不同药剂不同拌种时间对甜菜种子发芽率的影响

40%甲基异柳磷乳油和65%甲拌磷乳油采用不同时间和不同稀释浓度处理甜菜种子,试验结果表明 40%甲基异柳磷乳油处理甜菜种子时使用量 种∶药=1000g∶10～20ml对种子的出苗率和相对出苗率影响很小 65%甲拌磷乳油处理甜菜种子时使用量 种∶药=1000g∶10～20ml,抑制了种子的萌发,10d时使得出苗率降低2.5～3.3个百分点,相对出苗率为65.8%～87.3% 17d时出苗率降低了1.7～7.5个百分点 40%甲基异柳磷乳油和65%甲拌磷乳油处理甜菜种子时使用量 种∶药=1000g∶30～40ml,在温室条件下影响了甜菜种子的出苗率,10d时出苗率比空白对照降低36.7～47.5个百分点,17d时降低21.8～33.8个百分点,17d时的相对出苗率仅为34.1%～44.6%。

Effect of Pesticide and Seed Dressing Time on Sugar Beet Seed Germination

The effect of two pesticidal chemical is different when dealing with sugar beet seed with 40% isofenphos-methyl and 65% phorate in different diluted concentration, and different time. The results showed that there is hardly effect on germination rate and relative germination rate when dealing with sugar beet seed with 40% isofenphos-methyl （the usage ratio is that seed： liquid=1000g：10-20ml）.However,it inhibited the seed germination when dealing with sugar beet seed with 65% phorate,it reduced about a percentage of 2.5-3.3 andl.7-7.5 less than the control at lOd and 17d after training respectively.The relative germination rate is only 65.8%-87.3%.When the sugar beets were treated using 40% isofenphos-methyl and 65% phorate synchronously （the usage ratio is that seed：liquid=1000g：30-40ml）, germination rate is influenced under the conditions in the greenhouse,it reduced about a percentage of 36,7-47.5 and 21.8-33.8 less than the control at 10d and 17d after training respectively. The relative germination rate is only 34.1%-44.6%.