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Articles by Jahangir Khan
Total Records ( 2 ) for Jahangir Khan
  Jahangir Khan , Shabir Ahmad and Sher Hassan
  Rotted apples collected from six cold stores and two fruit markets in Peshawar and Swat divisions showed attacks of Penicillium expansum (74.2%), Alternaria alternata (11.6%) and Rhizopus sp. (14.2%). However, P. expansum was found to be the most prevalent fungus both in apple stores and markets because of its survival potentiality both at low and high temperatures. These fungi are mostly wound pathogens and require injury for infection. The apple variety Red delicious was more susceptible to the disease than Golden delicious indicating differential reaction of these varieties to apple rot. However, the amount of rotting incited by Rhizopus sp. was greater than the other fungi due to its rapid growth and virulence at 20°C.
  Jahangir Khan , Mumtaz Khan and Muhammad Amin
  Aphanomyces euteiches, Fusarium oxysporium f.sp. pisi, F. solani f.sp. pisi ans Rhizoctonia solani were isolated from 135 infected root specimens collected from eight commerical pea fields at Malakand Division, Pakistan. However, A. euteiches was isolated most frequenty, followed by F. oxysporium f.sp pisi with frequency of 45.92 and 33.33 percent, respectively. For the first time, A. euteiches was recorded on pea from Pakistan as an important component of the root complex. All the isolated fungi were tested for pathogenicity on pea seedings of the variety "climax" and found virulent. The fungicides, benlate, ridomil and captan significantly reduced the incidence and severity of pea root when applied at the time of first symptoms appearance to the root zone, followed by a repeat treatment 15 days latter. The effectiveness of these fungicides was increase when used in conjunction with other management practices for two consecutive years on the same field.
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