تلخیص
Soaking of cotton seeds prior to sowing and then rubbing in ash is a common practice to -facilitate germination under adverse soil conditions. But little has been reported of the effects of various presowing soaking treatments on germination. This study therefore, evaluated the effects' of various presowing seed treatments on germination of cotton. Treatments comprising of calcium sulphate, concentrated and dilute sulphuric acids were used in different quantities and durations. All presowing soaking treatments not only improved germination percentage but also accelerated the rate of germination. Soaking seeds (lOOg) for 10 minutes in reagent grade sulphuric acid gave better germination than control. Among the rates used, 20 ml concentrated acid lOOg seed was the best dose for soaking seed. In another study, 50 ml acid used for soaking under various dilutions (L8, 4.5, 9.0 and 13.5 mM sulphuric acid) gave best germination. Soaking of seeds for 30 minutes in this study was the optimum time except the case where seeds were soaked for 60 minutes in 4.5 mM acid. Of the various dilutions used for soaking seeds, 4.5 mM acid was good. Soaking seeds in gypsum solutions, stimulated germination and increased germination percentage more than any other chemical used. Maximum germination of 94% was obtained when seed soaking in 10 mM CaSOi-lH-fi was done for two hour
M.Yasin*,, A. Rauf**, Amjad Javid* . (1995) COMPARISON OF VARIOUS PRESOWING SEED TREATMENTS ON GERMINATION OF COTTON, The Journal Soil & Environment , Volume 10, Issue (1-4).
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