i am wating for your help me

Hi: The first picture is magnesium or Fe or Manganese deficiency, the second is nitrogen deficiency

Dear Elaheh Gerami

In the second picture, it is clear on the new leaves, deformation, suggesting viral infection, you easily try the inoculation to healthy plant

Regards

Prof. Houda Kawas

 Thanks for your quick reply. i really appreciate it if you  could tell me what name of virus is? i think this is cucumber mottling virus.

It is not virus infection,

It is mineral deficiency, for the second picture look like a nitrogen deficiency

Dear Elaheh Gerami

This is the part of your picture not by mineral deficiency, several viruses could cause this symptoms, the diagnosis process with inoculation to healthy plants, indicator plants,  ELISA...,good luck

Regards

Prof. Houda Kawas

Dear all

Many thanks for your quick reply. 

Cucurbit yellow stunting disorder virus (CYSDV) transmitted by the whitefly Bemisia tabaci. 

http://www.nacaa.com/journal/index.php?jid=119

Dear Elaheh , the second picture looks near to Fe-deficiency , while first one , i dont think, it is a mineral deficiency..? But , keeping watch on viruses will be equally important , since many of the viruses block the transport of  mineral nutrients..

Dear Elahed Gerami,

It is not easy to distinguish in the field when faced with a disease, deficiency or toxicity of nutrients or mechanical damage, it is always complicated. However, there are certain ways that help to conjecture and make decisions, such as symptoms or signs distribution in the field.

I mention the above because of I want to mean that it becomes more difficult to diagnose by means of pictures.

I ask you, are the photos of the same plantation or are they different plantations?, Is the nutrition through fertigation?, Is the soil acidic?.

The answers to the questions would help me to get clearer.

Nevertheless, and in a somewhat subjective way, I dare to say that coinciding with Oadi Matny, the first photo may reflect Mg deficiency, the second N deficiency.

I insist, the precise answer is complicated.

Could you please explain about symptoms distribution? Is it local or widespread through greenhouse? These pictures looks nitrogen,magnesium and Fe deficiency. 

This link might be helpful: 

http://www.haifagroup.com/knowledge_center/deficiencies/crops/vegetables/cucumber/