菲油果的花粉贮藏及萌发特性

Study on Characteristics of Pollen Germination and Storage of Feijoa sellowiana

以菲油果(Feijoa sellowiana Berg)4个品种的花粉为试验材料,研究其在不同贮藏条件下的花粉生活力变化。结果表明,菲油果新鲜花粉的萌发率都较高,品种Mammoth、Coolidge、Triumph和Unique的萌发率分别为75.07%、59.81%、66.31%、61.32%。在常温下贮藏,4个品种的花粉生活力下降极快,不到7d花粉的生活力就全部丧失,不宜常温贮藏;在冷藏(4℃)条件下,花粉生活力下降较缓慢,至第21天时花粉的生活力才基本丧失;在冷冻(-20℃)贮藏条件下,花粉生活力下降缓慢,至第28天时仍保持有活力,萌发率依次为29.62%、17.46%、18.33%和40.92%。

Pollen viability changes of four Feijoa sellowiana Berg cultivars have been studied as experimental materials under different storage conditions.The results showed the germination rates of four F.sellowiana cultivars of fresh pollen were all comparatively highly,and the germination rates of F.sellowiana cv.Mammoth,F.sellowiana cv.Coolidge,F.sellowiana cv.Triumph and F.sellowiana cv.Unique were 75.07%,59.81%,66.31%,61.32%.At room temperature storage,four kinds of pollen viability declined extremely quickly,and pollen viability lose completely less than a week,and pollen should not be stored at room temperature.In the refrigerator（4℃） conditions,pollen viability decreased more slowly,and the pollen lost viability until 21 days.In the freezer（-20℃） storage conditions,pollen viability decreased the slowest.The pollen remained viable until 28 days.Pollen germination rates of F.sellowiana cv.Mammoth,F.sellowiana cv.Coolidge,F.sellowiana cv.Triumph,and F.sellowiana cv.Unique were 29.62%,17.46%,18.33% and 40.92% respectively.