Estimation of Agronomic Characteristics of Domestic Aromatic Rice Germplasm and Foreign Aromatic Rice Germplasm in RDA Genebank, Korea
2008
Kim, J.S. (National Institute of Agricultural Biotechnology, RDA, Suwon, Republic of Korea) | Ahn, S.N. (Chungnam National University, Daejeon, Republic of Korea) | Cho, Y.H. (National Institute of Agricultural Biotechnology, RDA, Suwon, Republic of Korea) | Gwag, J.G. (National Institute of Agricultural Biotechnology, RDA, Suwon, Republic of Korea) | Kim, T.S. (National Institute of Agricultural Biotechnology, RDA, Suwon, Republic of Korea) | Lee, J.R. (National Institute of Agricultural Biotechnology, RDA, Suwon, Republic of Korea) | Lee, S.Y. (National Institute of Agricultural Biotechnology, RDA, Suwon, Republic of Korea), E-mail: [email protected]
This study was conducted to provide the fundamental data based on the agronomic characteristics of domestic aroma rice, widely cultivated domestic rice and foreign aroma rice for breeding of functional aromatic rice. Among the 104 varieties, all of domestic aroma rice and widely cultivated rice varieties were headed, 24 of 84 varieties of foreign aroma rice were not headed. The average heading date of domestic aroma rice Japonica types of domestic rice was later as 136 day, and Tongil types of domestic aroma rice were faster as 122 day. The average culm length of Indica types of foreign aroma rice was longer as 130 cm, and Tongil types of were shorter as 74 cm. The average panicle length of domestic aroma rice and traditional rice were about 21 cm, and Indica types of foreign aroma rice were longer as 29.5 cm. The average 1,000 grain weight of Tongil types of domestic aroma rice and was not a difference with the domestic aroma rice and was more 2.5 g than the Indica types of foreign aroma rice. The average ratio of grain width and length of Indica types of foreign aroma rice were highest as 3.29 (W/L), and the domestic traditional rice was lowest as 1.7 (W/L). The average fertility rate of the domestic aroma rice, the widely cultivated domestic rice, and the Japonica types of foreign aroma rice were above 89.7%, but the Indica types of foreign and the Tongil types of domestic aroma rice were below 65.4%. The average germination rate of foreign aroma rice were above 83.7%, and domestic aroma rice were above 90.4%. The non-glutinous rice were 64 varieties (84.2%) of total 104 accessions of material rice and the waxy rice were 7 varieties (1%). In the domestic aroma rice, Hyangmi2ho and Aranghyangchalbyeo has a mild aroma grade. In the foreign aroma rice, 22 of 40 varieties of Indica types and 9 of 16 varieties of Japonica types has a lightly aroma grade. And 13 varieties of widely cultivated domestic rice has a non-aroma grade.
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