EFFECT OF PLANT DENSITY ON GROWTH, DEVELOPMENT AND QUALITY OF RIBWORT PLANTAIN (PLANTAGO LANCEOLATA L.)
Published: 1 Jun 2014
Abstract: The aim of the studies carried out in 2012-2013 was to evaluate the influence of plant density (sowing rate) on the growth, development, and accumulation of biologically active compounds in the leaves of plants representing three populations of ribwort plantain (Plantago lanceolata L.). The experiment was established in the third decade of April. Seeds were sown at the rate of 3 and 6 kg/ha. Plants were harvested at three stages of development: vegetative growth, blooming, and seed maturity. Plant weight, root length, leaf length and width, number and length of seed stalks were determined. In the air-dry leaves the content of iridoid glycosides, tannins, flavonoids, and phenolic acids were determined. Sowing rate did not significantly affect the yield of leaves. Plants growing at higher density were characterised by higher content of biologically active compounds.
Keywords: cultivation, populations, sowing rate, time of harvest, morphological traits, iridoid glycosides, tannins, flavonoids, phenolic acids
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