ABSTRACT
Pakistan is situated in the north-eastern part of the Indo-Pakistan subcontinent that lies between 23° and 37° north latitude and 62° and 75° east longitude, with a length and width of nearly 1400 and 500 km, respectively. Pakistan spans across a huge area, having a fertile soil, topography, and a favorable climate, highly suitable for round-the-clock agriculture and good food production. Pakistan is naturally an agricultural-based economy, which is the main provider of employment and livelihood. The country produces wheat, maize, rice, cotton, sugarcane, and other cereal in suf-cient quantities. Wheat is the predominant food grain in Pakistan (Noorka et al., 2012). Pakistan underwent a historical green revolution of the 1960s, which paved the way for new, improved earlymaturity and high-yielding dwarf varieties of wheat and rice (Noorka et al., 2013a).
