不同拌种剂对水稻种子发芽及秧苗素质的影响

Effects of Different Rice Seed-dressing Agents on Seed Germination and Seedling Quality of Rice

[目的]探讨自研拌种剂对不同水稻品种发芽及秧苗素质的影响。[方法]通过室内发芽试验和盆栽试验,研究拌种剂1-4号对水稻种子发芽和秧苗素质的影响。[结果]拌种剂处理具有促进种子萌发、胚芽生长、胚根分生、提高秧苗生长、增粗茎基宽、促进地上地下部分干物质积累等作用,提高了秧苗综合素质,其作用程度在不同品种之间存在一定差异。拌种剂处理后,拌种剂4号处理的效果最佳。与对照相比,拌种剂4号处理绿旱1号和连粳7号的发芽率分别提高3.92%和5.06%,叶绿素含量分别提高4.10%和3.13%,根系活力分别增加7.62%和9.35%。[结论]自研拌种剂4号能够促进不同水稻品种的发芽和秧苗素质的改善。

[Objective] In order to study the effects of different rice seed-dressing agents on seed germination and seedling quality of rice.[Method]The indoor experiment of seed germination and potted test were adopted.[Result]Results showed that these seed-dressing agents not only promoted seed germination,rice germ growth,radicle meristem,but also increased seedling growth,thicken stem width and enhanced above and below ground dry matter accumulation,finally improved seedling qualities. However,these effects are not the same to different varieties. After seed dressing,No. 4 treatment had the best effect. Compare to the control,the seed germination rate of Hanlv1 and Lianjing 7,the rice variety,were increased by 3. 92% and 5. 06%,the chlorophyll contents were increased by 4. 10% and 3. 13%,the root activity were increased by7. 62% and 9. 35%,respectively.[Conclusion]The fourth seed-dressing agent could improve seed germination and seedling qualities of different rice varieties.