Planting date studies have been conducted for corn over many years. Often the focus has to determine optimum planting maximizing yield. In some areas, early-maturing hybrids as early possible a successful strategy avoiding hot, dry conditions at critical pollination and grain fill stages. later can be an alternative that attempts avoid most intense heat by moving growth stages centered around i...

The zoning of phenomena based on geographical location has a long history; any geographical zone is a part on ground level, which possesses noticeable internal consistency in terms of its existing phenomena and processes. Agroclimatic zoning is mainly purposed to determine agroclimate regions and to evaluate these zones based on their relative utility in order to cultivate varieties of agricult...

This investigation was carried out at Agronomy Department Farm, Faculty of Agriculture, Assiut University, Egypt, to study the effect temperature resulting from different sowing dates, genotypes and their interaction on forage yield its components alfalfa. A set ten (Ismailia-1, Nubaria-1, Ramah-1, populations F.R.S., Kharja, El-Dahlia, Farafra, Balady Aswan Cuf 101) were sown five dates (three...