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玉米花粉属三核型,离开母株24小时之后(在室温条件下),生活力几乎完全丧失。随着低温冷冻技术的发展,在超低温(-196℃)条件下较长时间地保存玉米花粉已成为可能。Barnabas (1981) 报道玉米花粉在液氮(-196℃)中保存一年后,还有29.2%的授粉能力。本文报道玉米花粉超低温(-196℃)保存一年后的结实能力。
Corn pollen is a trinucleus, leaving the mother plant 24 hours later (at room temperature), almost completely lost viability. With the development of cryogenic freezing technology, it has become possible to preserve corn pollen for a long time under ultra-low temperature (-196 ℃). Barnabas (1981) reported that 29.5% pollination capacity was observed after one year of storage of corn pollen in liquid nitrogen (-196 ° C). This article reports the fruiting ability of maize pollen stored at cryogenic temperature (-196 ℃) for one year.