استجابة شتلات الثويا الشرقية Biota oreintalis Endl لتراكيز مختلفة من السماد العضوي و حامض الجبرليك (GA3)‎ رشا على المجموع الخضري

الملخص EN

This study has been conducted at the nursery of Forestry Department , College of Agriculture and Forestry , Mosul University , Mosul , Iraq.from the beginning of march until the end of December , 2012.

This study was to investigate the effect of concentrations of organic manure (zero , 1, 2 gm/l) and the concentrations Gibberellic Acid (zero , 20 ,40 mg/l) and sprayings occation (two and four) on the growth of Biota oreintalis Endl.

seedlings.

The following characters were studied: increase of growth length (cm), Stem diameter (mm), increase of number of branches per seedling , Main root length (cm) , Main root diameter (mm).

So results can be summarized as follows: