| Abstract: | Macrosymptoms of boron deficiency in Mentha piperita L. The influence of boron deficiency on growth and development of Mentha piperita L. – var. Mitcham – was studied under controlled experimental conditions in solution culture. Acute boron deficiency depressed growth of stems and roots. Furthermore the following symptoms – well known as boron deficiency symptoms – occured in peppermint: restricted growth of internodes, leaf distortion, simplification of leaf form, dropping of parts of organs, bursting of cortex tissue, dis – colouration, chlorosis and necrosis. The typical symptom in dicots – death of growing point – could not be observed in peppermint. The visible symptoms of boron deficiency in peppermint are typical for that micronutrient. They can be helpful in diagnosing and curing that deficiency. |
