ピラクロストロビン剤散布のダイズの生育，収量および病害発生に対する効果

日本作物学会紀事

澤路 聖之¹  加藤 雅康²  田澤 純子²  島田 信二² 

[1] BASFジャパン株式会社;中央農業総合研究センター

关键词: Purple stain;    ç´«æ–‘ç—…;    Pyraclostrobin;    ピラクロストロビン;    Seed size;    百粒重;    Seed weight;    粒径;    Soybean;    ダイズ;   

DOI  :  10.1626/jcs.80.21

学科分类：农业科学（综合）

来源: Nihon Sakumotsu Gakkai / Crop Science Society of Japan

【 摘 要 】

The effects of pyraclostrobin, a strobilurin fungicide, applied at different times and concentrations on the growth, yield, and diseases of soybean were examined. In 2006, treatment with pyraclostrobin [150 g active ingredient (a.i.) ha-1] at the end of flowering delayed maturation and increased 100-seed weight more than treatment with iminoctadine albesilate (400 g a.i. ha-1). This effect was not observed when pyraclostrobin was sprayed at the beginning of flowering. In 2007, seed weight and the proportion of large seeds were increased by the treatment with pyraclostrobin at either 133, 67, or 40 g a.i. ha-1; the fungicide was more effective at a higher concentration. At either time or concentration examined, pyraclostrobin reduced the occurrence of seeds with purple stain more effectively than iminoctadine albesilate or no fungicide spraying. There was no difference in diseased leaf area (bacterial pustules, rust, and brown spot) among the fungicide treatments. These results indicated that pyraclostrobin spraying reduced the occurrence of seeds with purple stain and increased seed size.

【 授权许可】

Unknown