YIELD AND QUALITY OF BREAD WHEAT VARIETIES CREATED IN THE INSTITUTE OF PLANT GENETIC RESOURCES IN SADOVO, BULGARIA

Abstract

The Institute of Plant Genetic Resources (IPGR), Sadovo, Bulgaria, is a big wheat breeding center. Variety seeds for the productive system of the country and for the export are growing there. The yield and the quality of 15 varieties were assessed in the period of 2005, 2006, 2007, 2008. High yielded varieties – average 6.3–6.7 t/ha, are Sadovo 772, Guiness 1322, Murgavets , Katya, Geya-1. They exceed the yield of the national standard Sadovo-1 (6.2 t/ha). The wheat quality potential depends on the genetic basis of variety as well as on the agro-climatic conditions of the region such as high test weight 40.3–47.3 g; 1000 kernel weight 70.2–79.4 kg/hl. The vitreousness of grain varied from 35 % (2005) to 70 % (2008). Strong-blended wheat varieties Pobeda, Momchil and Sadovo 552 have content of wet gluten of 29.6–30.5 % and lower gluten softening of 5.6–7.3 mm. The examined high yielded varieties with good grain quality especially Katya, Sadovo 772, Geya-1 and Guiness/1322 are eligible to be grown under dry conditions.