Amir Zaman
Agronomy Department, NWFP Agricultural University, Peshawar, Pakistan
P. Shah
Agronomy Department, NWFP Agricultural University, Peshawar, Pakistan
A. Qayyum
Agronomy Department, NWFP Agricultural University, Peshawar, Pakistan
G. Woras
Pakistan Tobacco Board, Peshawar, Pakistan
E. A. Hashmi
Pakistan Tobacco Board, Peshawar, Pakistan