MORPHOLOGICAL CHARACTERS AND YIELD ANALYSIS OF BIANKA AND GALILEO-TWO NEWLY INTRODUCED VARIETIES OF RICE (Oryza sativa L.) IN MACEDONIA

The new varieties’ performances were compared to the standard rice varieties prima riska (Macedonian variety) and R-76/6 (domesticated Italian variety), grown under agroecological conditions of the Kocani region. The research was carried out during 2009 and 2010 by setting-up field trials (randomized block system). The following traits were analyzed: paddy rice yield, biological yield, stem height, panicle length and number of productive tillers per m². The highest average yield of paddy rice was achieved in the variety galileo (8548 kg/ha), and the lowest was in the standard variety R-76/6 (7735 kg/ha). The highest average biological yield was reached of the standard variety R-76/6 (17166,50kg/ha), while the lowest was in variety bianca (16125,00kg/ha). The introduced rice varieties were characterized by lower average stem height (bianca-53,70 cm, galileo-58,24 cm) compared to standards (prima riska-86,20cm and R-76/6-92,40 cm). The average panicle length of the varieties: bianca (17,20 cm), galileo (16,43 cm) and the standard R-76/6 (16,27 cm) was lower compared to the standard variety prima riska (19,15cm). The highest average number of productive tillers per m² was determined for the standard variety R-76/6 (399,83) and the lowest for the variety bianca (334,67). In 2009, the significantly largest number of productive tillers per m² (for both levels of probability) was estimated for the standard variety R-76/6 (493,33), since in 2010, for the same character, the significantly highest value was reached in the variety galileo (420,33).