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以哈斯油梨（ＰｅｒｓｅａａｍｅｒｉｃａｎａＭｉｌｃｖ．Ｈａｓｓ）胚和抗根腐病砧木托马斯（Ｐ．ａｍｅｒｉｃａｎａＭｉｌｒｏｏｔｓｔｏｃｋＴｈｏｍａｓ）茎段及大叶桉（ＥｕｃａｌｙｐｔｕｓｒｏｂｕｓｔａＳｍｉｔｈ）组培苗茎尖为试材，在１／２ＭＴ（１／２无机盐＋有机物＋２％蔗糖＋０．９％琼脂）附加不同浓度（０，５０，１００，３００，５００，７００，１０００ｍｇ·Ｌ－１）的氯化胆碱的培养基上培养，结果表明适宜浓度的氯化胆碱可显著提高两种木本植物组培苗的生长，刺激发根和根的伸长，可使砧木茎段上处于“休眠”状态的腋芽大量萌发；７种浓度中以５００ｍｇ·Ｌ－１的浓度处理效果最为显著
The shoot tip of the tissue culture plantlets of Persea mericana Milcv. Hass and the roots of P.americana Milrootstock Thomas and Eucalyptus robusta Smith were used as test materials, Salt + organic matter + 2% sucrose + 0.9% agar) supplemented with different concentrations of choline chloride (0,50,100,300,500,700,1000mg · L-1) medium, the results show that the appropriate concentration of Choline chloride can significantly increase the growth of tissue culture seedlings of two woody plants, stimulating the elongation of roots and roots, and allowing large numbers of axillary buds to germinate in the “dormant” state on the stems of rootstocks; 500mg · L-1 concentration of the most effective treatment