What's the reason in tree leaves

Hi Najmul Hoque , Need crop history. Have you done the application of any chemical ?

Nutrition deficiency.

Iron deficiancy

Dear Najmul Hoque Chandra Sekhar Shahzaib Kashan Gangadhar Suresh Gollar It is certainly deficiency syndrome , looks to be iron deficiency. If it is just one or two plants in the whole field , it can be ignored as physiological disorder . If the major part of the field is affected , then it can be taken as iron deficiency and remidial action may be initiated. If it is iron deficiency, it can not affect a single plant in isolation , but has to affect major portion of the crop. Thanks to you all for participating in the discussion.