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Investigation on effects of mineral composite variants on bioregulation during germination and on growth and pathogen resistance of crop plants
Project
Project code: JKI-EP-08-2289
Contract period: 01.01.2016
- 01.12.2016
Purpose of research: Applied research
In collaboration with Purmin GmbH as owner of the patent a new type of mineral composites pure or with amendments (e.g. rhamnolipids, Neem oil, charcoal) will be tested as soil improver. In a first step seed coat composition and production of granules will be optimized in order to improve germination and seedling growth of fennel and majoram and to investigate potential effects on some important plant pathogens of the two spice plant species and various cereal crops.
Six coating variants of the project partner were used and compared with two control samples. Fennel: Seed coating had no effect on rate and dynamics of germination neither in greenhouse nor in open ground. Seed coating and granules with same composition as coating material added to field soil had no effect on infection rate of plants with Mycosphaerella anethi. Majoram: Due to technological problems separate coating of single seeds is not possible yet. So far balls very heterogenic in size consisting of numerous seeds are produced. Best germination rate was observed with a combinantion of mineral composite with Neem oil and Rhizovital. Addition of granules could stimulate germination only in plain sand (substrat). In field experiments they did not show any effect. Their water storage capacity appears much too low; they do not disintegrate in soil and therefore cannot make additives available to plant roots. Wheat/rye/barley The problem of durable tight sticking of the coating material to cereal kernels has not been solved sufficiently yet. All in all the coating had only minor effect on germination rate: wheat – slight increase; rye – no effect; barley – slight decrease of germination. No positive impact of seed coating on health status of plants in field was observed.
Section overview
Subjects
- Plant Nutrition
- Crop Protection
- Vegetable Gardening
Framework programme
Funding programme
Excutive institution
Institute for Epidemiology and Pathogen Diagnostics (JKI-EP)
