Evaluation of bioherbicidal potential of Carica papaya leaves.

Evaluation of bioherbicidal potential of Carica papaya leaves. Braz J Biol. 2019 Oct 21;: Authors: Anwar T, Qureshi H, Parveen N, Bashir R, Qaisar U, Munazir M, Yasmin S, Basit Z, Mahmood RT, Nayyar BG, Khani S, Khan SA, Qureshi MM, Wali M Abstract Due to increased number of herbicide resistant weeds, it is needed to explore the allelopathic potential of plants as an alternative. The research was conducted to investigate allelopathic effects of Carica papaya L. leaf powder and aqueous extract on seeds as well as pre-germinated seeds of Avena fatua L., Helianthus annuus L., Rumex dentatus L., Zea mays L. and Triticum aestivum L. on filter paper and soil in Weed Management Program Laboratory, Department of Plant and Environmental Protection at PARC Institute of Advanced Studies in Agriculture, National Agriculture Research Centre, Islamabad, Pakistan. Germination percentage (%), radicle length (cm) and plumule length (cm) were parameters observed for 'Plant leaf powder bioassay' and 'Aqueous extract method'. Most significant growth inhibition was observed in A. fatua seedlings in filter paper method. A. fatua radicle length was reduced by C. papaya aqueous extract (80%) and leaf powder (89%) bioassays. Plumule length was reduced under the influence of aqueous extract (57-73%) and powdered material (59-77%). The inhibitory effects on other test species were in sequence of H. annuus followed by Z. mays and R. dentatus. The aqueous extrac...
Source: Braz J Biol - Category: Biology Authors: Tags: Braz J Biol Source Type: research