北美鹅掌楸

北美鹅掌楸种子破眠技术研究

Study on Dormant Control of Liriodendron tulipifera Seed

假植对北美鹅掌楸生长量的影响分析研究

Analysis of effects on the growth of Liriodendron tulipifera which after Staying in the transplanting plot

北美鹅掌楸种子在裸层积过程中，激素含量变化比较复杂。IAA、GA3、ZR的含量出现波动性，但IAA／ABA、GA3／ABA、ZR／ABA的比值呈上升趋势。

During the process of naked stratification at low temperature , hormone contents have a complex changing trend , but IAA / ABA , GA3 / ABA and ZR / ABA ratio rise rapidly .

本研究认为，低温沙藏层积处理180d和裸层积处理120d打破北美鹅掌楸种子休眠的效果最好，处理后的发芽率分别为88%和90%。

The 180d low temperature stratification treatment and 120d naked stratification treatment are he best way to break seed dormancy .

北美鹅掌楸组培快繁技术体系的建立

Establishment of Rapid In-vitro Propagation System of Liriodendron tulipifera

两种层积处理方式对北美鹅掌楸种子4种内源激素物质含量变化的影响

Effect of Stratification on Changes of Endogenous Hormone Contents in Seeds of Liriodendron tulipifera

北美鹅掌楸的主要有害生物

The Major Harmful Organisms of Liriodendron tulipifera

赤霉素处理能促进北美鹅掌楸种子的萌发，但不能明显地打破种子的休眠。

The treatment with GA3 can improve the seed germination , but it can not break seed dormancy completely .

笔者认为引种北美鹅掌楸的目的在于丰富种间杂交的育种资源，而不在于丰富本地区的造林树种。

The author suggests that introduction of tulip tree mainly aim to richen breeding resources for interspecific crossing , not plantation species .

一种由粘土逐层沉积而成的沉积岩。两种层积处理方式对北美鹅掌楸种子4种内源激素物质含量变化的影响

A sedimentary rock formed by the deposition of successive layers of clay . Effect of Stratification on Changes of Endogenous Hormone Contents in Seeds of Liriodendron tulipifera

北美鹅掌楸实生苗苗期生长性状变异分析南方红豆杉幼林生长种源变异和速生种源初选

Analysis on variations of the growth characters of seedlings breeded by the seeds of Liriodendron tulipifera during Seedling-period Young Growth Variation and Selection of Fast-growing Taxus chinensis var. mairei Provenances