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第58届Intel ISEF中国参赛项目:硝基苯污染对水稻种子萌发及幼苗生长发育影响的研究

2007-05-25中国科协青少年科技中心本文被阅读过4372次[推荐][打印][保存][大字体][中字体][小字体]

哈尔滨工业大学附属中学   高三  刘峥  杨之光

学科:植物学

    硝基苯是重大污染源,一旦泄漏对生态环境及农业生产以及城乡居民的健康带来严重威胁。研究旨在探明硝基苯对水稻育秧期的影响,为受污染威胁地区水稻生产提供参考。
    本试验选取当地主栽的4个水稻品种作为试验材料,以国家饮用水安全标准(0.017mg/L)为标准,设计了7个处理。试验分为发芽试验和秧苗试验两个阶段。调查处理种子的发芽势,发芽率;秧苗的株高,根数,叶片数等性状。全部试验在人工气候箱和玻璃加温室中进行。实验结果表明:水稻育秧期水中硝基笨含量在0.051mg/L(即国家安全饮用水3倍)以下时是安全的,对秧苗生长无影响。

 

 

 

Effect of Nitrobenzene Pollution on Rice Seed Germinaton and Seeding Growth

Plant Sciences

Liu Zheng, Yangzhiguang 19, The High School Attact to Harbin institute Technology

The nitric  benzene is the graveness pollution source, once leak to produce to the ecosystem environment and agricultures and the city country the residents bring the serious threat healthily.Study the aim at explore the clear nitric   benzene to the influence that the paddy rice teaches the period of  , produce to provide the reference for the paddy rice that is subjected to the pollution threat region.


 Experiment to select by examinations 4 paddy rices the species conduct and actions that the local lord plant to experiment the material originally, take the national drinking water  safety standard(0.017 mgs/ L) as the standard, design 7 processings.Experiment to is divided into the germination to experiment to experiment two stages with rice seedling.Investigate the germination of handle the seed power, germination rate;The stub of the rice seedling is high, number, leaf's number etc. form.All experiment to carry on in the artificial weather box and glass heat room.Experiment the result enunciation:The paddy rice teaches the  period water in the stupid content of the nitric  at the 0.051 mgs/ L( namely the national security drinking water 300%) the following is safe, have no influence to the rice seedling growth.

 

(作者:刘峥 杨之光)
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