![Sample our Environment & Agriculture journals, sign in here to start your access, latest two full volumes FREE to you for 14 days]({"type":"image" , "src" : "/sda/5934/TOC-Subject-Sample-2021-Environment-Agriculture.jpg"})
Abstract
The inheritance of phosphorus accumulation in the ear leaves of maize (Zea mays L.) was investigated. Five inbreds were chosen, two high phosphorus accumulators (Rg‐8 and G‐307), two low phosphorus accumulators (Rd‐2 and Rg‐5), and a moderate one (K‐64). Their parents were used to obtain all possible ten Fl hybrids (in one direction), 10 F2, 10 Bl, and 10 B2 segregational generations. Phosphorus was estimated at 50% tasseling date. Phosphorus accumulation in these genotypes was found to be genetically controlled and is affected by non ‐ allelic gene interaction in addition to the additive and dominance gene effects. The high phosphorus accumulating inbred parents proved to be the best general combiners and the (high x low) hybrids showed the best specific combining abilities. The estimates of the minimum number of segregating genes in the (high x low) crosses revealed the presence of at least 10 segregating factors; however, the possibility of genetic linkage was not rolled out.
Notes
Genetics Department, Faculty of Agriculture, University of Alexandria, Egypt.