Effect of NaCl and Incubation Temperature on Seed Germination of Three Canola (Brassica Napus L.) Cultivars

(Sami Saad Abdul Rahim and hard p)

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Abstract

This investigation was performed to study the effect of NaCl concentration (50, 100, 150 and 200 mol/m3 NaCl, in addition to the control, i.e. distilled water) and incubation temperature (15, 25 and 35 oC) on seed germination percentage and germination speed of three canola CVs (Al-Serw4, Al-Serw 8 and Pactol). Salinity markedly affected seed germination percentage and speed of germination. The lowest incubation temperature degree (15 oC) was the best which recorded the highest seed germination percentage, while the highest incubation temperature degree (35 oC) recorded the lowest germination percentage. Meanwhile, the moderate incubation temperature (25 oC) was the highest in germination speed. Evaluated canola cultivars significantly differed in speed of germination. Al-Serw 8 recorded the highest germination speed. On the other hand, a slight and insignificant difference was noticed among cultivars in seed germination percentage, however Al-Serw 8 ranked the first in this concern
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