Studies on Direct Sowing Culture of Rice in Northern Kyushu : I. Evaluation of lodging tolerance

Japanese Journal of Crop Science

Yuji MATSUE¹  Takefumi OGATA¹ 

关键词: Direct sowing culture;    移植栽培;    Lodging tolerance;    押し倒し抵抗;    Northern Kyushu;    水稲;    Pushing resistance;    耐倒伏性;    Rice;    湛水直播;    Transplanting culture;    品種間差異;    Varietal difference;    北部九州;   

DOI  :  10.1626/jcs.65.87

学科分类：农业科学（综合）

来源: Nihon Sakumotsu Gakkai / Crop Science Society of Japan

【 摘 要 】

This study was undertaken to find the evaluation method of lodging tolerance under direct sowing culture in flooded paddy field for the selecting of good eating quality rice cultivar well adapted to direct sowing culture in Northern Kyushu. Under direct sowing culture, lodging degree showed a significant (P<0.01) positive correlation with pushing resistance. This result indicates that it is possible to use pushing resistance as an indicator of lodging tolerance under direct sowing. Pushing resistance under transplanting culture showed a significant (P<0.01) position correlation with the pushing resistance under direct sowing culture, and further showed a significant (P<0.01) positive correlation with the lodging tolerance under direct sowing culture. Therefore, the lodging degree under direct sowing culture could be evaluated by pushing resistance under transplanting culture. These results lead to the conclusion that selecting high lodging tolerance cultivar adapted to direct sowing culture is possible without direct sowing by taking an accurate measurement of pushing resistance under transplanting culture.

【 授权许可】

Unknown