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为了解杂交水稻种子带菌情况及保活剂处理后贮存 2年对种子发芽的影响 ,收集了湖南长沙、沅江、常德、临澧等地的杂交水稻种子 ,保活剂处理前后通过组织分离了解种子带菌情况 ,同时测定了种子水分含量与发芽率 .结果表明 :不同来源杂交稻种子携带的真菌主要为曲霉、毛锥孢、链格孢与镰刀菌 .不同地区不同组合携带的真菌种类有很大的差异 .1999年收获的杂交稻种用保活剂处理后保存 2年 ,携带真菌数量减少 ,发芽率比对照高 1.8%～ 15 .9% ;2 0 0 0年用保活剂处理的杂交稻种保存 1年后 ,发芽率比对照高 0 .3%～ 11% .
In order to understand the effect of seed carrying status of hybrid rice seed and the effect of preservative treatment on seed germination after 2-year storage, hybrid rice seeds from Changsha, Yuanjiang, Changde, Linqu, Hunan and other places were collected. The results showed that the main fungi in hybrid rice seeds from different origins were Aspergillus, Trichosporon, Alternaria and Fusarium.Furthermore, the fungi species carried by different combinations were different Differences in hybrid rice harvested in 1999 preserved with preservatives for 2 years, the carrying fungi decreased, the germination rate was 1.8% ~ 15.9% higher than the control; in 2000 with the preservative-treated hybrid rice After one year of preservation, the germination rate was 0.3% ~ 11% higher than the control.