Effect of Different Irrigation Water Salinity and Irrigation Interval on The Change of Total Protein Amount in Purple Carrot (Daucus Carota L) Plant

Aim: Plants are under the influence of environmental conditions from seed to

harvest. Many plant species are both stimulating these inconvenient conditions

and activating the defense system in order to keep alive. In this study, the

effects of irrigation water salinity and irrigation interval on total protein

amount of purple carrot plant were investigated.<o:p></o:p>

Material and Method: In this study, purple carrot plants were grown in 6 different irrigation

water salinity (To =0,38 dS/m, T1 =1,5 dS/m, T2 =3

dS/m, T3 =5 dS/m, T4 =7 dS/m, T5 =10 dS/m) and

3 irrigation intervals (4 day, 6 day, 8 day). Leaf samples were taken from the

plants grown under the different stress conditions and the total amount of

protein was determined.

Moreover, soil samples were taken from each pot for

the determining the soil salinity<o:p></o:p>

Conclusions: As a result of the study, it

was determined that due to the increase in irrigation water salinity increased

in soil salinity and decreased total protein amount of the plants. The increase

in the irrigation interval from 4 days to 6 days and 8 days; generally it was

observed more increase in soil salinity values. This result was caused in a

further reduction in the total amount of protein synthesized. A similar

relationship was found between plant yield and total protein. In the light of

this study, as a result of the stress caused by both salinity stress and

irrigation interval, the total protein amount affecting the yield in the plant

is important and if the protein synthesis is evaluated together with the

antioxidant enzymes which play a protective role, It is envisaged that the

stress mechanism can be analyzed, used to determine the optimum irrigation

interval and to plan yield estimates in limited irrigation studies.<o:p></o:p>