滨海盐碱土壤盐分离子对番茄钙吸收的影响  

Effects of Salt Ions on the Calcium Absorption of Tomato in Coastal Saline-alkali Soil

作　　者：赵杰[1] 肖辉[1] 王立艳[1] 李梦琦 张慧 项娟 ZHAO Jie;XIAO Hui;WANG Liyan;LI Mengqi;ZHANG Hui;XIANG Juan(Tianjin Institute of Agricultural Resources and Environment,Tianjin 300192)

机构地区：[1]天津市农业资源与环境研究所,天津300192

出　　处：《北方园艺》2021年第14期1-7,共7页Northern Horticulture

基　　金：天津市农业科学院院长基金资助项目(17005);天津市科技计划资助项目(15ZXZYNC00020);国家科技支撑计划资助项目(2013BAD05B08)。

摘　　要：以“勇士808”号番茄为试材,采用阳离子(Na^(+)、K^(+)、Mg^(2+)、Ca^(2+))和阴离子(CO_(3)^(2-)、HCO_(3)^(-)、SO_(4)^(2-)、Cl^(-))正交设计实验,研究了土壤中盐分离子对番茄植株根、茎、叶钙离子吸收的影响,以期揭示滨海盐碱地番茄生理缺钙机理。结果表明:阳离子中Na^(+)与番茄植株根、茎、叶中钙含量均呈负相关,且影响显著,低浓度的Na^(+)有利于根部从土壤中吸收Ca^(2+);K^(+)与番茄植株各器官中钙含量呈负相关,而Ca^(2+)和Mg^(2+)则与番茄植株各器官中钙含量呈正相关。阴离子中CO_(3)^(2-)与番茄植株根、茎、叶的钙含量均呈负相关,且影响显著;其余阴离子对植株钙含量影响不显著。Taking ‘Warrior 808’tomato as test material,orthogonal experiments were conducted with cations(Na^(+),K^(+),Mg^(2+),Ca^(2+))and anions(CO_(3)^(2-),HCO_(3)^(-),SO_(4)^(2-),Cl^(-))to study the effects of salt ions on the calcium absorption of tomato,in order to reveal the physiological mechanism of calcium deficiency in tomato in the saline-alkali soil.The results showed that Na^(+)had a significant negative effect on the calcium content in the roots,stems and leaves of tomato,and lower concentration of Na^(+)favored the root to absorb Ca^(2+)from the soil.K^(+)was negatively correlated with calcium content in tomato.However,Mg^(2+)and Ca^(2+)were positively correlated with calcium content in tomato.Among anions,CO_(3)^(2-)was negatively correlated with the calcium content significantly in the roots,stems and leaves of tomato,other anions had no significant effect on calcium content of plants.

关 键 词：滨海盐碱地 盐分离子 番茄钙吸收 脐腐病 

分 类 号：S641.2[农业科学—蔬菜学]