في النمو (Glycyrrhiza glabra )‎ أثر الرش بعنصر الزنك و مستخلص جذور عرق السوس ( Iris xiphium L.)‎ الخضري و الزهري لأبصال الإيرس الأسباني

Abstract EN

This research was conducted in a private nursery (Worood Al-Najaf nursery) in Najaf city during the 2008 / 2009 season to study the effect of zinc and liquorices root extract and their interaction on growth and flowering of Spanish iris (Iris xiphium L.).

Factorial experiment was conducted in (3x3), first factor is three concentrations of Zinc (0, 15، 30 mg.L-1), second is three concentrations of Liquorice root extract (0, 1.5, 3g.L-1) in a randomized complete block design (R.C.B.D) with three replicates.

Results showed that spraying plants with a combination of 30 mg.L-1 Zn and 3 g.L-1 liquorice root extract significantly increased leaves number and area, total leaf chlorophyll contact، diameter of flower stem and leaf content of carbohydrate، zinc and gibberellin concentrations compared with unsparing bulbs which gave the lowest values.

The height average flower stem length, flower shelf life and leaf content of gibberelin were 20.9 cm, 9.3 days and 4.9 mg.kg-1 as compared with 18.0 cm, 7.6 days and 3.7 mg.kg-1, respectively, in control plants.