关键词: 水稻, 株型, 农艺性状, 品质, 中国, 日本

Abstract:

To promote high quality rice breeding in Heilongjiang province, the plant type traits and quality traits of 9 Japanese japonica rice varieties and 9 Heilongjiang japonica rice varieties were compared in this study. The results showed that there were significant differences in plant type between Heilongjiang varieties and Japanese varieties, the plant height and the diameter of upper 3 internodes of Heilongjiang varieties were higher than that of Japanese varieties significantly. The up 3 leaf of Heilongjiang varieties were longer and wider than Japanese varieties. The blade perpendicularity of Japanese varieties was generally superior to Heilongjiang varieties. Panicle length，panicle weight and grain weight of Heilongjiang varieties were superior to Japanese varieties. There were no significant difference in milling quality and appearance quality between Heilongjiang varieties and Japanese varieties. The amylose content and taste of Heilongjiang varieties were slightly higher than that of Japanese varieties, the protein content was slightly lower than Japanese varieties.

Key words: rice, plant type, agronomic traits, quality, China, Japan