Authors
1
College of Agriculture, University of Kirkuk, Iraq
2
Department of Horticulture, College of Agriculture, University of Kirkuk, Iraq
,
Document Type : Research Paper
Abstract
This study was conducted in a private nursery in Kirkuk Governorate during the growing season 2023-2024 on Damask Rose (Rosa damascene Mill).The plants were treated with media that consisting (Loamy soil +Sawdust) with three levels (0,5,10%) and biofertilizer (Azotobacter chroococcum) with four concentratios (0,8,16,24 g pot-1) which applied in three doses (2023/3/15 ,2023/9/15 ,2024/3/15). The experiment established according to Randomized Complete Block Design (R.C.B.D). The results showed that, the use of culture media with (10% saw shavings) led to a significant increase in leaves total chlorophyll content, anthocyanin pigment assessment in flower petals ,leaves nitrogen percentage, leaves phosphorus percentage and leaves potassium percentage compared with control treatment.Bio-fertilizer application with 24 g pot-1 led to significant difference in leaves total chlorophyll content, anthocyanin pigment assessment in flower petals, leaves nitrogen percentage, leaves phosphorus percentage and leaves potassium percentage compared with control treatment , when compared to the control characteristic, the following traits showed(leaves total chlorophyll content, leaves nitrogen percentage, leaves phosphorus percentage and leaves potassium percentage) notable variation as a result of the two-way interaction between the biofertilizer and culture media (24 g pot-1 +10% ).
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