ASPECTS OF Linaria vulgaris Mill. WEED FRUITS VARIABILITY

Abstract

A common species here too is Linaria vulgaris Mill. The plant grows in small, dense clumps around and within various agricultural soils. Recently, there has been an increase in the spread of this weed, especially in the area of poor soils in the south of the territory. Morphological characters have shown a continuous evolution, depending on the existing ecotype at a given time. Thus, the raceme measured 13 cm long and weighed approx. 240 mg. 7.2 seed capsules formed on one raceme. The capsules had a length of 8 cm, a width of 4.7 cm and a mass of 115 mg. 90 seeds were formed on one raceme, the average diameter of which was 2 mm. Significant positive correlations were obtained between most determined characters. Negative correlations were only between seed fin width with the other characters. The determinations made demonstrated the increased adaptability of the weed to the current ecological conditions of the albic luvic soil from South part of country.