A Multiple Disease Resistant, Middle Plain Area Adaptable and Early Maturing Rice Jungmo1023
2015
Won, Y.J., National Institute of Crop Science, RDA, Wanju, Republic of Korea | Cho, Y.C., National Institute of Crop Science, RDA, Wanju, Republic of Korea | Choi, I.S., National Institute of Crop Science, RDA, Wanju, Republic of Korea | Lee, J.H., National Institute of Crop Science, RDA, Wanju, Republic of Korea | Lee, S.B., National Institute of Crop Science, RDA, Wanju, Republic of Korea | Lee, J.H., National Institute of Crop Science, RDA, Wanju, Republic of Korea | Oh, M.K., Rural Development Administration, Jeonju, Republic of Korea | Kim, J.J., National Institute of Crop Science, RDA, Wanju, Republic of Korea | Yang, C.I., National Institute of Crop Science, RDA, Wanju, Republic of Korea | Ahn, E.K., National Institute of Crop Science, RDA, Wanju, Republic of Korea | Chang, J.K., National Institute of Crop Science, RDA, Wanju, Republic of Korea | Lee, J.S., National Institute of Crop Science, RDA, Wanju, Republic of Korea | Hong, H.C., National Institute of Crop Science, RDA, Wanju, Republic of Korea | Yoon, M.R., National Institute of Crop Science, RDA, Wanju, Republic of Korea | Suh, J.P., Rural Development Administration, Jeonju, Republic of Korea | Oh, S.K., National Institute of Crop Science, RDA, Wanju, Republic of Korea | Hwang, K.H., National Institute of Crop Science, RDA, Wanju, Republic of Korea | Kim, C.K., Jeolabuk-do Agricultural Research and Extension Services, Iksan, Republic of Korea
The Jungmo1023 is the japonica rice variety developed from a cross between Yeongdeog34 and F1 of Iksan456 and SR21097-B-B-19-2-2 by the rice breeding team at NICS in 2012. The heading date of Jungmo1023 is August 3 in middle plain area and it is six days earlier than Hwaseong. Jungmo1023 has 80 cm of culm length which is 4 cm shorter than those of Hwaseong and 107 spikelet per panicle. The premature heading rate of Jungmo1023 was 3.3%. It showed resistance to blast, bacterial blight (K1, K2, K3 race) and stripe virus, but susceptibility to K3a race of bacterial blight, dwarf and black streak dwarf viruses and planthoppers. The milled rice of this variety exhibits translucent and medium short grain shape. It has better palatability index of cooked rice (0.24) and lower amylose content (18.0%) than that of Hwaseong. The characteristics related to grain milling were better than those of Hwaseong, especially head rice milling recovery ratio and head rice ratio (96.2%). Jungmo1023 showed 4.56 MT/ha of milled rice productivity at 7 sites in ordinary cultivation. However, Jungmo1023 showed early cultivation culture adaptability because of 98% of its yield potential (4.99 MT/ha) compared to high yielding early-maturing variety Jopyeong. Jungmo1023 could be adaptable to the middle plain, mid-mountainous and north-east coastal area in Korea (Registration No. 5115).
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