Yield and Grain Quality as Affected by Seedling Age in Late Transplanted Rice
2008
Won, J.G. (Gyeongbuk Agricultural Research and Extension Services, Daegu, Republic of Korea), E-mail: [email protected] | Ahn, D.J. (Gyeongbuk Agricultural Research and Extension Services, Daegu, Republic of Korea) | Kim, S.J. (Gyeongbuk Agricultural Research and Extension Services, Daegu, Republic of Korea) | Choi, C.D. (Gyeongbuk Agricultural Research and Extension Services, Daegu, Republic of Korea) | Lee, S.C. (Kyungpook National University, Daegu, Republic of Korea)
This study was conducted to compare the yield and grain quality as affected by rice seedling age in late transplanted rice. The rice yield was remarkably reduced in 10 day-old seedlings but those of older seedlings over than 30-day were not different. In the rice quality, as the rice seedling age younger the rate of greened and damaged rice increased, suggesting decreasing of the head rice rate. Among the physicochemical characteristics, protein content of rice grain was increased in 10 day-old seedling but amylose content was not different, consequently, the palatability was improved in older seedlings over than 30-day. From these results, it is more beneficial to machine transplant the older seedlings over than 30-day for delayed transplanting.
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