耐盐砧木嫁接对西瓜幼苗抗盐特性的影响  

EFFECT OF SALT-TOLERANT STOCK GRAFTING ON THE SALT-TOLERANT CHARACTERISTICS OF WATERMELON SEEDLINGS

作　　者：张云起[1] 刘世琦[1] 王海波 

机构地区：[1]山东农业大学园艺学院,泰安271018 [2]东营市科技局,东营257091

出　　处：《上海农业学报》2004年第3期62-64,共3页Acta Agriculturae Shanghai

基　　金：上海市科技兴农重点攻关项目 (农科攻字 2 0 0 1第 5 -17号)

摘　　要：就耐盐砧木嫁接对西瓜幼苗抗盐特性的影响作了探究。结果表明 ,采用耐盐砧木嫁接能够显著改善西瓜的耐盐性 ,提高西瓜幼苗的耐盐性 ,嫁接苗在高盐胁迫下能够维持较低的相对电导率和较高的根系活力 ,较高的过氧化物酶 (POD)活性和较低的超氧化物歧化酶 (SOD)活性 ;同时 ,以耐盐砧木嫁接可使幼苗游离脯氨酸含量增加 ,提高西瓜幼苗的抗盐性。Effects of salt-tolerant stock grafting on the salt-tolerant characteristics of watermelon seedlings were studied. The results showed that grafting with salt-tolerant stock could improve the salt-tolerant characteristics of watermelon obviously. The grafted watermelon seedlings could maintain lower relative elective conductivity and higher root vigor, higher POD activity and lower SOD activity. Grafting with salt-tolerant stock could make free proline content of the seedlings increase and so enhanced the salt-tolerant characteristics of watermelon seedlings.

关 键 词：耐盐砧木 嫁接 西瓜 幼苗 抗盐性 

分 类 号：S651[农业科学—果树学]