Abstract: Four biostimulants（seaweed extract，amino acid，chitosan and‘Haijingling’）were selected to study the effects of different biostimulants on the growth，yield and quality of‘ Majianghongsuan’using field experiments．Different spraying concentrations were set during the green turning period of‘Majianghongsuan’．Different spraying times were set throughout the entire growth period of ‘Majianghongsuan’（i.e.，spraying once during the seedling stage，spraying once during the seedling and bolting stages，respectively，and spraying once during the seedling，bolting，and bulb expansion stages，respectively）．The results showed that spraying 0.25 g·L-1 seaweed extract，1 g·L-1 amino acid，and 0.5 g·L-1‘ Haijingling’on the leaves significantly increased plant height，pseudostem length and pseudostem thickness of ‘Majianghongsuan’．Bulb yield and soluble sugar content increased by 15.08%-19.42% and 19.17%-26.66%，respectively，when applying the biostimulants as compared with the control．Spraying seaweed extract，amino acid and‘Haijingling’ for three times significantly increased the plant height，pseudostem thickness，leaf width and bulb yield of ‘Majianghongsuan’，where the yield of bulbs was positively related to the apraying times of biostimulants．The contents of soluble sugar，soluble protein，VC and allicin in bulb were increased by four biostimulants in varying degrees during the experiment of spray times．In summary，0.25 g·L-1 seaweed extract or 1 g·L-1 amino acid or 0.5 g·L-1‘Haijingling’ during the seedling stage can increase production and quality of‘ Majianghongsuan’．Spraying biostimulants during the seedling，bolting and bulb expansion stages has the best effect in increasing garlic yield．

Key words: biostimulant, ‘Majianghongsuan’, growth, yield, quality

摘要： 采用田间试验方法，以麻江红蒜为试材，选用4 种生物刺激素（海藻精、氨基酸、甲壳丰、海精灵），在红蒜苗期设置不同喷施浓度处理以及在全生育期设置不同喷施次数处理（苗期喷施1次、苗期和抽薹期各喷施1次、苗期、抽薹期和鳞茎膨大期各喷施1次），研究生物刺激素对麻江红蒜生长及产量和品质的影响。结果表明：叶面喷施0.25 g·L-1 海藻精、1 g·L-1氨基酸、0.5 g·L-1海精灵，麻江红蒜的株高、假茎长、假茎粗显著增加，鳞茎产量和可溶性糖含量分别较对照提高15.08%～19.42%和19.17%～26.66%。喷施3 次海藻精、氨基酸、海精灵可显著提高麻江红蒜的株高、假茎粗、叶宽和鳞茎产量。喷施次数试验中，4种生物刺激素对鳞茎可溶性糖、可溶性蛋白、VC和大蒜素含量均有不同程度的提高效果。综上，在麻江红蒜苗期喷施0.25 g·L-1海藻精、1 g·L-1氨基酸或0.5 g·L-1海精灵，增产提质效果好。在麻江红蒜全生育期（苗期、抽薹期、鳞茎膨大期）喷施3次生物刺激素，增产效果更佳。

关键词: 生物刺激素, 麻江红蒜, 生长, 产量, 品质