Santi, Laksmita Prima and Haris, Nurhaimi and Mulyanto, Djoko (2017) Effect of bio-silica on drought tolerance in plants. INTERNATIONAL BIOTECHNOLOGY CONFERENCE ON ESTATE CROPS 2017. pp. 2-8.
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Abstract
Drought is considered the single most devastating environmental stress, which
decreases crop productivity more than any other environmental stresses. The main
consequences of drought in crops are reduced rate of cell division, leaf size, stem elongation,
root proliferation, disturbed stomatal oscillations, plant water and nutrient relations with
diminished crop productivity. Many studies demonstrated that the deposition of silica in plant
tissues can reduce drought stress. Silicon (Si) has beneficial effects on many crops, mainly
under biotic and abiotic stress. Despite its abundance, silicon is never found in plants in an
available form and is always combined with other elements, usually forming oxides or
silicates. Monosilicic acid (H4SiO4) is the form of silicon used by plants, which is found both
in liquid and adsorbed phases of silicon in soils. The concentration of the H4SiO4 in soil
solution is influenced by the soil pH, clay, minerals, organic matter and Fe/Al
oxides/hydroxides, which are collectively related to the geological age of the soil.
Furthermore, to improve plant-available Si in the soil, silicate solubilizing microorganisms
(SSM) are potentially useful in solubilizing insoluble forms of silicate. This paper aimed to
review an important issue of bio-silica effects on plants under drought stress and water
deficiency.
| Item Type: | Article |
|---|---|
| Subjek: | S Agriculture > SB Plant culture |
| Divisions: | x. Faculty of Engineering, Science and Mathematics > School of Engineering Sciences |
| Depositing User: | S.kom DINA SYAHFITRI |
| Date Deposited: | 28 Jan 2019 02:26 |
| Last Modified: | 28 Jan 2019 02:26 |
| URI: | http://eprints.upnyk.ac.id/id/eprint/18213 |
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