Comparison of Rice Grain Yield and Quality of Different Maturity Groups by Cultivating in Korea and Japan
| Autor: | Shin-Gu Kang, Hiroshi Kato, Kiroyuki Satou, Bo-Kyeong Kim, Winter Cereal Crop, Nics, Rda, Iksan , Korea, Hong-Kyu Park, Makoto Sakai, Hiroshi Nemoto, Jae-Kwon Ko, Takuro Ishii, Ikuo Ando |
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| Rok vydání: | 2014 |
| Předmět: | |
| Zdroj: | Journal of the Korean Society of International Agricultue. 26:353-359 |
| ISSN: | 2287-8165 1225-8504 |
| Popis: | Field experiments were conducted to identify the effect of high temperature in rice yield and grain quality by comparing the three different maturity groups cultivated in Iksan (Korea), Tsukuba, and Hainuzuka (Japan). Two varieties were selected for each maturity group of early, mid, and mid-late maturing from Korea, and those six varieties were cultivated under the standard methods of the three experiment stations. The average grain yields of the early maturing, mid-maturing, and mid-late maturing groups in Iksan were 495 kg/10a, 510 kg/10a, and 540 kg/10a, respectively. In Hainuzuka, The average grain yields of the early maturing, mid-maturing, and mid-late maturing groups in Iksan were 485 kg/10a, 477 kg/10a, and 510 kg/10a, respectively. In contrast, head rice yield of early maturing group in Hainuzuka (423 kg/10a) was higher than mid-late maturing group (400 kg/10a) in Hainuzuka, and also than that of the early maruing group in Iksan (366 kg/10a). According to the above results, grain yield would be decreased by 2 6% as temperature increases to the current level in Hainuzuka. However, head rice yield can be increased or decreased according to the maturity and variety. These results will be helpful for rice breeders to consider the using early maturing germplasm, and for agronomist to select adaptable early maturing rice varieties to mitigate the adverse effect of climate warming. |
| Databáze: | OpenAIRE |
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