以完全甜柿‘富有’(Diospyros kaki L.‘Fuyu’)为试材,研究了在室温(20±2)℃贮藏条件下1-甲基环丙烯(1-MCP)0.50μL·L-1处理对果实的影响。结果表明:1-MCP处理可显著抑制其呼吸速率、乙烯释放速率和衰老软化进程;1-MCP处理...以完全甜柿‘富有’(Diospyros kaki L.‘Fuyu’)为试材,研究了在室温(20±2)℃贮藏条件下1-甲基环丙烯(1-MCP)0.50μL·L-1处理对果实的影响。结果表明:1-MCP处理可显著抑制其呼吸速率、乙烯释放速率和衰老软化进程;1-MCP处理通过抑制果实中LOX活性的升高和MDA含量的积累,一定程度上维持了果肉细胞器和膜系统的完整性,延缓甜柿果实的软化衰老进程。展开更多
The inhibitory effects of 10 fungicides on apple tree valsa canker were compared on dishes and twigs.The results showed that conidia germination and mycelial growth were inhibited by all fungicedes tested.The EC50 val...The inhibitory effects of 10 fungicides on apple tree valsa canker were compared on dishes and twigs.The results showed that conidia germination and mycelial growth were inhibited by all fungicedes tested.The EC50 value of Difenoconazole was 6.1×10-3 μg·mL-1,the lowest among tested fungicide in inhi-biting conidia germination.Tebuconazole and Imazalil also showed obvious inhibition effect.Thiophanate-methyl was the least efficient with the EC50 value 2.6×101 μg·mL-1.Difenoconazole also showed the highest activity for inhibiting mycelial growth with EC50 value of2.3×10-2 μg·mL-1.Tebuconazole was better than other fungicide.Thiophanate-methyl and Propineb were the least efficient with quite high EC50 value.Furthermore,the size of the lesion after inoculation on excised twigs also revealed that Difenoconazole was most efficient because it showed the smallest lesion of 394 mm2 compared with other tested fungicides.So Difenoconazole and Tebuconazole could be used to control apple tree valsa canker in field to subsititute forbided fungicides such as asomate.展开更多
文摘以完全甜柿‘富有’(Diospyros kaki L.‘Fuyu’)为试材,研究了在室温(20±2)℃贮藏条件下1-甲基环丙烯(1-MCP)0.50μL·L-1处理对果实的影响。结果表明:1-MCP处理可显著抑制其呼吸速率、乙烯释放速率和衰老软化进程;1-MCP处理通过抑制果实中LOX活性的升高和MDA含量的积累,一定程度上维持了果肉细胞器和膜系统的完整性,延缓甜柿果实的软化衰老进程。
文摘The inhibitory effects of 10 fungicides on apple tree valsa canker were compared on dishes and twigs.The results showed that conidia germination and mycelial growth were inhibited by all fungicedes tested.The EC50 value of Difenoconazole was 6.1×10-3 μg·mL-1,the lowest among tested fungicide in inhi-biting conidia germination.Tebuconazole and Imazalil also showed obvious inhibition effect.Thiophanate-methyl was the least efficient with the EC50 value 2.6×101 μg·mL-1.Difenoconazole also showed the highest activity for inhibiting mycelial growth with EC50 value of2.3×10-2 μg·mL-1.Tebuconazole was better than other fungicide.Thiophanate-methyl and Propineb were the least efficient with quite high EC50 value.Furthermore,the size of the lesion after inoculation on excised twigs also revealed that Difenoconazole was most efficient because it showed the smallest lesion of 394 mm2 compared with other tested fungicides.So Difenoconazole and Tebuconazole could be used to control apple tree valsa canker in field to subsititute forbided fungicides such as asomate.
