不同价态无机砷对水稻种子萌发的影响  

Effects of Different Inorganic Arsenic Species on the Germination of Rice Seed

作　　者：杨桂娣[1] 郭徐魁[1] 陆锦池[1] 陈荣山[1] 刘长辉[1] 林志华[1] 王海斌[1] 何海斌[1] 

机构地区：[1]福建农林大学生命科学学院,福建福州350002

出　　处：《农产品加工（下）》2009年第4期34-35,共2页Farm Products Processing

基　　金：福建省教育厅基金资助(JA08071);福建农林大学大学生创新性实验项目资助(2008)

摘　　要：以水稻品种"汕优63"为材料,探讨不同价态无机砷对水稻种子萌发的影响。结果表明,不同价态无机砷显著抑制水稻种子的萌发率、胚芽鞘长、根长、鲜质量、干质量和含水率等,随着砷浓度的升高抑制作用加剧,且三价砷对水稻种子的毒性大于五价砷。Take Shanyou 63 rice seed as example, the effects of different inorganic arsenic species on the germination of rice seed were determined. The results indicated that the germination rate, coleoptilet height, root length, fresh weight, dry weight, and water content of the rice seedlings were decreased as the arsenic concentration increased and As （Ⅲ） exerts greater toxic effects than As （Ⅴ） after rice seeds were treated with the same concentration of As （Ⅲ） and As （Ⅴ） .

关 键 词：无机砷 水稻种子 发芽率 

分 类 号：S481.1[农业科学—农药学]