对黑莓(Rubusspp.)9个品种的开花物候期、花器官性状及花粉生活力进行了观察,并对其花粉的贮藏条件进行了初步研究。结果表明,黑莓开花期为4月中旬至6月初,花期长19~35 d;每株有花穗50.67~127.33个,花穗长8.30~14.95 cm,每穗有花4.95~7.63朵;花色为白色、粉红色和红色,花冠直径3.07~5.28 cm。黑莓不同品种的花期、花穗数量与大小、花色和花冠大小等均存在显著差异。不同黑莓品种的花粉萌发率可达50.29%~85.16%;随贮藏时间的延长,花粉萌发率逐渐下降;在0℃~4℃、相对湿度10%~20%条件下密封贮存,有利于保持花粉的生活力。

Flowering characteristics and phenology, floral organ characters, pollen vitality and pollen storage condition of different cultivars of blackberry (Rubus spp.)are studied. The results show that the blooming stage of blackberry is 19- 35d from the second ten-days of April to the beginning of June. Inflorenscence number per individual, inflorenscence length and the flower number in per inflorenscence is 50.67- 127.33, 8.30- 14.95cm and 4.95- 7.63 respectively. The colour of flower is white, pink and red, and the diameter of corolla is 3. 07- 5. 28cm. The florenscence, number and size of anthotaxy, petal color and corolla size are different significantly among the nine cultivars. The pollen germination rate of different cultivars is 50.29%- 85.16%, which decreases gradually with storage time expanded. The storage condition of 0℃ - 4℃ , relative humidity10% - 20%, is better for keeping pollen vitality.