Performance of some Wheat Cultivars under Normal and Late Sowing Dates in North Delta

Abstract

A field experiments were conducted at Experimental farm Faculty of Agriculture, Kafrelshiekh University, Egypt during 2014/15 and 2015/16 growing seasons. This work was intended to study the effect of late sowing on 30th December compared to normal sowing on 20th November, on growth, yield and yield components of five bread wheat cultivars i.e Sakha 93, Giza 168, Misr 2, Sids 12 and Giza 171cultivars. The results revealed that mean squares due to planting dates, cultivars and planting dates x cultivars interaction were affected significantly for most of the studied traits. The normal sowing on 20th November produced the highest values of studied traits, while late sowing on 30thDecember significantly declined yielding capacity of wheat genotypes. Varietal differences were significant for all traits under investigation. The cultivars Misr 2, Giza 171 and Giza 168 produced highest grain yield in both seasons. In addition, all tested wheat cultivars produced highest grain yield when planted on 20th November. Giza 168 recorded the highest values for germination percentage, EC and hectoliter weight, and Giza 171 for protein percentage. While, Sakha 93 recorded the lowest electrical conductivity. It could be concluded that wheat cultivars produced the highest values of traits under sowing on 20th November. Misr2 was more susceptible to late sowing date.