紫果型黑蕊猕猴桃种子萌发特性研究

对采收的紫果型黑蕊猕猴桃(Actinidia melanandra)种子进行了不同温度、不同层积时间和不同浓度赤霉素处理的发芽试验,结果表明,不同温度的种子发芽率有极显著差异(p<0.01),多重比较显示平均发芽率结果为23℃>18℃>28℃>13℃,23℃的发芽率为72.67%。不同层积时间的种子发芽率有极显著差异(p<0.01),多重比较显示发芽率60 d>45 d>75 d>30 d>0,层积60 d的平均发芽率为79.67%。不同浓度赤霉素处理的种子发芽率有极显著差异(p<0.01),多重比较显示发芽率600 mg·L^-1>900 mg·L^-1>300 mg·L^-1>0,600 mg·L^-1的发芽率最高,为14%。紫果型黑蕊猕猴桃种子最佳萌发条件为:温度23℃,低温层积60 d,600 mg·L^-1的赤霉素浸泡种子。

Study on Seed Germination Characteristics of Actinidia melanandra

The seed of harvested Actinidia melanandra germination experiments were conducted at different temperatures, different stratification time and different concentrations of Gibberellin. The results showed that there was a very significant difference in seed germination rate of different temperatures(p<0.01). Multiple comparison showed the results of an average seed germination rate was 23 ℃>18 ℃>28 ℃>13 ℃, the seed germination rate was 72.67% in 23 ℃. The germination rate of seeds with different stratification time was significantly different(p<0.01), multiple comparisons showed that the seed germination rate was 60 days>45 days>75 days>30 days>0, and the average germination rate was 79.67% for 60 days of stratification. The germination rate of the seeds treated with gibberellin at different concentrations was significantly different(p<0.01). Multiple comparisons showed that the seed germination rate was 600 mg·L^-1>900 mg·L^-1>300 mg·L^-1>0,600 mg·L^-1, and the seed germination rate of 600 mg·L^-1 was the highest at 14%.The optimal germination conditions of Actinidia melanandra seeds were: the temperature of 23 ℃, low temperature stratification for 60 days, gibberellin of 600 mg·L^-1 soaking seeds.