盐胁迫对樱桃番茄果实不同发育阶段糖酸组分含量变化的影响  

Effects of Salt Stress on Changes in Sugar and Acid Components of Cherry Tomato Fruits at Different Developmental Stages

作　　者：孙叶烁 张国新[1] 丁守鹏 马瑞萍 SUN Yeshuo;ZHANG Guoxin;DING Shoupeng;MA Ruiping(Coastal Agriculture Institute,Hebei Academy of Agriculture and Forestry Sciences,Tangshan 063299,Hebei,China)

机构地区：[1]河北省农林科学院滨海农业研究所,河北唐山063299

出　　处：《中国蔬菜》2023年第3期92-97,共6页China Vegetables

基　　金：河北省农林科学院基本科研业务费项目(2021010102);河北省农林科学院科技创新专项(2022KJCXZX-BHS-7);河北省省级科技计划项目(20326910D)。

摘　　要：以樱桃5号为试材,研究不同含盐量〔0.05%(CK)、0.15%(T1)、0.30%(T2)、0.45%(T3)、0.60%(T4)〕土壤条件下樱桃番茄果实发育过程中糖、酸类物质含量的变化及对植株生长的影响。结果表明:盐胁迫下,樱桃番茄果实发育过程中各阶段果实果糖含量均高于对照;葡萄糖含量大体上随果实发育进程逐渐升高,且在进入破色期后均高于对照;蔗糖含量呈先升高后降低的变化趋势,除T1处理红熟期果实外,其他处理蔗糖含量均高于对照;柠檬酸含量均呈先升高后降低的变化趋势,转色期、红熟期T2处理柠檬酸含量最高,且在红熟期显著高于对照;苹果酸含量呈先降低后升高的变化趋势,而对照苹果酸含量则持续降低。表明盐胁迫能够促进樱桃番茄果实中葡萄糖、果糖、蔗糖、柠檬酸、苹果酸等物质的积累。低浓度盐胁迫(含盐量0.15%)下樱桃番茄植株生长正常,且单果质量与对照无显著差异,但高浓度盐胁迫(含盐量0.60%)下植株生长显著受抑制,单果质量显著下降。Taking cherry tomato as experimental material,this paper studied the changes in sugar and acid contents during cherry tomato fruit development process under different soil saline conditions(CK:0.05%,T1:0.15%,T2:0.30%,T3:0.45%,T4:0.60%);and effect on plant growth.The results showed that the fructose content of cherry tomato fruit at all fruit development stages was higher than that of the contrast under salt stress.While,the glucose content would by and large increase gradually along with the fruit development process and was all higher than that of the contrast after entering color breaking stage.The sucrose content would show a variation trend of first increase and then decrease.Except for T1 at red ripening stage,the sucrose contents of the other treatments were all higher than that of the contrast.The content of citric acid all showed a variation trend of first increase and then decrease.The contents of citric acid in T2 at color change stage and red ripening stage were the highest.Especially at red ripening stage,it was significantly higher than that of the contrast.The content of malic acid showed a variation trend of first decrease and then increase.While,the content of malic acid of the contrast would continue to decrease.The results indicated that salt stress could promote the accumulation of glucose,fructose,sucrose,citric acid,malic acid,etc.substances in cherry tomato fruit.Under low concentration salt stress(0.15%salt content),cherry tomato plant would grow normally,and there was no significant difference in single fruit weight between that of the contrast.But,under high concentration salt stress(0.60%salt content),plant growth was significantly inhibited,and single fruit weight was notably decreased.

关 键 词：樱桃番茄 盐胁迫 发育阶段 糖酸组分 

分 类 号：S641.2[农业科学—蔬菜学]