Allelopathic Effect of Moringa oleifera L. Aqueous Extract on the Germination and Seedling Growth of Okra (Abelmoschus esculentus L.)
Allelopathic Effect of Moringa oleifera L. Aqueous Extract on the Germination and Seedling Growth of Okra (Abelmoschus esculentus L.)
Mahisba Waris1, Muhammad Azim Khan2*, Muhammad Fawad1*, Nabeela Jafer1, Rashid Hussain3 and Haseeb Ahmad3
ABSTRACT
A lab study was carried out to determine the effect moringa leaves aqueous extract on germination of okra at Herbarium Lab, Department of Weed Science and Botany, The University of Agriculture, Peshawar. Dried leaves of Moringa were purchased from local market. The leaves were chopped by using a grinder and 50grams of dried leaves powder was added with 500 milliliters of distilled water in a beaker. Subsequently, the mixture was passed through muslin cloth and various concentration was prepared (25%, 50%, 75%, and 100%). Statistical analysis of data reveal that various concentration of moringa aqueous extract significantly affected germination indices of okra seeds with highest germination (93.3%), followed by germination energy (93.3%), germination rate index (22.7), and the mean germination rate (0.245) observed in the control. In addition, the mean germination time was short but exhibited a maximum control level of 4.1 days. At the 25% concentration, the germination was (80%), and germination energy (73.3%), being remarkably the lowest, while the germination rate index (18.2) and mean germination rate (0.24) are considerably lower in comparison to the control. It was further reveal that 50% concentrations resulted (76.7%) germination and (76.7%) germination energy, mean germination rate (0.227) and a mean germination time (4.4 days). Likewise, at 75% concentration, a substantial decline in the germination (43.3%) and germination energy (40%) was observed, with lowest mean germination rate (0.208) and highest mean germination time (4.8 days). Contrary concentration of 100% moringa aqueous extract caused maximum inhibition with (0%) germination, mean germination rate and shoot length. Seed vigor index and germination inhibition of the seeds ranged from 0 and -100%, respectively. Highest coefficient of velocity for both germination and shoot length was observed at 75% concentration, whereas, germination was completely inhibited at 100% concentration at 100% concentration. It is concluded that moringa extract at lower to moderate levels stimulate germination and seedling growth of okra, whereas at high concentration cause severe inhibition of okra seeds.
To share on other social networks, click on any share button. What are these?
