Following the coordination made by the Institute's Public Relations Office, Dr. Maryam Ghayeb Zamharir, the faculty member of Plant Diseases Research Department of the Iranian Research Institute of Plant Protection, on Friday, April 23, gave an interview with the Iranian Students News Agency (ISNA) about “The control of the complication of Soybean pod disorder” titled "Soybean farmers should read" in the following link:
In an interview with ISNA, stating that soybean is one of the most important oilseeds in the world, she said: "Northern provinces of Iran are the most important soybean growing areas in the country and in recent years the complication of pod disorder has led to reduced yields in these areas. This complication is more severe in late cultivation fields and is seen in various forms of non-fruiting and low-fruiting, in the form of patches and sometimes in the whole field.
She further referred to the symptoms of this complication and said: the plants are relatively green at the time of harvest and have abnormal pods. The phenomenon of pod disorder is associated with the appearance of symptoms such as herbaceous growth, severe flower fall, abnormal flower and pod formation and accumulation, stem curling, stem thickening and sometimes terminal bud burn and lack of seed formation in the pod. Plants with pod disorder are sometimes seedless or single-seeded, and the seeds often become incomplete and wrinkled, although sometimes under good environmental conditions and management during the grain filling period, these single seeds also grow larger. Phytoplasmic agent causes disease of soybean pod formation in Iran. The disease can be transmitted through bugs in soybean fields. Willow trees and straw plants around soybean fields with symptoms of yellows and strip yellows can act as overwintering area of disease causing agent and disease vector. Also phytoplasmic transmission of the disease through seeds is less than 2%.
She made recommendations to reduce the damage of this disease and added: as soon as the symptoms of the disease are observed, sucking pests (bugs) should be controlled with systemic pesticides and at the same time micro and boron fertilizers should be used to stimulate flowering and pod formation. Controlling straw weeds around soybean fields, avoiding planting willow trees around soybean fields, not using seeds of plants with symptoms of pod disorder, and using healthy seeds can help reduce the damage.