The study the Effect of Salinity on Some Physiological Parameters of Catharantus roseus
The study the Effect of Salinity on Some Physiological Parameters of Catharantus roseus
Matin Arefifard,1,*Mohammadmahdi Rahiminasab,2Maryam Nazmabadi,3Behnam Rafiee,4Shayan Mohammadi Tabatabai,5
1. Iran, Arak, Arak University, Azad Arak Univdrsity, Club of researchers and young elites 2. Arak Payam Noor University, Arak, Iran 3. Arak University, Arak, Iran 4. Shahrekord university . Pathobiology Department . Shahrekord .Iran 5. Arak Payam Noor University, Arak, Iran
Introduction: Plants, in their life cycle, are usually exposed to various kinds of abiotic stresses including salinity which affects many physiological parameters of plants. Studies have shown that change in the planting conditions can affect the qualitative and quantitative features of Catharantus roseus; therefore, creating stressful conditions (e.g., salinity) can be an effective way to investigate the changes.
Methods: In this research, the effect of 0, 25, 50, 100, 200 mM density of NaCl on degree of growth factors, catalase activity, amount of proline accumulation, Na/K content and photosynthetic parameters on seeds of pink variety of this plant was investigated.
Results: The results showed that degree of catalase activity, the amount of proline accumulation increased in plant under NaCl treatment, especially at high densities, while the total protein decreased. The NaCl stress also affected photosynthetic parameters, and decreased the amount of pigments, as well as the photosystem II efficiency.
Conclusion: The length, the wet and dry weight and the amount of Kin the plant shoot decreased while the length and the amount of Na in the root increased.