Izvorni znanstveni članak
https://doi.org/10.5513/JCEA01/22.3.3098
Differences in allelopathic effect of tree of heaven root extracts and isolated ailanthone on test-species
Maja NOVAK
orcid.org/0000-0002-6837-3079
; Centre for Plant Protection, Croatian Agency for Agriculture and Food. Gorice 68b, 10000 Zagreb, Croatia
Nenad NOVAK
; Centre for Plant Protection, Croatian Agency for Agriculture and Food. Gorice 68b, 10000 Zagreb, Croatia
Bernardica MILINOVIĆ
; Ministry of Agriculture. Ul. Grada Vukovara 78, 10000 Zagreb, Croatia
Sažetak
The objective of this paper was to analyse allelopathic effect of 3 different aqueous solutions from tree of heaven’s (Ailanthus altissima (Mill.) Swingle) root extract and their dilutions on common wheat (Triticum aestivum L.), pigweed (Amaranthus retroflexus L.) and red bristlegrass (Setaria pumila L.). Investigated aqueous solutions obtained from tree of heaven’s root extract were root aqueous solution, aqueous solution with isolated ailanthone and root aqueous solution without ailanthone. Each of these solutions was diluted with water in ratio 1:4 and 1:16 before application on seeds of 3 test-plant species. Concentrated root and ailanthone aqueous solution and dilutions were equivalent to concentration of 0.48 mg/mL ailanthone. High allelopathic effect on radicle and shoot length of all test-species was proven for all investigated aqueous solution and their dilutions. Inhibitory effect on initial growth of all test-species was proportional to the increase in concentration in all treatments. The effect on initial growth was stronger in relation to the effect on germination of test-species. Lower concentrations caused stimulation of red bristlegrass germination. Pigweed was the most sensitive and common wheat the least sensitive test-species. The least significant effect was measured in the aqueous solution of isolated ailanthone.
Ključne riječi
allelochemicals; common wheat; dilutions; extrapolation; pigweed; red bristlegrass
Hrčak ID:
262599
URI
Datum izdavanja:
19.9.2021.
Posjeta: 530 *