The experiment was carried out to assess the germinability and seedling
growth rate of some treated vegetable seeds (i.e. onion, carrot, and tomato) with
aerated - aqueous solutions.
Seeds were treated for 24 hours with 0.1% of both succinic acid
and
nutrient solution, and the seeds to medium ratio was 1:5.
The soaking solution was continuously aerated by an air pump. At the end
of treatment, the seeds were dried up at room temperature to eliminate the
excess superficial moisture.
This study has been carried out using the onion and pepper seeds to
determine the effects of the aqueous medium temperature, during treatment
with oxygen, on the germination percentage seed vigor and for determining the
period needed for the treat
ment with the oxygen as well.
The treatment period has taken ١٢-٣٦ hours according to the kind of crop
and the medium temperature, which varied between ١٠-٣٠ °C.
Results of the study indicated that the treatment of seeds with oxygen, in an
aqueous medium, improved the germination percentage and the seed vigor. The
period needed for the treatment of the seeds with oxygen differs according to
the kind of crop and the temperature of the medium and varies between ١٨-٢٤
hours with respect to the onion seeds, and between ٢٤-٣٦ hours regarding the
pepper seeds. The period needed for treatment with oxygen decreases with the
rise of temperature.
