植物生长调节物质对黄金梨花粉萌发和花粉管生长的影响

Effects of Plant Growth Regulator on Pollen Germination and Pollen tube Growth of Whangkeumbae(Pyrus pyrifolia)

目的:研究不同质量浓度的6-BA、NAA、2,4-D、多效唑等4种植物生长调节物质对黄金梨花粉萌发和花粉管生长的影响。方法:配制含有不同浓度的生长调节物质的花粉液体培养基,对采集的黄金梨花粉进行培养,研究不同浓度植物生长调节物质对花粉萌发和花粉管生长的影响。结果:在所使用的植物生长调节物质的浓度范围内:(1)较低浓度的6-BA和2,4-D能促进花粉萌发和花粉管生长,但超过一定浓度时起抑制作用;(2)NAA和多效唑均对花粉萌发和花粉管的生长表现出抑制作用。结论:6-BA和2,4-D促进黄金梨花粉萌发与花粉管生长的最适宜浓度分别为10mg/L和5mg/L。

Objective：Different concentration growth regulating substances of 6-BA,NAA,2,4-D and PP 333 on pollen germination and pollen tube growth were studied with pyrus pyrifolia＂Whangkeumbae＂.Method：Pollen cultivating liquid medium were confected,with different mass concentrations of 6-BA,NAA,2,4-D and PP 333.To research the effects of different concentrations plant growth regulating substances on pollen germination and pollen tube growth.Result：Results showed that the low concentration of 6-BA and 2,4-D stimulated the pollen germination and pollen tube growth,but when the concentration up to certain value,pollen growth and pollen tube growth were inhibited.NAA and PP333 had inhibition on pollen germination and pollen tube growth.Conclusion：10 mg /L 6-BA and 5 mg /L 2,4-D stimulated the pollen germination and pollen tube growth.