摘要
在梨树萌芽期用80mg/L青鲜素、20～15mg/L促生灵和125mg/L缩节安,延迟初梨花期6～7d,避免霜害.花粉室温保存15d,萌发率达50%以上,为尚未受冻的花朵进行人工授粉赢得时间.人工受粉后喷施100mg/L赤霉素,20mg/L钼酸铵,100mg/L硼酸,促进花粉萌发.霜冻后对部分柱头受冻而子房完好的花朵喷施40mg/L赤霉素+25mg/L促生灵、100mg/L赤霉素+40mg/L细胞分裂素、50mg/L赤霉素+150mg/L链霉素,可显著促进早酥梨和五九香梨单性结实.
After spraying MH （80mg/L）, 4-CPA （20 ～ 15 mg/L） or DPC （125mg/L） respectively, the early blooming period of pear was postponed for 6～ 7 days that avoided late frost injuring. The germination rate was more than 50% when pollen was kept at room temperature for 15 days that would provide enough time to pollinate the un-injured flowers. The pollen germinate was improved by spraying GA3 （100 mg/L）, AM （20 mg/L） or Boric Acid （100 mg/L） after artificial pollination. Spraying GA3（40 mg/L） combined with 4-CPA（25mg/L）, GA3（100 mg/L） with CPPU（40mg/L） or GA3 （50 mg/L） with SM （150 mg/L） could improve the parthenocarpy of some flowers of Zaosu or Wujiuxiang pear variety after frost injury.
出处
《农业科学研究》
2005年第4期30-32,共3页
Journal of Agricultural Sciences
基金
宁夏自然科学基金资助项目(A1018)
关键词
梨树
生长调节剂
物候期
pear
plant growth regulator
phenological period
