National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
The present study response of wheat and barley to fluoride toxicity.40 days old hydroponically grown plants were exposed to different levels of fluoride stress by supplementing normal Hoagland’s solution with 100 ppm (T1) and 200 ppm fluoride (T2) using NaF. Observations were recorded after 25 days of imposing fluoride treatments. In wheat and barley starch content in leaves increased with increased fluoride concentration in root zone. Soluble sugar content followed a decline trend in wheat but in barley it creased up to T1 level and then declined. In both crops soluble protein content declined but proline and free amino acid contents increased with increased fluoride concentration in root. In wheat malondialdehyde (MDA) content decreased significant in plants under T1 treatment, but further increased markedly at 200 ppm of NaF. In barley MDA content increased progressively and significantly as the level of NaF increased. As compared to barley, 100 ppm fluoride was lesser toxic to wheat for measured parameters while at 200 ppm both crops were equally sensitive to fluoride toxicity. It is opined that MDA content may be taken as a parameter to identify fluoride toxicity tolerant and sensitive crops.
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