Long-term storage. Flowers pollinated with dehydrated pollen stored at subfreezing temperatures for 3 or 9 months exhibited 100% fruit set, but fruit set was only 60% to 70% when flowers were pollinated with pollen stored at 4 °C (data not shown). Generally, for both species, pollen stored at 4 °C yielded smaller fruit than did pollen stored at subfreezing temperatures. The heaviest fruits of Hundatus were produced with pollen stored in liquid nitrogen (Fig. 2). Weight of fruit set by pollen stored at subfreezing temperatures was comparable to that of fruits produced by fresh pollen in commercial orchards (410 ± 48 g for H. undatus and 330 ± 35 g for H. polyrhizus).
Seed number was significantly lower in fruits produced by pollen stored for 9 months at 4 °C than in those produced by pollen kept at subfreezing temperatures, but seed germination was high (≈90%) regardless of storage temperature (Table 1). Similar germination percentages and relationships between fruit FW and seed number were observed for fruits of the two species produced by fresh pollen (Weiss et al., 1994).
红字意思（花朵经脱水后贮藏于零度以下3至9个月的花粉授粉后结果率100%）
Variable（变量） +4 –18 –70 –196 Control（对照组）
H. undatus（白肉火龙果）
Seed no. per fruit（单果种子数） 2538 b 5014 a 5645 a 6067 a 5988 a
Seed germinability（种子发芽率）(%) 94 a 95 a 96 a 94 a 96 a
H. polyrhizus（红肉火龙果）
Seed no. per fruit（单果种子数） 2416 b 5084 a 4784 a 5072 a 4978 a
Seed germinability（种子发芽率）(%) 85 a 91 a --- 90 a 93 a
发表于 2013-12-16 23:11
。安全起见可以先用点干燥剂（如硅胶、氯化钙之类）干燥几个小时再一块保存吧。试验里提到经一小时真空干燥就可以把花粉的含水量基本降到最低值5~10%，但若用普通干燥剂我建议把干燥时间延长几倍，且须把花粉摊薄开来，增加与空气的接触面积，若能用微型风扇在密封容器内加强空气流动，那干燥效果更好。但因为火龙花花粉在室温下的活性保持时间较短，所以也不能消耗太长时间来干燥）刚刚又上网查了一下资料，有文献说花粉如果未经干燥就进行冷冻处理，容易因水份含量过高而出现结冰，从而破坏花粉的活性。所以本人还是建议先干燥一下花粉再放冷冻室吧，好在一般家用冰箱的冷冻室只有零下十多度，花粉不必完全脱水就能抗得住，应该无须用到真空干燥机这类昂贵玩意吧~
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LZ辛苦了!
只要有万分之一希望,都要试一试.或许会碰到惊喜!