تأثير الرش الورقي بحامض الأسكوربيك في بعض صفات النمو الخضري لشتلات الثويا الغربي Biota occidentalis L.

Abstract EN

This study was carried out in the nursery of the Department of Forestry / College of Agriculture and Forestry / University of Mosul for the period from March 2018 to November 2018 with the aim of stimulating the growth of Thuja occidentalis L.

seedlings and finding natural non-polluting alternatives to the environment and low cost, through spraying the vegetative total For Thuja occidentalis seedlings with three concentrations of ascorbic acid (0, 500, 750 mg / L) as well as the effect of the number of sprays (2 and 4 sprays).

The experiment was conducted using RCBD design (3 * 3 * 2) and the results of the experiment were analyzed By using SAS software and comparing the levels of factors and overlapping coefficients to choose the best according to the Duncan polynomial test and below the probability level 0.05 % .