Abstract
In a study conducted in the experimental field of the Agricultural University - Plovdiv accumulation of cellulose in straw of Triticum monococcum L., Triticum dicoccum Sch. and Triticum spelta L., has been tracked as a result of bio fertilizes application in organic farming conditions. The highest cellulose content was found in the straw of Triticum spelta L., followed by Triticum monococcum L. The least accumulation was found in the straw of Triticum dicoccum Sch. With few exceptions, the application of the investigated fertilizes, increases the content of cellulose in a leaf-stalked mass in Triticum dicoccum Sch. and Triticum spelta L. The opposite trend was observed in Triticum dicoccum Sch. A species reaction was found as a result of fertilization on accumulation of cellulose in straw.