Anti-herbivore activity of soluble silicon for crop protection in agriculture: a review
2021
Murali-Baskaran, Ramasamy Kanagaraj | Senthil-Nathan, Sengottayan | Hunter, Wayne Brian
Silicon (Si) is considered an important component for plant growth, development, and yield in many crop species. Silicon is also known to reduce plant pests. Although Si, the major component of soil next to oxygen, it is not used as a major nutrient by crop plants. However, extensive literature demonstrate the beneficial effects of soluble silicates, like silicon [orthosilicic acid (Si(H₄SiO₄)], on reducing biotic stress in crop ecosystems. In general, monocots tend to accumulate substantially more Si in plant tissues than dicots. Si accumulates in plant cell walls, providing protection by increasing the synthesis of lignin and phenolic compounds and activating the endogenous chemical defenses of plants including volatile and non-volatile compounds and other physical structures like trichomes. This review provides an overview of the history of silicon use in agriculture in India, for the management of insect pests. The future research needs in this field of study are also presented.
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