Hastening Seed Germination of Cassia fistula
Hastening Seed Germination of Cassia fistula
Ashiq Ahmad and G. M. Khattak
ABSTRACT
Seed of cassia fistula, an ornamental flowering tree,
treated with concentrated sulphuric acid for 15 minutes
and 30 minutes and then thoroughly washed and soaked in
water for 24 hours before sowing, started germination
the next day and gave, with in 5 days 84 and 90%
germination, respectively. Soaking in acid for one hour,
followed by 24 hours soaking in water gave 76%
germination after 5 days. About 90% germination was
obtained in 20 days with acid soaking for 15 and 30
minutes not followed by water soaking. Hot water soaking
for 24 hours resulted in 26% germination in 5 days which
increased to 36% in 20 days. Soaking seed in hydrogen
peroxide for 15 minutes, 30minutes and one hour followed
by soaking in water for 24 hours gave, in 5 days 7, 8
and 11% germination, respectively. When soaking in
hydrogen peroxide was not followed by soaking in water,
germination was delayed by 5 days. Control and cold
water soaking for 24 hours gave only about 8%
germination in 20 days.
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September 1980
Vol. 30, Iss. 3
