冷冻宝对低温胁迫下黄瓜幼苗抗冷性及产量的影响

Effects of "Lengdong-bao" on the Yield and Cold Resistance of Cucumis sativus Seedlings under Low Temperature Stress

以黄瓜品种津春4号(Cucumis sativus cv Jinchun 4)为试材,研究了在低温胁迫下使用非激素类抗冷剂冷冻宝对其产量的影响。结果表明,2.50 g·L-1冷冻宝浓度处理的黄瓜幼苗,在低温6℃±0.2℃胁迫下,可使叶片可溶性糖的含量显著增加,丙二醛含量降低,提高幼苗的抗冷性,并具有明显的促成和增产作用。从产投比考虑,冷冻宝的最适使用浓度为2.50 g·L-1。

Effects of ＂Lengdong-bao＂ on the growth of Cucumis sativus cv Jinchun 4 under low temperature stress were studied.The result showed that with the treatment of ＂Lengdong-bao＂ under the temperature 6℃±0.2℃ the content of soluble sugar in C.sativus leaves increased significantly,the contents of MDA decreased and the cold resistance improved.The op-timal concentration was 2.50 g·L^-1.