List of Articles Heterosis Open Access Article Abstract Page Full-Text 1 - The Comparative Observation of Quantitative Characteristics, Heterosis and Dominance Degree in Hybrids Derived from Breeding Populations of True Potato Seed D. Hassanpanah Open Access Article Abstract Page Full-Text 2 - Estimation of Individual Heterosis for Lamb Growth in Ghezal and Mehraban Sheep H. Atashi J. Izadifar Open Access Article Abstract Page Full-Text 3 - Effect of potassium hummate on seed germination, tuber yield and yield components, and estimation of heterosis rate and dominance degree in true potato seed hybrids Davoud Hassanpanah Anvar Asadi