Impact of spacing and soil types on yield of the above ground biomass of bigroot geranium (Geranium macrorrhizum L.)

Abstract

This paper presents results of experiments on impacts of spacing and soil types on yield of above-ground biomass of bigroot geranium (Geranium macrorrhizum L.). Experiments were carried out on three types of soil: chernozem, brown forest and marsh soil. The experiments were set following randomized complete block design, with application of four row spacing in four replications. Row spacing was set as follows: I (50x20 cm), II (50x30 cm), III (70x20 cm) and IV (70x30 cm). G. macrorrhizum L. population that is grown and produced in the Institute of Medicinal Plant Research 'Dr Josif Pančić' from Belgrade was subjected to testing. The seedlings were produced in greenhouses and transplanted into the field in the third decade of March. The highest yield of the above-ground biomass of G. macrorrhizum L. was achieved on the chernozem soil, while the lowest one was on the marsh soil type. In the variant with row spacing I (50x20cm), significantly higher yields of above-ground biomass of bigroot geranium (Geranium macrorrhizum L.) in comparison to other tested spacing variants.

U radu je dat prikaz rezultata ogleda uticaja veličine vegetacionog prostora i tipa zemljišta na prinos nadzemne biomase zdravca. Istraživanja su provedena na tri tipa zemljišta: černozem, gajnjača i ritska crnica. Ogledi su zasnovani po slučajnom blok sistemu sa četiri veličine vegetacionog prostora u četiri ponavljanja. Veličine vegetacionog prostora određene su sledećim rastojanjima: I (50x20 cm), II (50x30 cm), III (70x20 cm) i IV (70x30 cm). Testirana je populacija zdravca koja se gaji i umnožava u Institutu za proučavanje lekovitog bilja 'Dr Josif Pančić' iz Beograda. Rasad je proizveden u plasteniku i rasađen u trećoj dekadi marta. Najveći prinos nadzemne biomase zdravca ostvaren je na zemljištu u tipu černozem, a najmanji na zemljištu u tipu ritske crnice. U varijanti sa veličinom vegetacionog prostora 50x20 cm, ostvaren je veoma značajno veći prinos nadzemne biomase zdravca u odnosu na ostale veličine vegetacionog prostora.