CROP LOAD RELATED DEFORMITY OF DEVELOPING PISTACIA VERA CV 'KERMAN' NUTS
Highest incidences of DBOM occurred during May when fruit was thinning and shells were developing. Disease, insects, and mechanical damage were eliminated as causing DBOM. Dormant spraying of calcium, manganese, and boron resulted in no significant mitigation of DBOM.
Microscopic examination of DBOM nuts revealed normal cell development until two weeks after bloom when the shell parenchyma cell layer started to deteriorate.