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一、提要 用~(14)C-标记敌百虫,盛花期后两周以1200ppm~(C)-敌百虫分别涂抹金冠苹果的幼果、莲座叶、果苔付梢叶片,处理后二、五、九天采短果枝,分别测其果实、莲座叶、付梢和果苔四部分的放射性强度。结果发现:a、~(14)C-敌百虫涂抹幼果时,敌百虫有少量外运;b、~(14)C—敌百虫涂抹莲座叶,涂后两天,~(14)C—敌百虫显著外运至付梢和果实;c、C~(14)—敌百虫涂抹付梢叶片时,涂后两天显著外运至果实和莲座叶。经试验后还发现:幼果和付梢茎尖对~(14)C—敌百虫有很强的竞争能力。由此推测:敌百虫在短果
First, the summary ~ ~ (14) C-labeled trichlorfon, two weeks after the flowering period to 1200ppm ~ (C) - trichlorfon were applied Golden Delicious apple young fruit, rosette leaves, moss pay tip leaves, after treatment two , Five or nine days to take short fruit branches, respectively, measured its fruits, rosette leaves, shoot tip and fruit moss four parts of the radioactivity. The results showed that: a, ~ (14) C-trichlorfon smear young fruit, trichlorfon a small amount of outbound; b, ~ ) C-Trichlorfon was significantly outward transported to the shoot and fruit; c, C ~ (14) - trichlorfon smear pay tip leaves, two days after coating significant outward transport to the fruit and rosette leaves. After the test also found: young fruit and shoot tip shoots on the ~ (14) C-trichlorfon has a strong competitive ability. From this speculation: trichlorfon in the short fruit