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벼 조생흑찰의 시비조건에 따른 생육 및 안토시아닌 함량변이
오성환,김상열,최원영,서종호,황정동,이휘종,조준현,권영업,남민희,이철원 忠北大學校 農業科學硏究所 2015 農業科學硏究 Vol.31 No.2
Anthocyanin production of black pigmented rice is generally influenced by cultivation environments like transplanting date, cultivation location and fertilization method. This study was carried out to establish an optimum fertilizer application method for production of black pigmented rice with high anthocyanin content. Eight fertilization treatments(NPK, NPK+Si, NPK+Compost, PK, NK, NP, Compost, No Fertilizer) were evaluated with a back pigmented rice cultivar, Josaengheugchal, from 2013 to 2014. Heading date of Josaengheugchal in most fertilization treatments was August 6 to 9 but heading date of NK(P0) treatment was late on August 16. Anthocyanin content was fluctuated between 2013 to 2014. Anthocyanin content of Josaengheugchal in 2014 was higher than that of 2013 because average temperature of ripening stage in 2014 was lower by about 3.2oC than that of 2013. In 2013, anthocyanin content of Josaengheugchal during 30 days after heading(DAH) was decreased by 15.6 mg with increasing average temperature of 1oC. However, temperature effect on anthocyanin content of Josaengheuchal was not observed in 2014 because no significant correlation between average temperature and application treatments was observed. On the other hand, anthocyanin content was significantly influenced by fertilization treatments. Anthocyanin content of Josaengheuchal was highest at the NPK+Compost treatment showing about 17% and 62% higher than NPK, No-Fertilizer treatments, respectively. Total amount of anthocyanin production was also highest with NPK+Compost, higher about 30%, 288% than NPK, No-Fertilizer, respectively.