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培养在5％、10％、15％蔗糖溶液中的大山楂花粉粒均能较好地萌发,其中以培养在10％蔗糖溶液中的萌发率较高。适当浓度的硼对大山楂花粉粒萌发有明显的促进作用,10％蔗糖溶液加入50ppm硼酸对花粉粒萌发率的提高最显著。温度对大山楂花粉粒的萌发有显著的影响,培养在10％蔗糖溶液中的花粉粒,在25℃时萌发率最高,温度过高或过低均能影响花粉粒的萌发率。大山楂金星绵品种内授粉,花粉粒萌发是正常的。品种问授粉,大山楂品种莱西绵山楂的花粉授在金星绵的柱头上,萌发率则较低。
The hawthorn pollen grains cultured in 5%, 10%, 15% sucrose solution germinated better, with higher germination rates in 10% sucrose solution. Appropriate concentrations of boron on hawthorn pollen germination significantly promoted the 10% sucrose solution with 50ppm boric acid on the pollen grains germination rate increased the most significant. The temperature had a significant effect on the germination of pollen grains of Hawthorn hawthorn. The pollen grains cultured in 10% sucrose solution had the highest germination rate at 25 ℃ and the germination rate of pollen grains could be affected by the temperature too high or too low. Hawthorn Venus species pollination, pollen grains germination is normal. Varieties of pollination, large varieties of hawthorn Lacey Mow hawthorn pollen granted on the stigma of Venus, the germination rate is lower.