PPT ON EVALUATION IN PLANT UNDER SODIUM CHLORIDE STRESS
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1. EVALUATION IN PLANT UNDER SODIUM CHLORIDE STRESS 2. What is stress ?
Stress can be defind as any change in environmental condition that reduce the plant growth.
3. Types of stress
Biotic stress- The stress in plant is caused by any living ;disease causing organism, is called abiotic stress. Abiotic stress- The stress in plant is caused by non living factors, is called abiotic stress.
4. Salinity stress
Salinity is defind as the occurrence various concentration of salts in soil or water that may interfere the normal growth of the plant. Presence of salts in lower concentration results in relatively lower growth rate, however presence in higher amounts may result in complete death of the plant. The problem of salinity is present in the high temperature area ( arid and semi arid region).
5. Benefits of abiotic factors
Stress as a positive point in plant’s life , it is a situation where abiotic stress plays a constructive role in ecosystem. Stress resistance mechanism can be grouped into two general categories- Avoidance mechanism Tolerance mechanism
6. OBJECTIVE
In the desert area of Rajasthan, the two major environmental factors that currently reduce the plant growth that are drought and salinity. So our aim was to study the influence of salinity on germination and growth of Subabul seeds (Leucaena leucocephala ) and onion bulb (Aillum cepa) at the different concentration of sodium chloride (NaCl).
7. Plant material
Seeds of subabul (Leucaena leucocephala ) Root tips of onion bulb (Aillum cepa)
8. Morphological parameters
In the morphological parameters, we analyzed the morphological growth of subabul seeds under different salt concentration. SEED GERMINATION ROOT SHOOT LENGTH
9. Biochemical parameters
In the biochemical parameters, analyzed the protein estimation using Bradford’s dye binding method. The Bradford method is a colorimetric protein binding assay, it is based on absorbance in the dye commassie brillent blue G- 250 (CBBG- 250). In this method, the commassie dye is previously in red color but when it binds to protein it changes its color to blue.
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