黄腐酸、硝酸钙及其复配浸种对盐胁迫下青稞种子萌发的影响  

Effects of Fulvic Acid and Calcium Nitrate Andthe Combined Treatment on the Seed Germination of Hulless Barley under Salt Stress

作　　者：段辉国[1] 李彩霞[1] 向彬方 王彬[1] 熊婷[1] 

机构地区：[1]内江师范学院生命科学学院,四川内江641199 [2]内江市第三中学,四川内江611130

出　　处：《内江师范学院学报》2014年第8期38-40,共3页Journal of Neijiang Normal University

基　　金：四川省教育厅重点研究项目(09ZA054);内江师范学院大学生科研项目(13NSD-74);内江师范学院生物化学与分子生物学重点建设学科项目(内师院发[2012]96号)

摘　　要：分别用100mg/L黄腐酸(Fulvic Acid,FA)、4500mg/L硝酸钙(Ca(NO3)2及其复配后浸种,并以200mmol/L氯化钠(NaCl)对青稞种子进行胁迫处理,研究FA、Ca2+及其复配浸种对盐胁迫下青稞种子萌发的影响.结果表明,盐胁迫下青稞种子的萌发和幼苗的生长受到了明显抑制;用黄腐酸、硝酸钙及其复配浸种能显著提高NaCl胁迫下青稞种子萌发率、萌发势、萌发指数、活力指数和幼苗的根数、株高、根长、地上鲜质量、地上干质量、根系鲜质量、根系干质量,并以黄腐酸与硝酸钙复配效果最佳.表明黄腐酸、硝酸钙及其复配浸种能够提高青稞种子抗盐胁迫的能力.Effects of fulvic acid and Ca2＋ and their complex treatment on seed germination were investigated under 200mmol/L NaCl stress after treating the seeds of hulless barley in solution of 100 mg/L fulvic acid （FA）,and 4500 mg/L calcium nitrate [Ca（NO3 ）2 ].The results show that salt stress could remarkably inhibit the germination and growth of hulless barley seedlings;and fulvic acid,Ca（NO3 ）2 and their complex solution treatment could observably increase the germination rate,germination vigor,germination index,vitality index and the number of seedlings,plant height,root length,fresh mass of shoot,dry mass of shoot,fresh mass of root,dry mass of root of hulless barley,of which fulvic acid and calcium nitrate complex treatment has the best effect,indicating that the fulvic acid,Ca（NO3 ）2 and their complex solution could enhance the ability of hulless barley seed to resist salt stress.

关 键 词：青稞 黄腐酸 硝酸钙 盐胁迫 复配 

分 类 号：Q945.78[生物学—植物学]