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盐胁迫对无芒雀麦种子发芽势和发芽率的影响

作  者:
李继光;于爽;肖杰;金志民;金建丽;杨春文;张隽晟;赵月琪
单  位:
牡丹江师范学院;牡丹江师范学院生命科学与技术学院
关键词:
无芒雀麦;盐胁迫;发芽率
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。
译  名:
Effect of Salt Stress on Seed Germination of Bromus inermis Leyss
作  者:
LI Ji-guang~(1,2),YU Shuang~1,XIAO Jie~1,JIN Zhi-min~1,JIN Jian-li~1,YANG Chun-wen~1,ZHANG Juan-sheng~1,ZHAO Yue-qi~1 (1.College of Life Sciences and Technology,Mudanjing Teachers College,Mudanjiang,Heilongjiang 157012;2.School of Municipal and Environmental Engineering,Harbin Institute of Technology,Harbin,Heilongjiang 150090)
关键词:
Bromus inermis Leyss;;salt stress;;germination percentage
摘  要:
The experiment was to compare the germination ability of the saline-tolerant Bromus inermis 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.

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