A Study on Proline and Glycine Betaine Contents as Salinity and Drought Tolerant Indicators in Capsicum Annuum L. (Cultivar: Roma).
In this research, accumulation of free proline and Glycine betaine contents was investigated in Solanum lycopersicum L. in response to environmental stress (drought and salinity). After salt and drought treatments in the field the plant samples both stressed and unstressed were used to evaluate the level of free proline and Glycine betaine contents. Proline and Glycine betaine content increase significantly (P<0.05) with increasing salt concentration in a concentration dependent manner. However, the result did not differ significantly among drought induced plants. The low level of proline and Glycine betaine contents produce by the plant induced with salinity and drought is a possible indicator of water deficit and salt tolerant in Solanum lycopersicum (cultivar: Roma).
