicity. With soil applications of 0.88 kg Mo/ha, tissue Mo concentrations of greater than 10 ppm occurred only in alfalfa and red clover limed to soil pH 5.6, 5.9 and 6.3. The tissue Mo levels in the second sampling decreased sharply when compared to those in the first sampling. The differences in Mo concentrations in second, third and fourth samplings were very small. There was a significant interaction (Mo × lime) because the increases of Mo concentration in red clover due to liming were much greater at higher rates of Mo than at lower rates of Mo. In the case of a suspected Mo deficiency, addition of about 0.2 kg Mo/ha as foliar spray or of 0.4 kg Mo/ha applied to the soil should alleviate a Mo deficiency problem. Residual effects at these levels of Mo should last for 2–3 yr from the crop sufficiency point of view. Molybdenum applied as foliar spray increased timothy yields by 15–17% at one location.

scholarly journals Assessing the Effectiveness of Zn Acetate and Oxide as Alternatives for Corn and Soybean Seed Treatment in Sandy and Clay Soil

2017 ◽  
Vol 9 (12) ◽  
pp. 63
Author(s):  
Matheus Gomes Nirschl ◽  
Risely Ferraz De Almeida ◽  
Eduardo Zavaschi ◽  
Lílian Angélica Moreira ◽  
Godofredo César Vitti ◽  
...  
Keyword(s):  
Sandy Soil ◽  
Seed Treatment ◽  
Dry Matter ◽  
Clay Soil ◽  
Agricultural Soils ◽  
Soybean Seed ◽  
Principal Component ◽  
Seed Treatments ◽  
Corn Seed ◽  
Zn Accumulation

Zinc (Zn) is the micronutrient with the lowest availability in agricultural soils, and consequently 50 % of the world’s soils present Zn deficient. To test the viability of alternative Zn sources (Zn acetate and Zn oxide) to corn and soybean seed treatments, we ran an experiment using these two alternatives at contrasting application rates (0; 0.25; 0.50; 0.76 and 1.01 g kg-1) applied to soybean and corn seeds that were subsequently sowed in sandy and clay soils. We measured: Zn accumulation, dry matter and germination, and analyzed this data using uni (LSD-test) and multivariate analysis (Principal Component Analysis, PCA). Results of the PCA showed that the sandy soil yielded higher dry matter and Zn accumulation than the clay soil. The corn provided higher dry matter while the soybean showed enhanced Zn accumulation and germination. The LSD test showed that corn presented positive Zn accumulation in response to Zn rates in both sandy and clay soil. For soybeans, this effect was only observed in sandy soil, while the clay soil presented decreases in dry matter and germination due to Zn rates. Overall, our findings reveal that both Zn acetate and Zn oxide are viable alternatives for supplying Zn to corn seed treatment in sandy and clay soil, and to soybean seed treatment in sandy soil. We suggest that more research should be undertaken to understand the response of soybean seed treatments to Zn supply, especially in clay soil.

scholarly journals Influence of Natural Liquid Organics on Morphology and Growth Attributes of Blackgram (Vigna mungo L.)

2021 ◽  
Author(s):  
Y. Bhargavi ◽  
P. Sudhakar ◽  
V. Raja Rajeswari ◽  
T. Giridhara Krishna
Keyword(s):  
Plant Height ◽  
Seed Treatment ◽  
Dry Matter ◽  
Root Nodules ◽  
Foliar Spray ◽  
Yield Attributes ◽  
Significant Difference ◽  
Growth Attributes ◽  
Organic Formulations ◽  
Soil Water Resources

Background: Heavy use of chemicals in agriculture has weakened the ecological base and caused the degradation of soil, water resources and quality of the food. The increasing cost and unavailability of fertilizers, growing ecological concern has forced us to try new methods of application of nutrients. Natural farming is the new method introduced as a holistic alternative to the present chemical input based agriculture. There has been increasing interest in the use of panchagavya, beejamrutha, jeevamrutha and other liquid organic formulations during the recent years. Therefore, there is a need to compare the efficiency of natural liquid organics and the regular chemical fertilizers. Hence, the present investigation is taken up with the aim to study the effect of different foliar spray of organics on growth of blackgram. Methods: A field experiment was conducted at the dryland farm, S.V. Agricultural College, Tirupati during Kharif, 2017 to study the effect of foliar sprays of different natural liquid organics on morphological and growth attributes of blackgram. Result: The results indicated that RDF (recommended dose of fertilizers) recorded significantly maximum plant height, leaf area, dry matter, seed yield and other yield attributes over the foliar spray of liquid organics. Results further revealed that significantly lower plant height, dry matter were recorded in the treatment receiving seed treatment with beejamrutha. No significant difference in terms of days to 50% flowering was observed among the treatments. Significantly higher emergence index was recorded in the treatments receiving seed treatment with beejamrutha and water. Integrated use of organics has recorded significantly more number of root nodules compared to other treatments. Jeevamrutha foliar spray recorded to be superior over panchagavya foliar spray which was attributed to the presence of micronutrients in jeevamrutha.

Comparative Effectiveness Of Seed Treating And Foliar Insecticides Against Sucking Pests Of Cotton And Impact On Their Natural Enemies

2013 ◽  
Vol 38 (1) ◽  
pp. 61-70 ◽  
Author(s):  
SMA Hossain ◽  
MA Baque ◽  
MR Amin
Keyword(s):  
Natural Enemies ◽  
Untreated Control ◽  
Seed Treatment ◽  
Foliar Spray ◽  
Cost Ratio ◽  
Research Station ◽  
Benefit Cost Ratio ◽  
Benefit Cost ◽  
Thrips Population ◽  
Cotton Cultivar

The Imidacloprid insecticide, Gaucho 70 WS at 1.5, 2.5, 3.5, 4.5 and 5.5 g/kg seed was used as seed treatment and monocrotophos 40 WSC at 1120 ml/ha was applied as foliar spray on CB9 cotton cultivar to suppress aphid, whitefly and thrips, and impact on their natural enemies during 2008-2011 at the Regional Cotton Research Station, Dinajpur, Bangladesh. The activity of natural enemies, such as ladybird beetle, lacewing, syrphid, and spider population on the sucking pests attacking cotton cultivar CB9 and yield of cotton were recorded. Imidacloprid significantly reduced aphid, whitefly, and thrips population on cotton crops compared to untreated control or foliar spray of monocrotophos 40 WSC at 1120 ml/ha. Ladybird beetles, lacewings, syrphids, and spiders were abundant in the field but their population decreased in the treated plots compared to untreated control. The CB9 cotton cultivar produced significantly higher yield (1.73 t/ha) with a benefit cost ratio 12.47 when seeds were treated with Imidacloprid at 5.5 g/kg fuzzy seed. This study indicated that Imidacloprid (Gaucho 70 WS) used as a seed treatment may be suggested to the cotton growers for controlling sucking pests. Bangladesh J. Agril. Res. 38(1): 61-70, March 2013 DOI: http://dx.doi.org/10.3329/bjar.v38i1.15190

On-Farm Soybean Seed Treatment Trials

2015 ◽  
Author(s):  
Jim Fawcett ◽  
Zack Koopman ◽  
Lance Miller ◽  
Wayne Roush ◽  
Josh Sievers
Keyword(s):  
Seed Treatment ◽  
Soybean Seed ◽  
Treatment Trials ◽  
On Farm
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