Role of Silicon in Alleviating Biotic and Abiotic Stresses in Plants 1 Speaker : Rakesh Sharma ID. 48030 M.Sc. Ag Deptt. of Plant Physiology GBPUAT,PANTNAGAR
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Silicon importance on Aliviating Biotic and Abiotic Stress on crop plants
Role of Silicon in Alleviating Biotic and Abiotic Stresses in Plants1
Speaker : Rakesh SharmaID. 48030 M.Sc. AgDeptt. of Plant PhysiologyGBPUAT,PANTNAGAR
1
INTRODUCTIONAvailable form: Silica dioxide
At room temperature silicon exist in two forms
Crystalline Amorphous
Figure: Mono & polysilicilic acids
Chemically active and available form of Si in soil areMonosilicic acid Si(OH)4Polysilicic acid
Concentration range between 0.1mM - 0.6mM (Epstein, 1994)
SILICON IN SOIL
ABUNDANCE IN SOIL
3/13/20165Fig .Distribution of element in earth crustSommer et al 2006
SILICON IN PLANTS
Concentration of Si in plants on the basis of dry weight varies between 0.1 - 10%.
High concentration in monocot
Its level increased from legumes
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