Microbial compositions for use in combination with soil insecticides for benefiting plant growth

A plant growth and insecticide technology, applied in the direction of plant growth regulators, biocides, fertilizer mixtures, etc., can solve the problems of high cost, loss, bacteria, fungi, and arthropods.

Inactive Publication Date: 2018-07-13
FMC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chemical agents can be used to control fungal plant pathogens but the use of chemical agents has several disadvantages including high cost, lack of efficacy, emergence of resistant strains of fungi, and undesired environmental impact
Additionally, these chemical treatments tend to be indiscriminate and may adversely affect beneficial bacteria, fungi, and arthropods in addition to the phytopathogens targeted by the treatment
A second type of plant pest is a bacterial pathogen including, but not limited to, Erwinia spp. (e.g. Erwinia chrysanthemi), Pantoea spp. (e.g. P. .citrea)), Xanthomonas (e.g. Xanthomonas campestris), Pseudomonas spp. (e.g. P. syringae) and Ralstonia spp. (such as R. soleacearum), which can cause serious economic losses in the agricultural and horticultural industries
The last class of plant pathogens includes phytopathogenic nematodes and insects which cause severe damage and loss of plants

Method used

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  • Microbial compositions for use in combination with soil insecticides for benefiting plant growth
  • Microbial compositions for use in combination with soil insecticides for benefiting plant growth
  • Microbial compositions for use in combination with soil insecticides for benefiting plant growth

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 11

[0066] Example 11 describes a greenhouse study to evaluate the effect of in-furrow application of bacterial strain CH200 with Capture LFR and liquid fertilizer (8-24-0) on maize growth under ideal humidity and drought stress conditions. These findings indicated that fertilizers had a negative effect on early root development in water-stressed soil environments; however, at 41DAP (V6 stage), these plants treated with Capture LFR+CH200 as well as liquid fertilizers had statistically thicker stem, statistically heavier shoot dry weight, and statistically heavier root dry weight (see Figure 14 A-14C and Figure 15 ). Under ideal water supply conditions, limited statistical differences were detected between Capture LFR and Capture LFR+CH200; the exception was statistically thicker stalks measured at 41 DAP when maize was treated with the CH200 strain. Plants grown in an ideal soil environment containing CH200 were further developed. Typically, plants grown in ideal or arid soil...

Embodiment 12

[0067] Example 12 describes a field trial of cauliflower and turnip plants in which 1.5X 10 11 , 2.5X 10 12 or 2.5X10 13 CFU / ha of Bacillus licheniformis CH200 spores. Addition of CH200 to cauliflower increased cauliflower fresh weight yield from 3 kg (control) to 2.5×10 13 3.6kg and 2.5X10 in CFU / ha of CH200 12 3.8kg at CFU / ha of CH200, representing a 20%-26% increase in weight. Addition of CH200 spores to turnip plants increased tuber weight yield from 3.3 kg (control) to 5.8 kg (2.5×10 13 CFU / ha CH200), 4.2kg (2.5X10 12 CFU / ha CH200) and 4.9kg (1.5X10 11 CFU / ha CH200), or a weight gain of 76%, 27%, or 48%.

Embodiment 13

[0068] Example 13 describes a field trial of zucchini and turnip plants in which 1.5X 10 11 , 2.5X 10 12 CFU / ha of Bacillus pumilus RTI279 spores. The addition of RTI279 spores increased yield of both overall and marketable zucchini compared to control zucchini plants that did not include B. pumilus RTI279 spores in irrigation. Specifically, the plants treated with RTI279 (application rate 2.5×10 12 CFU / ha) brought an average of 36kg of total zucchini, of which 30kg was marketable, compared to untreated plants ( Figure 18 A (control plants) and Figure 18 B (RTI279 application rate 2.5X10 12 CFU / ha)) totals 22kg of zucchini, of which 17kg is salable. The addition of both concentrations of RTI279 spores resulted in a 67% increase in tuber weight yield compared to control turnip plants that did not include B. pumilus RTI279 spores in irrigation.

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Abstract

Compositions and methods are provided for benefiting plant growth. The compositions contain isolated bacterial or fungal strains having properties beneficial to plant growth and development that can provide beneficial growth effects when delivered in a liquid fertilizer in combination with a soil insecticide to plants, seeds, or the soil or other growth medium surrounding the plant or seed. The beneficial growth effects include one or a combination of improved seedling vigor, improved root development, improved plant health, increased plant mass, increased yield, improved appearance, improvedresistance to osmotic stress, improved resistance to abiotic stresses, or improved resistance to plant pathogens. The isolated bacterial strains include those of the Bacillus species including speciessuch as Bacillus pumilus, Bacillus licheniformis, and Bacillus subtilis.

Description

[0001] Related application cross-references [0002] This application claims priority from U.S. Provisional Application No. 62 / 097,198, filed on December 29, 2014, and U.S. Provisional Application No. 62 / 171,582, filed on June 5, 2015, which are incorporated herein by reference in their entirety. Technical field [0003] The presently disclosed subject matter relates to compositions and products containing isolated microbial strains, as well as methods of using the compositions and products to promote plant growth. Background of the invention [0004] It is known that many microorganisms with beneficial effects on plant growth and health are present in the soil, living with the plants, especially in the root zone (Plant Growth Promoting Rhizobacteria "PGPR"), or as endophytes Live in plants. Their beneficial plant growth promoting properties include nitrogen fixation, iron chelation, phosphate solubilization, inhibition of non-beneficial microorganisms, insect resistance, i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N53/00A01N63/00A01N63/22C05G3/60
CPCC05G3/60Y02A40/10Y02A50/30Y02E50/30Y02W30/40A01N63/22A01N37/46A01N51/00A01N53/00
Inventor S·塔加维D·范德乐列M·R·万斯雷N·卡尔德维尔T·E·安德森V·J·斯帕达福拉L·布克卢
Owner FMC CORP
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