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园艺学报 ›› 2012, Vol. 39 ›› Issue (1): 109-118.

• 蔬菜 • 上一篇    下一篇

硼对“洋葱型”畸形大蒜形成及其生理的影响

张 涛,刘世琦*,孙 齐,陈祥伟,刘颖颖,宋晓红   

  1. (山东农业大学园艺科学与工程学院,作物生物学国家重点实验室,农业部园艺作物生物学重点开放实验室,山东泰安271018)
  • 收稿日期:2011-09-13 修回日期:2011-12-02 出版日期:2012-01-25 发布日期:2012-01-25
  • 通讯作者: 刘世琦

Effects of Boron on the Formation of Onion-type Garlic and Its Change of Physiological Characteristics

ZHANG Tao,LIU Shi-qi*,SUN Qi,CHEN Xiang-wei,LIU Ying-ying,and SONG Xiao-hong   

  1. (College of Horticulture Science and Engineering,Shandong Agricultural University,State Key Laboratory of Crop Biology,Agriculture Ministry Key Laboratory of Horticultural Crop Biology,Tai’an,Shandong 271018,China)
  • Received:2011-09-13 Revised:2011-12-02 Online:2012-01-25 Published:2012-01-25
  • Contact: LIU Shi-qi

摘要: 在水培条件下研究不同硼水平对“洋葱型”畸形大蒜发生率的影响及其生理生化指标的变化。研究结果表明:0和1.5 mg · L-1硼处理均可诱导“洋葱型”畸形大蒜的发生,降低鳞茎的干、鲜质量,而0.5和1.0 mg · L-1硼处理可防止“洋葱型”畸形大蒜的形成;发生“洋葱型”畸形大蒜的植株与正常植株相比衰老相对延缓,在鳞茎膨大后期其叶身的硼含量、色素含量、净光合速率(Pn)、蒸腾速率(Tr)、气孔导度(Gs)、抗氧化酶(POD、CAT和SOD)活性均高于同处理的正常植株;同时,“洋葱型”畸形大蒜叶身和假茎的可溶性糖、可溶性蛋白和游离氨基酸含量也均显著高于正常植株,但其鳞茎的上述指标比同处理的正常植株分别降低30.45%和51.99%、152.26%和258.34%、82.01%和56.09%。

关键词: 大蒜, “洋葱型”畸形大蒜, 硼, 生理特性

Abstract: Effect of different boron levels on the occurring rate of onion-type garlic and its change of physiological-biochemical index were studied by nutrient solution. The results showed that the onion-type garlic can be induced when boron content were 0 or 1.5 mg · L-1,as well as fresh and dry weight of bulb decreased at these concentrations. However,when the boron content were 0.5 and 1.0 mg · L-1 in nutrient solution the onion-type garlic can be prevented. Compared with normal plants,the onion-type garlic senescence was slower. During the late growing stage of bulb,the boron content,photosynthetic pigment contents,photosynthetic parameter(Pn,Tr,Gs)and the activity of protection enzyme(POD,CAT,SOD)in leaf were higher than the normal plants which in the same condition as the onion-type garlic. It can be respectively increased the content of soluble sugar,soluble protein and free amino acids which include in leaf laminas and pseudostems of onion-type garlic,when the boron in nutrient solution were 0 mg · L-1 and 1.5 mg · L-1. And on these concentrations,the content of soluble sugar,soluble protein and free amino acids in bulb reduced by 30.45% and 51.99%,152.26% and 258.34%,82.01% and 56.09%.

Key words: garlic, onion-type garlic, boron, physiological characteristics

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