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J. Biosci. Agric. Res. | Volume 21, Issue 01, 1737-1748 | https://doi.org/10.18801/jbar.210119.212
​Article type: Research article | Received: 19.02.2018, Revised: 10.05.2019, Date of Publication: 25 May 2019.

Impact of salinity on seed germination and seedling growth of tomato

Shamima Nasrin and Md. Abdul Mannan
Agrotechnology Discipline, Khulna University, Khulna-9208, Bangladesh.

Corresponding Author: [email protected] (Shamima Nasrin). 

Abstract
Salinity reduces tomato seed germination and lengthens the time needed for germination. The seed rate will be increase in the soils where the electrical conductivity (EC) of a saturated extract was equal to or above 8 dS m−1. A study was conducted using fifteen genetically diverse genotypes under normal and salt stress conditions. The tomato genotypes were; 8 BARI varieties (BARI tomato-2, BARI tomato-8, BARI tomato-14, BARI tomato-15, BARI tomato-16, BARI tomato-17, BARI tomato-18 and BARI tomato-19) and 7 local varieties (Bonkim Ruby, Pusa Ruby, Suraksa, Patharkuchi, Ruma VF, Ruma 19 and Guli) were used as plant material. Although, tomato (Lycopersicon esculentum Mill.) was moderately sensitive to salinity but more attention to salinity is yet to be required in the production of tomato. In present study, germination (%), speed of germination, germination energy, germination capacity, seedling vigor index, fresh and dry weights of roots and root and shoot length, were the parameters assayed on five salinity levels. Increasing salt stress negatively affected germination and seedling growth. When salt concentration increased, germination of tomato seed was reduced and the time needed to complete germination lengthened. Among the varieties, BARI tomato 14 and BARI tomato 15 were found to be the more tolerant genotypes in the present study based on studied parameters.

Key Words: Salinity, Seeds, Germination, Seedling growth and Tomato

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Article Citations

​​MLA
Nasrin and Mannan. “Impact of salinity on seed germination and seedling growth of tomato.” Journal of Bioscience and Agriculture Research 21(01) (2019): 1737-1748.
 
APA
Nasrin, S. and Mannan, M. A. (2019). Impact of salinity on seed germination and seedling growth of tomato. Journal of Bioscience and Agriculture Research, 21(01), 1737-1748.
 
Chicago
Nasrin, S. and Mannan, M. A. “Impact of salinity on seed germination and seedling growth of tomato.” Journal of Bioscience and Agriculture Research 21(01) (2019): 1737-1748.
 
Harvard
Nasrin, S. and Mannan, M. A. 2019. Impact of salinity on seed germination and seedling growth of tomato. Journal of Bioscience and Agriculture Research, 21(01), pp. 1737-1748.
 
Vancouver
Nasrin, S and Mannan, MA. Impact of salinity on seed germination and seedling growth of tomato. Journal of Bioscience and Agriculture Research. 2019 May 21(01): 1737-1748.

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