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摘要: 以厚藤Ipomoea pes-caprae种子为试验材料,测定其种子的大小、千粒质量、硬实率、生活力以及在不同处理条件下的发芽势和发芽率。结果表明:机械处理下的效果最好,其种子平均发芽势和发芽率均提高到95.3%;其次为980 gkg-1硫酸处理90 min较好,平均发芽势达到91.2%,发芽率达93.5%;氢氧化钠处理也可明显提高厚藤种子萌发能力,400 gkg-1氢氧化钠处理36 h的平均发芽率可达79.4%;不同温度处理以25 ~ 30 ℃的萌发能力最强,其发芽势为24.6%,发芽率为43.4%。实际工作中,可以采用机械处理或酸碱处理的方法以提高厚藤种子的萌发能力。图2表4参18Abstract: In this research the influence of different treatments on seed germination characteristics of Ipomoea pes-caprae were studied to determine effective measures for enhancing the germination rate and germination potential. Treatments included a mechanical treatment,98% H2SO4 solution for 90 min,40% NaOH solution for 36 h,and a temperature treatment between 15 - 20,20 - 25 and 25 - 30 ℃. Results showed that the mechanical treatment was best with both the average germination potential and average germination rate of 95.3%. Also,with the H2SO4 solution,the average germination potential was 91.2%,and the average germination rate was 93.5%. The NaOH solution treatment improved the average germination potential to 79.4% and the average germination rate to 40%. For the temperature treatment,germination was highest when temperatures were between 25 - 30 ℃ with the average germination potential reaching 24.6% and the average germination rate attaining 43.4%. Thus,the mechanical,the 98% H2SO4,or the NaOH solution treatments could improve seed germination of I. pes-caprae.[Ch,2 fig. 4 tab. 18 ref.]
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Key words:
- horticulture /
- Ipomoea pes-caprae /
- seed /
- germination potential /
- germination percentage
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链接本文:
https://zlxb.zafu.edu.cn/article/doi/10.11833/j.issn.2095-0756.2011.01.025

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