ACTA AGRICULTURAE BOREALI-SINICA

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The Effect of Foliar Spraying Amino Acid on Growth and Qual ity of Non-heading Chinese Cabbage

GAO Xiu-rui, CHEN Gui-lin, PAN Xiu-qing, WU Yan-rong   

  1. 1.CHEN Gui-lin,PAN Xiu-qing,WU Yan-rong,Commercial Crops Institute,Hebei Academy of Agriculture and Forestry Sciences,Shijiazhuang 050051,China;
    2.College of Horticulture,Hebei Agriculture University,Baoding 071001,China
  • Received:2003-06-20 Published:2003-12-31

Abstract: Before harvest,the research was carried out on grow th and quality of nonheading Chinese cabbageby foliar spraying amino acid(g lycine,isoleucine and proline ). The main result s w ere as follow s: it s grow thchanged slightly,but the mixture of g ly cine and isoleucine increased yield signif icant ly (p< 0. 05). Foliar sprayingamino acid enhanced content of nitrate in leaf blades and pet ioles of non-heading Chinese cabbage,how everthe mix ture of three kinds of amino acid had reducing effect. Soluble protein in leaves was no signif icant differenceobserved,f ree amino acid increased 65. 82%~ 84. 81%,but soluble sugar decreased markedly (p< 0. 05).N it rate reductase act ivity (NRA) in leaves became weak,content of tota-l N decreased.

Key words: Non-heading Chinese cabbag e, Amino acid, Ait rate, Quality

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Cite this article

GAO Xiu-rui, CHEN Gui-lin, PAN Xiu-qing, WU Yan-rong. The Effect of Foliar Spraying Amino Acid on Growth and Qual ity of Non-heading Chinese Cabbage[J]. ACTA AGRICULTURAE BOREALI-SINICA, doi: 10.3321/j.issn:1000-7091.2003.z1.040.