Zahra Solatni, Farid Shekari, Khalil Jamshidi, Reza Fotovat and Roghaye Azimkhani
Department of Agronomy and Plant Breeding, Faculty of Agriculture, Zanjan University, Zanjan, Iran
Key words: Silicon, salinity stress, canola, germination.
Abstract
The effects of salinity and supplemental silicon on germination and some seedling traits of canola, cv. Talayeh was investigated in a complete randomized block design. The first factor was 5 levels of potassium silicate (0, 1, 2, 3 and 4 g/l) and different levels of salinity as second factor (including 0, 60, 180, 120, and 250 mM NaCl). Results showed that radicle length, plumule length, radicle dry weight and plumule dry weight influenced by salinity and silicon. The highest germination percentage, germination ratio and the lowest mean germination time were observed in non saline treatment. Application of 2 g/l treatment of silicon showed the highest value for germination percentage and germination ratio and the lowest one for mean germination time compared to other treatments. Moreover, 2 g/l treatment of Si with 60 mM concentration of NaCl led to highest length of radicle and plumule. Salinity had significantly negative effect on the all studied characteristics, but application of supplemental Si improved those traits. The lowest means among treatments was in 180 and 250 mM concentration of salinity in non-Si treatment. application of Si showed no significant effect at higher concentration.
Get the original articles in Source: Volume 2, Number 10, October 2012 – IJAAR
Journal Name: International Journal of Agronomy and Agricultural Research (IJAAR)
Published By: International Network for Natural Sciences
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