Document Type : Research Paper

Authors

• Reza Bagheri
• Hamideh Heydari Gharaie

Abstract

To study the allelopathic effect of Cymbopogon olivieri on germination and growth properties of two millet cultivars, an experiment was carried out in a completely randomized design (CRD) with three replications. The treatments included different levels of 0 (control), 12. 5, 25 and 50 gL^-1 extract.  In another experiment, carried out in the greenhouse, the treatments included four levels of soil. According to the obtained results, all studied traits of kcm₇ cultivar were more affected by allelopathic effect of Cymbopogon olivieri, compared to kcm₂ cultivar, and all traits (except germination velocity) showed a negative response, immediately after applying  12.5 gL^-1 extract. In kcm2 cultivar, the negative response of germination percentage and germination velocity was recorded at 50gL^-1 extract. In addition, the negative effect of plumule length and radicle length was recorded at 12.5 gL^-1 and 25 gL^-1, respectively. The results of greenhouse showed that the radicle length of both cultivars was affected by allelopathic effects of Cymbopogon olivieri. Our results clearly show that kcm₂ cultivar is more resistant against the allelopathic effects of Cymbopogon olivieri compared to kcm₇ cultivar.

Keywords

• Allelopathy
• germination
• Cymbopogon olivieri
• aquatic extract
• kcm
• 2 7 millet