Abstract

For a long time, roses have been the most popular cut flower
in the world. Numerous diseases have been seen in these
plants, the most important of which is Dieback. Some
greenhouses are infected with this disease to a great extent
and the economic damage is very high. Studies on this
disease have been very limited and the study and
identification of these pathogens as a first step in the
management of this disease seems necessary. Common
methods of managing this disease are both non-chemical
and chemical, but these methods are not very effective. One
of the strategies for managing diseases is to biologically
control them using antagonist microorganisms. The
interaction between plants and microorganism helps plants
to be in the process of ecosystem recovery. These
interactions can increase the plant's ability to utilize soil
nutrients by increasing root development, nitrate uptake, and
inhibition of soil pathogens. Many endophytes have inhibitory
properties against pathogens such as fungi and bacteria.
Endophytes seem to be promising alternatives to fertilizers
and chemical pesticides in an organic and sustainable
farming system. In this case, there will be no need for
repeated spraying, pollution will be minimized and costs will
be significantly reduced. To do this, after isolating and
identifying the pathogens and proving their pathogenicity using
Koch principles, also Isolation and study of Inhibition effect of
Rose Endophytes as opposed to these causal agents in in-vitro
condition using the dual culture method, The endophytes that
form the Inhibition effect are isolated and identified as biological
control agents. Due to the non-applicability of chemical
methods, we should try to greatly reduce the possibility of
developing this disease by soaking rose cuttings with
endophytes.