Mohammad Naghi Padasht Dahkaei

Horticulture Crops Research Department, Gilan Agricultural and Natural Resources Research and Education Center, AREEO, Rasht, Iran

[ 1 ] - The Effect of Silicon on the Growth Traits and Resistance of Zinnia (Zinnia elegans Jacq.) to Powdery Mildew Disease

To investigate the effects of silicon on the growth characteristics and the reduction of the powdery mildew damage to Zinnia (Zinnia elegans Jacq. ʻMagellanʼ), an experiment was carried out as a factorial experiment in the form of a randomized complete block design with two factors including eight treatments and three replications. The first factor included silicon concentrations at four levels...

[ 2 ] - دورگ‌گیری بین‌گونه‏ای سوسن چلچراغ و ارقام تجاری لیلیوم با روش گرده‎افشانی خامه قطع‌شده و کشت قطعات تخمدان

در این پژوهش،کارایی استفاده از روش گرده‏افشانی خامه قطع­شده و کشت قطعات تخمدان جهت غلبه بر موانع ناسازگاری پیش‎تخمی و پس‎تخمی لیلیوم مورد ارزیابی قرار گرفت. سه رقم از گونه‎های آسیایی (ترسور، پیراندلو و سب دازل) و چهار رقم از گونه‎های اورینتال (ریالتو، سوربونه، پارادرو و مانسیا) به­عنوان والد مادری و گونه Lilium ledebourii(سوسن چلچراغ) به­عنوان والد دهنده دانه گرده با دو روش گرده‎افشانی عادی و گ...

[ 3 ] - Effect of nutrient solution and Azolla and rice straw mixed compost on nutrition and growth of Dieffenbachia amoena in potting medium

This experiment was performed to investigate the effect of Azolla and rice straw mixed compost in peat substitution on Dieffenbachia amoena. Factorial experiment based on a completely randomized design with two factors of nutrient solution in 2 levels (1- without solution, 2- with 130 mg N/ l, 32 mg P /l and 117 mg K/ l) and 5 levels of Azolla and rice straw mixed compost (zero, 15, 30, 45 and ...