摘要
通过不同方法对3种臂形草属牧草种子进行处理,测定发芽率。结果表明,不同处理对提高发芽率的效果差异达极显著水平。其中,对网脉臂形草,以浓硫酸浸泡15 min和100 g/L硝酸钾浸泡6 h为好,平均发芽率在72% 以上;俯仰臂形草经浓硫酸浸泡15 min,平均发芽率在76% 以上;刚果臂形草则以30% 的双氧水浸泡30 min最好,发芽率为72.7%。因此,通过选择不同处理方法,可达到提高臂形草属的不同牧草品种发芽率的目的。
A germination experiment was made to determine the effect of reagents, concentrations of the reagents and soaking time on the seed germination percentage of three Brachiaria sp. It turned out that the treatments made difference in germination. For B. dictyonera, the seeds immersed into the solution of concentrated sulfuric acid for 15 minutes and potassium nitrate(100 g/L)for 6 hours led to over 72% and 76% of germnation; For B. decumbens, the seeds soaked into the solution of concentrated sulfuric acid for 15 minutes resulted in over 76% of germination; For B. ruziziensis, the optimal treatment was to treat the seeds with 30% hydrogen peroxide solution for 30 minutes, which contributed to 72% of germination. It was concluded that the seed germination percentage of the three Brachiaria sp could be improved by seed treatments.
出处
《热带农业科学》
2004年第2期13-17,共5页
Chinese Journal of Tropical Agriculture
