Topal Süleyman, Kocaçalişkan Ismail, Arslan Orhan
Section of Botany, Department of Biology, Faculty of Arts and Sciences, Dumlupinar University, Kütahya, Turkey.
Z Naturforsch C J Biosci. 2006 Jan-Feb;61(1-2):69-73. doi: 10.1515/znc-2006-1-213.
Catechol is an allelochemical which belongs to phenolic compounds synthesized in plants. Its herbicidal effects on weed species; field poppy (Papaver rhoeas), creeping thistle (Cirsium arvense), henbit (Lamium amplexicaule) and wild mustard (Sinapis arvensis) were investigated using wheat (Triticum vulgare) and barley (Hordeum vulgare) species as control plants. In comparison to 2,4-D (a common synthetic herbicide), 13.64 mM of catechol have been found to have a strong herbicidal effect, as effective as 2,4-D on field poppy weed by killing it, and a suppressive herbicidal effect on the other weeds by inhibiting their growth significantly. Concerning all the weeds, in general, elongation of the shoot was affected more negatively than that of the root. Fresh weights of the weeds were decreased by catechol significantly only in field poppy but not in other weeds. The study reveals that catechol is a potent inhibitor of growth of the weeds and therefore it can be evaluated as a herbicide for future weed management strategies.
儿茶酚是一种化感物质，属于植物合成的酚类化合物。以小麦（普通小麦）和大麦（大麦）作为对照植物，研究了儿茶酚对杂草物种的除草效果，包括野罂粟（虞美人）、田蓟（田蓟）、宝盖草（宝盖草）和野芥菜（野芥菜）。与2,4 - D（一种常见的合成除草剂）相比，已发现13.64 mM的儿茶酚具有很强的除草效果，对野罂粟杂草的除草效果与2,4 - D一样有效，通过杀死野罂粟杂草，对其他杂草则通过显著抑制其生长而具有抑制性除草效果。总体而言，对于所有杂草，地上部分的伸长受到的负面影响比根部更大。儿茶酚仅使野罂粟杂草的鲜重显著降低，而对其他杂草则没有影响。该研究表明，儿茶酚是杂草生长的有效抑制剂，因此可作为未来杂草管理策略中的一种除草剂进行评估。
