RT Journal Article SR Electronic A1 Obeng, Isaac Kwame Essien T1 JF Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis YR 2017 VO 65 IS 2 SP 447 OP 463 DO 10.11118/actaun201765020447 UL https://acta.mendelu.cz/artkey/acu-201702-0008.php AB