コシヒカリのいもち病真性抵抗性同質遺伝子系統の特性評価

日本作物学会紀事

長澤 裕滋²  佐藤 徹¹  石崎 和彦²  浅井 善広² 

[1] 新潟県農業総合研究所佐渡農業技術センター;新潟県農業総合研究所作物研究センター

关键词: Oryza sativa L;    イネ;    blast resistance;    いもち病真性抵抗性;    isogenic line;    同質遺伝子系統;    Koshihikari;    コシヒカリ;    multiline variety;    rice variety;    多系品種;   

DOI  :  10.1626/jcs.74.304

学科分类：农业科学（综合）

来源: Nihon Sakumotsu Gakkai / Crop Science Society of Japan

【 摘 要 】

Eight blast resistance isogenic lines, “Koshihikari Niigata BL No. 1, No. 2, No. 3 and so on, were examined for their agronomic traits, qualities, and taste in comparison with those of “Koshihikari”, the original variety, and major varieties in Niigata Prefecture. From the results of an analysis of variance on main characters, significant differences among varieties were detected at a 1% level for heading date and grain quality, and at a 5% level for culm length and panicle length. Tukey comparisons at a 5% level indicated that only the difference in heading date between “Koshihikari Niigata BL No. 8” and “Koshihikari” was significant. However the difference was immaterial in practice because heading of BL No. 8 was only one day later than that of “Koshihikari”. A principal component analysis showed that all of the “Koshihikari BLs” took positions near “Koshihikari” in a scatter diagram for the first and second principal components, and the major varieties were distinct from the “Koshihikari BLs”. It was clear that the “Koshihikari BLs” had no differences in characters that were problems in practice and were distinct from major varieties. Therefore, we judged possible to supply them to general cultivation.

【 授权许可】

Unknown