摘要
用浓度分别为20,50 mg/L的GA3,NAA,ABA,6-BA涂抹谢花40 d后的毛叶枣(Zizyphus mauritianaLam.)幼果。果实成熟后,测定果实的相关品质。结果表明:(1)20 mg/L NAA能够显著提高毛叶枣果实维生素C、可溶性固形物、蔗糖和有机酸的含量,但对单果重没有影响;20 mg/L 6-BA也能提高果实维生素C、可溶性总糖和蔗糖的含量,但降低了单果重、葡萄糖和果糖的含量;20 mg/L ABA能促进果实增大,提高果实可溶性总糖和有机酸的含量;20 mg/L GA能增加有机酸的含量,但降低了含糖量、单果重及维生素C。(2)50 mg/LNAA处理能提高果实所有品质的含量;50 mg/L ABA和6-BA都能提高含糖量及有机酸,但降低了单果重和维生素C含量;50 mg/L GA能增加单果重、有机酸,但降低了含糖量和维生素C。综合结果表明,20 mg/L浓度处理优于50 mg/L,而且NAA处理对提高毛叶枣果实品质效果比GA3,ABA,6-BA的好。
Young fruit of Zizyphus mauritiana were smeared with plant growth substances, GA3, NAA, ABA or 6-BA, at the concentration of 20 mg/L or 50 mg/L, 40 days after falling of flowers. Under 20 mg/L treatment, NAA was found to enhance the contents of Vitamin C, total soluble solid, sucrose and organic acids significantly without any effect on the single fruit weight; 6-BA increased the content of Vitamin C, total soluble carbohydrates and sucrose but decreased the content of fructose and glucose; ABA promotet the fruit growth and the content of total soluble carbohydrates and organic acids, and; GA increased the single fruit weight, organic acid content, but reduced the sugar and Vitamin C content. Under 50 mg/L treatment, NAA improved all the quality parameters of fruit; ABA and 6-BA enhanced the sugar and the organic acid content, but reduced single fruit weight and Vitamin C content; GA increased single fruit weight and organic acid content, but reduced sugar and Vitamin C content. Overall result indicates that 20 mg/L treatment is better than 50 mg/L treatment, and that NAA is the best among the plant growth substances used for treatment in improving the fruit quality.
出处
《热带作物学报》
CSCD
2008年第4期460-464,共5页
Chinese Journal of Tropical Crops
基金
中国热带农业科学院基金资助(Rky0628)
中国热带农业科学院中央级公益性科研院所基本科研业务专项资助项目(200701)
