ALGAE (NORMAL AND NANO): CHARACTERISTICS, ECONOMIC IMPORTANCE, AND ROLE IN PLANT RESISTANCE OF DISEASE: A REVIEW

Abstract

This study aimed to know the algae in terms of its spread, distribution and classification as well as its economic and environmental importance. Also, it clarified its great role in promoting plant growth, as studies have shown that the application of algae to the soil improved its retention of moisture, provided it with nutrients and substances stimulating for plant growth, increased the plant’s ability to resist stress, reduced the destruction of chlorophyll and improving of yield. Also, the spraying of some types of algae extracts increases the plants’ tolerance to stress and thus increases weight and yield. Algae are a source of many bio-organic substances, growth-regulating hormones, vitamins, carbohydrates and antioxidants, thus improving plant growth parameters, as well as its role in inhibiting the growth of pathogens and reducing the incidence and severity of disease for many pathogens.

Keywords

• algae
• nanotechnology
• plant growth