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为了解甘蔗及其近缘属植物花粉水分含量状况及干燥处理与甘蔗花粉含水量变化的关系,1990～1991年,测定了13个甘蔗野生种及近缘属植物无性系花粉的含水量,并对自然、空气抽湿机、硅胶3种不同干燥方法进行研究。结果表明,斑茅(Saccharum arundinaceum)鲜花粉含水量集中在20～25％,个别无性系达40％以上;割手密(Saccharum spontaneum)为26～44％;芒(Miscanthus spp.)的鲜花粉含水量约为36％。3种不同干燥方法的处理效果比较,表现出硅胶>抽湿机>自然的趋势。干燥处理第1个小时,花粉水分散失最快,其花粉含水量与处理前花粉含水量比较的差异达1％极显著统计水准,而处理2h后花粉水分散失趋于平缓。因此,甘蔗花粉低温贮藏前的干燥处理以2h为宜。
In order to understand the pollen moisture content of sugarcane and its related genera and the relationship between the drying process and the change of pollen water content in sugarcane, the water content of 13 sugarcane wild and related species of clonal pollen was determined from 1990 to 1991 Natural, air dehumidifier, silica gel three different drying methods were studied. The results showed that the water content of fresh pollen of Saccharum arundinaceum was concentrated in 20-25%, the individual clones reached more than 40%, the Saccharum spontaneum was 26-44%, the fresh pollen of Miscanthus spp. The water content is about 36%. Three kinds of different drying methods of treatment effect comparison, showing the silicone> dehumidifier> natural trend. The first hour of drying showed the fastest pollen water loss. The difference of pollen water content and pollen water content before treatment reached 1% extremely significant statistical level, but the pollen water loss tended to be gentle after 2 hours of treatment. Therefore, sugarcane pollen drying before storage at low temperature 2h is appropriate.