Arain, B. T.; Baloch, M. J.; Bughio, Q.-U.-A.; Sial, P.; Arain, M. A.; Baloch, A. Estimation of Heterosis and Combining Ability in F1 Hybrids of Upland Cotton for Yield and Fibre Traits: Upland Cotton Yield and Fibre Traits. Pakistan Journal of Scientific & Industrial Research 2015, 58, 132-139.