Allelopathic potential of Chinese rice flower (Aglaia odorata Lour.) as organic herbicide Laosinwattana C.1,*, Poonpaiboonpipat T.1, Teerarak M.1, Phuwiwat W.1, Mongkolaussavaratana T.2, Charoenying P.2 Department of Horticulture, Faculty of Agricultural Technology, King Mongkut's Institute of Technology Ladkrabang, Bangkok, 10520, Thailand. *Correspondence author: E. Mail: laosinwattana@yahoo.com
1Department of Horticulture 2Department of Chemistry Abstract The aqueous extracts of leaf and branches of Aglaia odorata inhibited the germination and seedling growth of barnyardgrass (Echinochloa crus-galli (L.) Beauv.) and wild pea (Phaseolus lathyroides L.) over the control. Besides its dry leaf powder (31.25, 62.5, 125 and 250 mg/plate) was more inhibitory to these parameters than aqueous extract. Furthermore, the inhibitory effects of dried leaf pellets of Chinese rice flower were more stronger than dried leaf powders at equal rates. The pellets applied at 0.5 ton ha−1 dose as soil surface mulch inhibited the seedlings emrgence of banyardgrass and wild pea by 67% and 2%, respectively. Thus the Chinese rice flower pellets has the potential to act as organic herbicide for control of barnyardgrass weed. Top Key words Aglaia odorata, allelopathy, aqueous extracts, barnyardgrass, Chinese rice flower, Echinochloa crus-galli, inhibition, leaf powder, organic herbicide, pellet, Phaseolus lathyroides, weed control, wild pea. Top |