Khurram Shahzad, Jehan Bakht, Wajid Ali Shah, Muhammad Shafi and Nadia Jabeen
Asian Journal of Plant Sciences 1 ( 5 ): 522 - 525 , 2002
Shazma Anwar, Wajid Ali Shah, Jehan Bakht and Nadia Jabeen
Journal of Agronomy 3 ( 1 ): 59 - 67 , 2004