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Pak. J. Bot., 44(3): 873-878, 2012.

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EFFECT OF SALINITY AND ABA APPLICATION ON PROLINE PRODUCTION AND YIELD IN WHEAT GENOTYPES

JEHAN BAKHT^1*,  MOHAMMAD JAVED KHAN² , MOHAMMAD SHAFI³, MOHAMMAD AMAN KHAN⁴ AND MOHAMMAD SHARIF⁵

Abstract: The present experiment was conducted at Agricultural University Peshawar, Khyber Pukhtun Khwa Pakistan, to study the response of 6 wheat genotypes to foliar ABA applications and induced salinity stress for their proline production using completely randomized design (CRD) with three replications. Shoot proline contents were significantly (p≤0.05) affected by genotypes, salinity levels, ABA application and their all possible interactions. Maximum proline content and yield attributes were produced by SR-40 when compared with other genotypes under study. High salinity stress (10 dSm^-1) had a positive effect on proline synthesis of wheat genotypes. Exposure of plants to both salinity stress and foliar application of ABA resulted in elevated levels of proline and better yield when compared with other treatments.

¹Institute of Biotechnology and Genetic Engineering, KPK Agricultural University Peshawar, Pakistan

²Agricultural Research Institute Tarnab, Peshawar, Pakistan

³Department of Agronomy, KPK Agricultural University Peshawar, Pakistan

⁴Department of Biotechnology, Quaid-E-Azam University, Islamabad, Pakistan

⁵Department of Soil and Environmental Sciences, KPK Agricultural University Peshawar, Pakistan

*Correspondence author E-mail: jehanbakht@yahoo.co.uk