الفهرس 
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Abstract
The effect of three growing media types (peatmoss , peatmoss+sand and peatmoss+sand+clay) and five fertilization treatments(control , mineral NPK , humic acid , E.M and humic acid +E.M ) on growth and flowering of Gardenia jasminoides was investigated during two successive seasons 2014 and 2015 under greenhouse conditions .
The peatmoss growing media was superior to the other types in increasing plant height , stem diameter , branch and leaf number/plant, leaves and roots dry weights / plant , as well as, number and fresh weights of flowers / plant and in producing earlier flowers . In the second place came peatmoss + sand , while peatmoss + sand + clay gave the least values of all these traits and produced the the most delayed flowers of Gardenia.
Concerning fertilization treatments , the combined treatment of humic acid plus E.M produced the best vegetative and flowering characters like that of NPK treatment ,while each of humic acid or E.M alone gave lesser values . Moreover , the three teste treatment of humic acid and /or E.M caused early flowering date ,while NPK produced late flowering in comparison with untreated plants .
The overall best vegetative growth and flowering aspects in addition to early flowering date were given due to planting Gardenia jasminoides plants in peatmoss plus sand and fertilizing them with humic acid plus E.M.