PJB-2007-285
PHYSIOLOGICAL RESPONSES OF RICE (ORYZA SATIVA L.) TO SALINE STRESS
AISHA SHEREEN, R.U. ANSARI, S. YASMIN, S. RAZA, S. MUMTAZ, M.A. KHAN AND S.M. MUJTABA
Abstract
A water culture experiment was conducted to study the physiological responses of salt tolerant and salt sensitive inbred lines of rice. Different growth and physiological attributes including ion uptake and synthesis of proline were studied after an exposure of two weeks salinity treatments (50 and 75mM NaCl along with non-saline control). The studies revealed that growth at early seedling stage was very sensitive. Data on ions uptake and proline contents of shoot revealed that in tolerant lines there was a less uptake of Sodium and higher production of proline contents in comparison to sensitive lines. A significant positive correlation was found between shoot Na and proline contents.
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