Dataset of allelopathic effects of Casuarina equisetifolia-L leaf aquatic extract on seed germination and growth of selected plant crops

Casuarina tree is used typically as windbreaks in farms that surrounded by dunes. Moreover, it can play a significant role in inhibiting nearby vegetation growth. In this dataset, Allelopathic effect of Casuarina equisetifolia-L on germination of four selected plant crops (Maize, lentil, Mustard, and Wheat) was studied. Lab and field experiments were conducted to study the allelopathic effects of Casuarina equisetifolia leaf on seed germination and seedling growth. Various concentrations of leaf extract were prepared and used (0, 1.25%, 2.5%, and 5%) in the lab experiment. While in the greenhouse, leaf powder was mixed with soil at concentrations of (0, 15, 30 and 45 g.kg-1 soil). Results revealed that aqueous leaf extract of Casuarina equisetifolia-L affected significantly on seed germination of all selected plant crops under laboratory condition. It was observed that inhibition of 5% was high compared with the control. In addition, the findings showed that leaf extract of Casuarina had a maximum inhibitory effect on root growth more than shoot of the studied seedling. Greenhouse experiments demonstrated that C. equisetifolia exhibited significant allelopathic activity on wheat germination based on all treatments. However, Casuarina leaf extracts presented a positive effect on Mustard germination and growth, while Wheat seeds were negatively affected by all treatments. The pH and the electrical conductivity (EC) of soil were examined with a relative reduction in pH and marked an increase in (EC). Casuarina tree exhibited a relatively negative effect on the selected plant crops.