1 Citrus Research Station (CRS), Tamil Nadu Agricultural University (TNAU), Vannikonenthal, Mannur Taluk, Tirunelveli, Tamil Nadu, India.
2 Indian Cardamom Research Institute, Myladumpara, Kerala, India
3 Department of Plant Pathology, Faculty of Agriculture, Annamalai University, Annamalai Nagar, Tamil Nadu, India
4 Rice Research Station, Tirur, Tamil Nadu, India
5Horticulture College and Research Institute, TNAU, Paiyur, Tamil Nadu, India
6Horticultural Research Station, TNAU, Pechiparai, Tamil Nadu, India.
DOI : https://doi.org/10.21276/AATCCReview.2024.12.03.330
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Abstract
Seaweeds are the essential plant growth bio-stimulants due to their high composition of phenols, flavonoids, polysaccharides and antioxidant compounds. Seaweed extracts stimulated the seed yield, seed germination, plant growth parameters, biometric attributes, thousand grain weight, plant height, protein and fat composition in Agricultural and Horticultural crops which were increased. Foliar application, soil application or seed treatment of seaweeds against various phytopathogens including biotic such as fungi, bacterial, nematode and mesobiotic pathogens like viral diseases as well as insects has been confirmed by many scientific reports. They are mostly used as a powder and some times available also as a liquid form. They are having the mode of action of inducing systemic resistance, bio-protectant activity by induced or combined activity of microbial biota and enhancing crop yield. This review explains about the role of seaweed extracts for plant diseases management strategies.