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10- Cotton and Fiber Crop Disease:
- Number of section staff is 22 members.
B- Activities:
- Cooperation with cotton breeding efforts for resistance to wilt disease and with flax breeding for wilt and rust diseases.
- Conducting research for the control of root rot and damping-off diseases in cotton and flax.
C- Achievement:
Wilt disease is the most important pathological problem for cotton in Egypt. Breeding to develop resistant varieties has been the only effective method to reduce losses. PPATHRI has played an instrumental role in cooperation with the Cotton Research Institute of the ARC in developing resistant varieties. Currently, all commercially used resistant cotton varieties. Currently, all commercially used resistant cotton varieties developed in Egypt have been screened for resistance to Fusarium wilt. As a result, during the last ten years no serious outbreaks of wilt disease have occurred. The original screening process is followed up annually with yearly screening and comparison of resistant characteristics of each variety.
Sooty mold is another economically significant disease of cotton recently identified, and successful control measures have been established. In 1991, a severe epidemic of sooty mold, caused by Cladosporium sp., greatly reduced productivity, cotton bolls did not mature, and quality correspondingly decreased. Research by PPATHRI led to the use of thiocarbamate compounds, which gave good disease control.
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