Comparison of Traits Related to Dry Matter Production and Grain Yield among Rice Cultivars Released in Different Years
2006
Bum, Y. (Gyeonggi-do Agricultural Research and Extension Services, Hwasung, Republic of Korea) | Lee, K.J. (Seoul National University, Seoul, Republic of Korea) | Lee, B.W. (Seoul National University, Seoul, Republic of Korea), E-mail: [email protected]
Six japonica and three Tongil type cultivars that were released in different years and planted to a large area during different periods were grown at the experimental farm of Seoul National University in 2001 and compared for traits related to dry matter production and grain yield. The varieties chosen were Jodongji released in 1896, Paldal in 1944, Jinheung in 1962, Nagdong and Tongil (Tonsil type) in 1971, Milyang#23 (Tongil type) in 1976, Hwasung in 1986, Ilpum in 1991, and Dasan (Tonsil type) in 1996. The more recent cultivars tended to have lower canopy light extinction coefficients (K).
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