不同药剂不同拌种时间对甜菜种子发芽率的影响

Abstract

Abstract: 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%.

CLC Number:

S566.3

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

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