Hi

would you please answer me asap. I really appreciate it.

i am waiting.

Dear Elaheh Gerami

on the basis of the picture you posted on Researchgate the wheat plantley suffered because of frost. The damage is localized in the area corresponding to the vegetative apex at the time the frost occurred

Cheers

Gaetano  Magnano di San Lio

Hi

I have special thanks in advance for your cooperation.

Dear Elaheh you have not mentioned the environmental condition but most probably it is cold Injury symptoms, generally occurs in initial crop growth stage. If Soil temperature remain less than ten degree centigrade it becomes difficult for the roots to absorb nutrients from the soil and if it continues for long time it may cause shrinkage in leaf as well as the top portion of leaf becomes yellowish and gradually it may come down through leaf lamina. Spraying of Zinc (in chelated form) @ 0.5 gm / lit of water may be helpful.  

I shall remain obliged if you inform the environmental condition, intensity as well as stage of crop when the problem occurs, salinity of soil and soil pH.

with regards.