农业环境科学学报2012，Vol.31Issue(5)：874-879,6.
环境材料对铅、镉、砷胁迫下玉米种子萌发的影响
Effect of Environmental Materials on Germination of Maize Seed Under Stress of Lead, Cadmium and Arsenic
摘要
Abstract
Environmental materials were often applied in relieving stress on plants seed germination caused by heavy metal pollution. In this research, maize seed germination tests were conducted in nutrient solutions with lead of 100 mg ·L-1, cadmium of 30 mg · L-1 or arsenic of 10 mg·L-1 respectively, and the effects of the environmental materials: Polymer water-retaining material, coal-based nutrients , adsorption mineral material and their compounds on maize seed germination under heavy nielal stress were studied. The results showed that all the three environmental materials could relieve the heavy metal stress on maize seed germination and the effect on root elongation was more significant than that on sprout. Polymer water-retaining materials and their combination could relieve heavy metal stress obviously. The combination of polymer water-retaining material, coal-based nutrients and adsorption mineral material ranked first in relieving heavy metal stress. The inhibition rate of maize seed was 5% and the sprout length increased 65% under cadmium tress compared with the treatment of no environmental material(CK2). The inhibition rate of maize seed was zero and the sprout length decreased 64% under lead tress compared with CK2. Comparing with CK2 the germination percentage and the sprout length increased 26% andl2%, respectively.关键词
环境材料/重金属/砷/玉米/种子萌发Key words
environmental material/ heavy metal/ arsenic( As)/ maize/ germination of seed分类
农业科技引用本文复制引用
杜乔娣,黄占斌,沈忱,章智明..环境材料对铅、镉、砷胁迫下玉米种子萌发的影响[J].农业环境科学学报,2012,31(5):874-879,6.基金项目
国家十二五"863"课题(2011AA100503) （2011AA100503）
国家自然科学基金(40971164):黄土高原土壤侵蚀与旱地农业国家重点实验室基金(10501-258) （40971164）
