干热处理对不同品种南瓜种子的影响

Effects of Dry Heat Treatment on Seeds of Different Pumpkin Cultivars

选择5个不同品种的南瓜种子,对其进行干热处理,以未处理同品种南瓜种子为对照。通过测定种子的发芽率、发芽势、发芽指数和出苗率等,探讨干热处理对不同南瓜种子萌发的影响。试验结果表明,干热处理对于不同品种的南瓜种子的影响不大,干热处理会使南瓜种子水分有缺失,但在处理结束后,水分会慢慢恢复,且处理前后的南瓜种子的发芽率和出苗率等都没有因为干热处理而产生显著差异。

We treated the seeds of five different pumpkin cultivars at 72℃ for five days, and took the untreated seeds of the five cultivars as the control treatments respectively. And we studied the effects of the dry heat treatment on the seed germination of pumpkin by determining the germination rate, germination potential, germination index and seedling-emergence rate. The results showed that, the dry heat treatment had no significant effect on the seeds of different pumpkin cultivars, and it made the water content of pumpkin seeds decreased, but the water content was slowly increased a week after the treatment, in addition, the germination rate and seedling-emergence rate of the treated seeds had no significant difference with those of the untreated seeds.