Method of improving yield and vigor of plants

a technology of agronomic plants and fungicides, applied in the field of improving the yield and vigor of agronomic plants, can solve the problems of low cost of foliar fungicide treatment, adverse effects on soybean yield, and inability to apply, so as to improve the vigor and yield of agronomic plants, the effect of easy application

Inactive Publication Date: 2005-10-20
MONSANTO TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0064] Among the several advantages found to be achieved by the present invention, therefore, may be noted the provision of a method that improves the vigor and yield of agronomic plants in general, and in particular, for legumes, such as soybeans, the provision of a such a method that is easy to apply.

Problems solved by technology

Soybean yield can be adversely affected by several diseases, and among these are pythium damping off (Pythium spp.
Plant disease management for soybeans has always relied more on agronomic practices than on pesticides, and seed treatment and foliar fungicides, along with nematicides, play a limited role.
However, the cost of such seed treatment is modest relative to overall production costs.
Therefore, the incentive to search for different fungicides to act as fungicidal seed treatment compounds for soybeans has been slight.

Method used

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  • Method of improving yield and vigor of plants
  • Method of improving yield and vigor of plants
  • Method of improving yield and vigor of plants

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0390] This example shows a method of treating soybean seed with silthiofam with and without Bradyrhizobium spp. inoculum.

[0391] Soybean seed (CSR2121 variety, available from Monsanto Company, St. Louis, Mo.), was placed in a rotostatic seed treatment device (available from Hege Equipment, Inc., Colwich, Kans.). A spreader / sticker compound (Mollyflo®, available from Soygro (Pty) Ltd., Mooibank, Botchefstroom, South Africa) was added to the seed with agitation at the rate of 4 ml / kg of seed and distributed over the eed. A formulation containing 4,5-dimethyl-N-2-propenyl-2-trimethylsilyl)-3-thiophene carboxamide (silthiopham) as the active ingredient was added to the coated seed at the rate of 2 ml / kg of seed. The formulation was prepared according to the formulation shown above for Composition I, and contained about 125 gm / liter of silthiopham. The active formulation was added to the coated seed after addition of the spreader / sticker and during agitation of the seed.

[0392] For seed...

example 2

[0393] This example shows the effect of the treatment of soybean seed with silthiopham on the yield and vigor of soybean plants in a field trial in the United States.

[0394] A field trial was carried out in the upper Midwestern United States for the purpose of testing the effect of soybean seed treatment with silthiopham compared to no treatment and seed treatments with conventional materials. The soil type for the site was St. Charles silt loam having a pH of 6.4, and having P=48 ppm, K=154 ppm, and O.M.=3.0%. No fertilizer was applied, and no-tillage cultivation practice was adhered to. The trial followed Roundup-Ready® corn on which Harness® followed by Roundup® and Atrazine® had been applied according to conventional practice. There was no irrigation. The trial was of RCB 1 factor design, with 4 replications. Seeds were planted as early as possible to ensure some stress on the seeds.

[0395] Soybean seeds of the CSR2121 variety (available from Monsanto Company, St. Louis, Mo.) we...

example 3

[0401] This example shows the effect of the treatment of soybean seed with silthiofam on the yield and vigor of soybean plants in a field trial in South Africa.

[0402] Trials were conducted on five commercial soybean farms in different climatological areas in South Africa as shown in Table 3. Trial sites represent different soil types ranging from sandy to heavy clay. Trials included irrigation and dryland regions in the cool Highveld regions as well as the warmer Northern Transvaal.

TABLE 3Soybean farms, soil types, irrigation status andsoybeans cultivars used for the field trial.FARMDRYLAND orSOYBEANNUMBERIRRIGATEDCULTIVARSOIL TYPE1IrrigatedSNK500Loam2IrrigatedA5308Sandy loam3DrylandWenner90Clay loam4DrylandSNK444Sand clay 12%5DrylandSNK400Clay 40%

[0403] Soybean seed for the trial was treated in the field and planted immediately thereafter. Seed that was to receive a treatment was initially covered with Mollyflo®, or a Mollyflo®+silthiopham mixture to insure uniform coating. When...

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Abstract

A method of improving the yield and vigor of agronomic plants, in particular leguminous plants such as soybeans, involves treating such plants and / or the propagation material of plants with a composition that includes an active agent, such as a fungicide, that has no significant activity against fungal plant pathogens of the treated plant. When the plant is not wheat, a preferred agent of this type is 4,5-dimethyl-N-(2-propenyl)-2-(trimethylsilyl)-3-thiophenecarboxamide (silthiofam). Plants and plant propagation material, such as seeds, that have been treated by the novel method are also described.

Description

[0001] The present application is a continuation application of U.S. Non-Provisional patent application Ser. No. 10 / 026,301 filed Dec. 19, 2001 which claims the benefit of U.S. Provisional Application Ser. No. 60 / 257,502 filed Dec. 22, 2000, which are incorporated herein by reference thereto.BACKGROUND OF THE INVENTION [0002] (1) Field of the Invention [0003] The present invention relates to the improvement of the yield and vigor of agronomic plants, and more particularly to a method of improving the yield and vigor of agronomic plants by treatment of the plant or its propagation material with certain active agents. [0004] (2) Description of the Related Art [0005] Plants, and in particular, legumes, are a critical source of food, animal feed, fiber, and useful chemicals and medicaments. The ability of legumes to fix nitrogen provides this order of plants with the unusual ability to provide high quality nutritional proteins as well as to improve the nitrogen content of the soils in w...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A01N55/00A01N55/10
CPCA01N55/00
Inventor DE BILLOT, MAURICE R.VAN WYK, SCHALKODENDAAL, THEUNIS E.M.PHILLION, DENNIS PAULCOULTAS, JEFFREY S.SANDERS, ERNEST F.PENNER, GREY A.ASRAR, JAWEDSTERN, MICHAEL K.
Owner MONSANTO TECH LLC
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