العلاقة بين الاجتهاد المائي و السيلينيوم و هرمون البراسينولايد في بعض مؤشرات النمو الخضري و محتوى العناصر في نبات الكزبرة Coriandrum sativum L.

الملخص EN

The aim of study was to assess water stress for 2,8,14 days and spraying selenium at 0,10,20 mg/L-1 and brassinolide 0,1,2 mg/L-1 on vegetative growth and macro elements content (NPK) for Coriander (Coriandrum astivum L.) plant, The experiment was performed with Factorial Randomized Block Design (R.B.C.D) with three replicates .The results were summarized as follows: 1- The period of sever water stress for 14 days was passive effect on growth parameters.

2- The means of elements content NPK content was increased at moderate stress for 8 days.

3- The effect of selenium and brassinolide was positively to increase studied parameters.

4- Selenium and Brassinolide decreased water stress also the triple interaction between the severe stress at 14 days and the spraying the selenium and hormone was positive to decrease effect of severe stress.

Key Words : Water Stress, Selenium ,Brassinolide , Coriander