VARIABILITY IN THE PROPERTIES OF TRITICALE AND RYE BIOMASS DUE TO THE DIFFERENT VARIETIES AND GROWING CONDITIONS

摘要

There is a large interest in Spain surrounding the maximum variability that can be obtained in the mainphysico-chemical properties of biomass, when it is produced or used for energy purposes. Multiple sources couldcause that expected variability. Winter cereals might be considered as a potential biomass source for energy purposes,particularly triticale and rye. On the one hand, a statistical study was carried out, and differences between varietiescultivated in the same location and cereal development states were evaluated. On the other hand, different varieties ofcereals were cultivated in 11 different locations around the north and central part of the country under multipleconditions. A Cochran′s test was run to check up on variances (variance of same location vs. variance of differentlocations) and compare the variability originated by the genetics of cereals, and that caused by the different growingconditions. Some parameters as carbon or heating values seem to be dependent on the variety cultivated, while thevariability associated to some others like ash, nitrogen, sulphur, and chlorine contents increases significantly by beingdirectly influenced by some other factors like the different growing and farming conditions.