• ISSN 1008-505X
  • CN 11-3996/S
肖丽, 孙宁波, 隋方功. 氯对白菜幼苗的生长及养分吸收的影响[J]. 植物营养与肥料学报, 2008, 14(3): 608-614. DOI: 10.11674/zwyf.2008.0333
引用本文: 肖丽, 孙宁波, 隋方功. 氯对白菜幼苗的生长及养分吸收的影响[J]. 植物营养与肥料学报, 2008, 14(3): 608-614. DOI: 10.11674/zwyf.2008.0333
XIAO li, SUN Ning-Bo, SUI Fang-Gong. Effects of chloride on the growth and nutrient absorption of Brassica campestris L. ssp. Pekinesis (Lour)Olsson[J]. Journal of Plant Nutrition and Fertilizers, 2008, 14(3): 608-614. DOI: 10.11674/zwyf.2008.0333
Citation: XIAO li, SUN Ning-Bo, SUI Fang-Gong. Effects of chloride on the growth and nutrient absorption of Brassica campestris L. ssp. Pekinesis (Lour)Olsson[J]. Journal of Plant Nutrition and Fertilizers, 2008, 14(3): 608-614. DOI: 10.11674/zwyf.2008.0333

氯对白菜幼苗的生长及养分吸收的影响

Effects of chloride on the growth and nutrient absorption of Brassica campestris L. ssp. Pekinesis (Lour)Olsson

  • 摘要: 采用土培实验,研究了外源氯(CK,低氯,中氯,高氯)对大白菜 Brassica campestris L. ssp. Pekinesis (Lour)Olsson幼苗叶绿素含量、根系活力以及对N、P、K养分吸收、累积的影响。结果表明:低浓度氯处理对大白菜幼苗没有明显的影响。中氯和高氯处理,都显著降低了白菜幼苗生物量、叶绿素含量和根系活力。随着氯浓度的升高,白菜幼苗叶片和根Cl-含量显著升高,中氯处理Cl-累积量最高,过量的氯降低了N、P、K养分在白菜幼苗体内的累积。氯胁迫抑制作物根系活力和光合作用从而减少主动养分的有效供应是造成生物量降低的主要原因。

     

    Abstract: In the greenhouse, pot experiments were conducted to study the effects of Chloride (0, 0.1, 0.15, 0.2 mol/L) on the growth, root activities, leaf chlorophyll content, Cl-1, N, P and K contents and accumulations of the Chinese cabbage Brassica campestris L. ssp. Pekinesis (Lour) Olsson seedlings. The results showed the growth of seedlings were not significantly different between treatment of low Cl and control, the biomass, leaf chlorophyll content and root activities were decreased significantly under middle and high Cl conditions. Cl-content in shoot and root increased significantly with the Cl-concentration, but the Cl- accumulation under middle Cl- was higher than those of other treatments. Chloride stress decreased the accumulations of N, P and K, indicating that Chloride stress restrained root activities and photosynthesis, reduced chlorophyll content, decreased the absorption and transportation of nutrient, and as a result, restrained the normal growth of plant。

     

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