盐胁迫对无芒雀麦种子发芽势和发芽率的影响  

Effect of Salt Stress on Seed Germination of Bromus inermis Leyss

作　　者：李继光[1,2] 于爽[1] 肖杰[1] 金志民[1] 金建丽[1] 杨春文[1] 张隽晟[1] 赵月琪[1] 

机构地区：[1]牡丹江师范学院生命科学与技术学院,黑龙江牡丹江157012 [2]哈尔滨工业大学市政环境工程学院,黑龙江哈尔滨150090

出　　处：《北方园艺》2011年第2期25-27,共3页Northern Horticulture

基　　金：黑龙江省教育厅科学技术研究面上资助项目(11551517);牡丹江师范学院青年学术骨干资助项目(G200901);牡丹江市科技局科技攻关资助项目(G200920065);黑龙江省教育厅科学技术研究面上项目(11551515);黑龙江省教育厅资助项目(11553118)

摘　　要：在实验室条件下,模拟土壤盐积状况,在0.2%、0.4%、0.6%、0.8%、1.0%、1.2%、1.4%、1.6%、1.8%NaCl溶液浓度下,进行抗盐性试验,处理草坪植物无芒雀麦,测定发芽数、根数、叶数、根长、叶长等。结果表明:在盐胁迫下,随盐浓度的增加,无芒雀麦的发芽率、发芽指数及活力指数逐渐下降,平均发芽时间随NaCl浓度的增加而变长。胚芽和胚根长度随盐浓度的增加受抑制程度增加,无芒雀麦的根数随盐浓度的增加呈现递减的现象。The experiment was to compare the germination ability of the saline-tolerant Bromus inerrnis Leyss under saline conditions, under 0. 2%, 0. 4%, 0. 6%, 0. 8%, 1.0%, 1.2%, 1.4%, 1.6%, 1.8% NaCl solution concentration, made the comparison by the water, and three group of redundant, carried on the anti-salinity experiment, the processing lawn grass secale cereale, the determination germination number, the radical, the root were long and so on. The results indicated that under the salty coercion, along with salinity increase, after wheat＇s germination percentage, germinates index and the vitality index declining gradually, the average germinating time increased along with the NaCl density lengthens. The phenomenon which the plumule and the radicle length was suppressed along with salinity increasing. Bromus inermis Leyss＇s radical decreased with the salinity increasing.

关 键 词：无芒雀麦 盐胁迫 发芽率 

分 类 号：X53[环境科学与工程—环境工程]