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Yield and Grain Quality of Early Maturing Rice Cultivars as Affected by Early Transplanting in Yeongnam Plain Area  

Lee, Jong-Hee (Rice Ecology and Breeding Division, Yeongnam Agricultural Research Institute, NICS, RDA)
Park, Dong-Soo (Rice Ecology and Breeding Division, Yeongnam Agricultural Research Institute, NICS, RDA)
Kwak, Do-Yeon (Rice Ecology and Breeding Division, Yeongnam Agricultural Research Institute, NICS, RDA)
Yeo, Un-Sang (Rice Ecology and Breeding Division, Yeongnam Agricultural Research Institute, NICS, RDA)
Song, You-Chun (Rice Ecology and Breeding Division, Yeongnam Agricultural Research Institute, NICS, RDA)
Kim, Choon-Song (Rice Ecology and Breeding Division, Yeongnam Agricultural Research Institute, NICS, RDA)
Jeon, Myeong-Gi (Rice Ecology and Breeding Division, Yeongnam Agricultural Research Institute, NICS, RDA)
Oh, Byeong-Geun (Rice Ecology and Breeding Division, Yeongnam Agricultural Research Institute, NICS, RDA)
Shin, Mun-Sik (Rice Ecology and Breeding Division, Yeongnam Agricultural Research Institute, NICS, RDA)
Kim, Je-Kyu (Rice Ecology and Breeding Division, Yeongnam Agricultural Research Institute, NICS, RDA)
Publication Information
KOREAN JOURNAL OF CROP SCIENCE / v.53, no.3, 2008 , pp. 326-332 More about this Journal
Abstract
This study was conducted to evaluate an early-maturing rice cultivars adaptable to early transplanting cultivation in Yeongnam plain area. High temperature during the ripening stage of paddy rice under the early-transplanting cultivation in Yeongnam plain was to influence in several agronomic traits such as number of spikelet, ripening ratio, grain appearance of milled rice, and yield. 'Gounbyeo' and 'Junghwabyeo' were better than the others in grain appearance of milled rice and ripening ratio, but their yield potential were lower than that of the other varieties. Moreover, 'Gounbyeo' and 'Junghwabyeo' showed high ratio of broken rice. 'Unkwangbyeo' was the highest in yield and eating quality among the tested varieties, but also high percentage of white core and belly in milled rice. Therefore, in order to recommend those cultivars to farmers, it should be needed to establish an optimal cultivation method, such as transplanting density, fertilizer application, and harvesting time, etc. consequently, it should also be required to develop a new varieties with high ripening capability under high temperature condition.
Keywords
rice; early-transplanting cultivation; grain quality; high temperature
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Times Cited By KSCI : 3  (Citation Analysis)
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