تأثير الإجهاد المائي و المخصب العضوي Azomin في بعض مؤشرات نمو نبات حلق السبع الشجیري Adhatoda vasica (L.)‎ Nees

Abstract EN

This experiment was conducted in Faculty of Science-Biology Department-University of Al-Qadisiya from the period of 1/4 to 1/8/2013.

The goal of the experiment was to study the effects of water stress and organic fertilizer (Azomin) on some growth parameters of Adhatoda vasica (L.) Nees.

Experiment included twenty four transplants (age of one month and 8 cm height) that were transplanted in plastic pots with 10 kg.

soil (one transplant per pot) in 1/4/2013 .

Pots were filled with sandy soil and peatmose 2:1 v/v.

Plants Irrigated with two levels 50 and 25% of field capacity.

Organic fertilizer was also used with irrigation water at three concentrations (0, 4 and 8) ml.L-1 twice on 1/5/2014 and 15/6/2014.

The results showed that increasing the level of water stress caused a significant decrease in the rate of dry weights of shoots and roots, leaf area, total chlorophyll and the percentage of nitrogen, while it caused a significant increase in the concentration of proline in leaves from 0.141 to 0.151 mg.gm-1 and the percentage of vitamin C in leaves from 1.536 to 1.827% and in roots from 4.355 to 5.105% , on the other hand increasing the concentration of organic fertilizer caused the opposite effect to the effect of water stress .