A termesztett köles, mint gyomnövény (Panicum miliaceum L.) csírázásának gátlása növényi kivonatokkal

Abstract

The plants, which have allelopathic effects, contain manifold biologically active ingredients compared to conventional herbicides. These types of compounds may have significant potential. It is possible that they will become an alternative to synthetic herbicides in the future, since their outstanding advantage is to prevent the development of herbicide-resistant weed species. However, due to their disadvantages, they certainly will not fully replace the herbicides used widespread nowadays, namely that their production in large amounts and their use is difficult, their effectiveness may be unsure and the duration of their effectiveness can be shorter. Our aim was to determine the effects of aqueous extracts of some cultivated plants – in particular, common sage (Salvia officinalis L.), chamomile (Matricaria recutita L.), garden thyme (Thymus vulgaris L.), lemongrass (Melissa officinalis L.), tarragon (Artemisia dracunculus L.), rosemary (Rosmarinus officinalis L.), peppermint (Mentha x piperita L.) – on the germination of common millet (Panicum miliaceum L.). After appropriate preparation, the seeds have been germinated for 7 days in Petri-dishes, placed in thermostat at 25°C. Based on our experiment, it can be established that aqueous extract of lemongrass (Melissa officinalis L.), rosemary (Rosmarinus officinalis L.) and sage (Salvia officinalis L.) do not show any effect on the germination of common millet. Aqueous extract of peppermint (Mentha x piperita L.) and thyme (Thymus vulgaris L.) have low effect on its germination. Tarragon (Artemisia dracunculus L.) showed medium while chamomile (Matricaria recutita L.) showed strong inhibitory effect on germination. The extracts influenced the extent of shoot and root growth.