LATVIA UNIVERSITY OF AGRICULTURE - Latvijas ...

RESEARCH OF OREGANO (ORIGANUMVULGARE L.) INFLORESCENCE`S PARAMETERSIrina Sivicka, Aleksandrs Adamovičs, Ieva ŽukauskaFigure 2. Plant height of most productive oregano clones on average, cm.Figure 3. Plant height of less productive oregano clones on average, cm.Latvia, 19.8 cm in Lithuania, and 15.7 cm in Norway).Besides, the result in Latvia in 2006 was better than in2011 (17.99 cm).For better analysis, the data about plant heightwere recorded, and the results showed that it variedfrom 27.9 to 68.9 cm. The most productive wereclones with the plant height from 55 cm and higher(Figure 2).The less productive were clones with the plantheight from 27.87 cm to 55 cm (Figure 3).The length of inflorescence was compared with theplant height. Using oregano Draft Descriptor List, itwas characterized as short, medium or long (Table 2).Table 2The characteristics of length of inflorescenceThe length of inflorescenceShort (less than ½ of plantheight)Medium (½ of plant height)Long (more than ½ of plantheight)Clone number1, 3, 4, 6-25,27-45None2, 5, 26The results demonstrated that only 3 cloneshad long inflorescence, but all the others had shortinflorescence. In agrocenosis it is necessary to58 Research for Rural Development 2012