Advanced Journal of Seed Science and Technology ISSN: 2812-3425  Vol. 5 (5), pp. 162-167, December, 2018.   © Advanced Scholars Journals

Full Length Research

Allelopathic Potential of Niger (Guizotia abyssinica L.) on Parthenium hysterophorus Seed Germination and Seedling Growth

Habtamu Ashagre¹*, Teferi Tolesa² and Ibrahim A. Hamza³

¹ College of Agriculture and Veterinary Sciences, Ambo University, P. O. Box 19, Ambo, Ethiopia.

² Elfeta District Agricultural Office, West Shewa Zone, Oromia National Regional State, Ethiopia

³ School of Agriculture and Agricultural Technology, Federal University of Technology, Minna, Nigeria

*Corresponding author E-mail: [email protected]

Accepted 13 December, 2018.

Abstract 

To determine the allelopathic effect of Guizotia abyssinica on Parthenium hysterophorus, a laboratory experiment was under taken in Weed Science Research Unit of Plant Protection Research Center, Ambo, Ethiopia. Leaf, root, and stem extracts with 15, 30, 45, 60 and 75 percent levels of concentrations were used for the experiment. Control check was treated similarly with distilled water. The experiment was arranged factorially in a complete randomized design. The results indicate that stem and root aqua’s extracts significantly affect germination percentage, root length, shoot fresh and dry weight, and root fresh weight of Parthenium hysterophorus (p<0.05). Thus, the allelopathic effect of Guizotia abyssinica on Parthenium hysterophorus is concentrated in stem and root of the plant. However, leaf parts extract have less inhibitory effect. Increase in the level of concentration extract significantly reduced all germination and growth parameters of Parthenium hysterophorus. Higher concentrations (³ 60%) have maximum deleterious effect on P. hysterophorus seed germination and growth parameters.

Keywords: Allelopathy, germination, Guizotia abyssinica, Parthenium, seedling growth.