Wpływ substancji allelopatycznych na kiełkowanie nasion, wzrost i rozwój roślin
Influence of allelopathic substances on the sprouting of seeds, growth and development of plants

Summary/Abstract: The effects exerted by allelochemicals on physiological and metabolic processes have beenwidely treated in various publications on the subject. The key allelopathic impacts consistin plants releasing into the environment chemicals capable of modifying the growth anddevelopment of other plants. This modification may have either a stimulating or inhibitingeffect. Allelochemicals are capable of affecting a number of biochemical physiologicalprocesses occurring in plants, and they may also modify their course. Growth is the processthat is particularly vulnerable to the presence of allelochemicals. The latter are capableof having particularly adverse effects on cell divisions and elongation. Photosynthesis isanother process affected by allelochemicals. They may either operate directly, by producingalterations in the photosynthetic apparatus, or indirectly, via limiting water uptake andtransport within plants. The three basic sources from which allelochemicals are released areas follows: cultivated plants, weeds, and microorganisms. Allelochemicals were discovered inall plant parts, both vegetative and generative. The highest allelopathic effects are attributedto compounds derived from the vegetative parts.

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