TY - BOOK AU - Nabil Eshack Gergis Mekhaile AU - Ahmed Ali Abdelhalim , AU - Deyea Ahmed Elkadi , AU - Mohamed Ali Ellakany , TI - Statistical models for optimizing productivity of some maize genotypes / PY - 2011/// CY - Cairo : PB - Nabil Eshack Gergis Mekhaile , KW - Factor analysis KW - Statistical models KW - Stepwise regression analysis N1 - Thesis (Ph.D.) - Cairo University - Faculty of Agriculture - Department of Agronomy; Issued also as CD N2 - A field experiment was conducted at sids reseaerch station Agriculture research center during 2005 and 2006 summer seasons to study the effect of macro environmental factors (climatic and soil) and two planting dates on productivity of six maize (Zea mays L.) genotypes. Multiple linear regression analysis stepwise regression analysis path coefficient analysis factor analysis and traits mean performance combined across seasons were used UR - http://172.23.153.220/th.pdf ER -