学科分类
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1 个结果
  • 简介:Inordertoprobethedeathreasonofterminalbudsandcarryouttrunkextensionbyusinglateralbuds,thetemperaturecharacteristicsofdormancydevelopmentofterminalandlateralbudsinPaulowniatomentosaxp.fortunei33wereinvestigatedbyraisingcuttingbranchesondifferentdateat25℃and15℃.Theresultswereasfollows:①Thedeathreasonofterminalbudsandthefirstpairoflateralbudswasitselfecologicaladaptingstrategy,nottheinjuryofearlyfrostandfreezing;②Thelateralbuds2,3and4hadobtainedthefeatureofwinterdormancy,andcouldsurvivefromcoldwinter,andwidenitspossibletemperaturerangeofsproutingtolowertemperaturebyexperiencingwinterchilling;③Thelateralbuds2,3and4couldsproutatthesametimeinspring,butitwasdifficulttosproutforotherlateralbuds;④Thesproutingofupperlateralbudscouldrestrictthesproutingoflowerlateralbudsat25℃,butnotat15℃.

  • 标签: 泡桐 侧芽 顶芽 冬眠 温度 生物学特性