含羞草种子萌发特性研究

采用浓硫酸酸蚀、烫种、砂磨等不同处理方法对含羞草种子进行萌发试验,测定其发芽率、发芽势及在不同温度下的生长势,探讨含羞草种子的萌发特性。结果表明:未经处理的含羞草种子发芽率为13.6%,硬实率达60.6%;种皮是影响其萌发的主要因素,95℃1min烫种对含羞草种子萌发作用明显,发芽率、发芽势最高,分别为94.3%、92.0%;浓硫酸处理50min也可提高含羞草种子萌发,发芽率、发芽势分别为84.0%,79.7%;砂磨处理发芽率为16.3%,效果不明显;含羞草种子萌发最适温度为30℃。

Study on Seed Germination Characters of Mimosa pudica L.

Germination percentage, germinating energy and the growth at different temperatures and seed germination characteristics of Mimosa pudica were tested by etch of 98% H 2 SO4, scalding method, sanding. The results showed that an un-treated seed germination percentage of Mimosa pudica was 13.6%, rate of hard was 60.6%; the main factor of affecting germination was seed coat. Seed germination percentage was increased by 95℃ 1 min hot-water treating, the germination percentage and germination energy were 94.3%, 92.0%; The germinating ability also was increased by etch of 98% H 2 SO 4 50 min treating, the germination percentage and germination energy were 84.0% and 79.7%; The germination percentage of sanding was 16.3%, the effect was not obvious; Optimum temperature of seed germination for Mimosa pudica was 30℃.