YIELD AND STRUCTURAL COMPONENTS OF THE SPIKE OF LOCAL SPECIES OF Triticum dicoccum Sch., Triticum spelta L. AND Triticum monococcum L. IN THE CONDITIONS OF CENTRAL SOUTH BULGARIA

In the period 2018-2021 at the Agricultural University, Plovdiv, Bulgaria, a comparative study was conducted on the productivity of three local species of Triticum dicoccum Sch., Triticum spelta L. and Triticum monococcum L. A block method was used, in four replications, the size of the reporting plot was 10 m(2). The influence of the year and the species on the yield and the structural components of the spike were studied. It has been established that grain yield is formed under the strong and proven influence of the year. There are also proven differences between the yields of individual species (Triticum spelta L. - 2906 kg/ha; Triticum monococcum L. - 2660 kg/ha; Triticum. dicoccum Sch. - 2268 kg/ha).The longest spike forms Triticum spelta L. - 8.2 cm, and the shortest - Triticum dicoccum Sch. - 3.5 cm. The largest number of spikelets formed Triticum monococcum L. (19.2). Triticum. spelta L. has been proven superior in terms of number of grains per spike and grain mass per spike to the other two species