本文選題：生物質(zhì)炭　切入點：土霉素脅迫　出處：《生態(tài)毒理學(xué)報》2017年03期 　論文類型：期刊論文

【摘要】：采用土培模擬污染實驗,將甘蔗渣炭、菠蘿渣炭和木薯渣炭分別以0%、0.1%、0.5%和1.0%的炭土比添加到磚紅壤中,研究土霉素脅迫下小白菜種子萌發(fā)效應(yīng)。結(jié)果表明:(1)生物質(zhì)炭促進種子萌發(fā);土霉素在0~300 mg·kg~(-1)脅迫下種子發(fā)芽率未受明顯影響,300~500 mg·kg~(-1)時受輕微抑制。(2)土霉素為0~100 mg·kg~(-1)時對種子根及芽伸長呈促進作用,促進率最高達33.05%。100~500 mg·kg~(-1)呈抑制效應(yīng),最大抑制率63.98%;種子對土霉素的敏感順序依次為:根伸長芽伸長發(fā)芽率。(3)在土霉素脅迫下炭土比與種子根伸長呈顯著正相關(guān)。3種生物質(zhì)炭對小白菜種子根及芽伸長的促進效果呈:木薯渣炭菠蘿渣炭甘蔗渣炭。(4)生物質(zhì)炭和低濃度土霉素共同促進小白菜萌發(fā),對高濃度土霉素毒性有緩解作用。
[Abstract]:Using soil culture to simulate pollution, bagasse carbon, pineapple residue carbon and cassava residue charcoal were added to the latosol with 0.5% and 1.0% carbon / soil ratio of 0% and 0.1% respectively. The germination effect of Chinese cabbage seeds under oxytetracycline stress was studied. The germination rate of seeds was not significantly affected under 0 ~ 300mg 路kg 路kg ~ (-1) stress. The seed germination rate was slightly inhibited at a concentration of 500 mg 路kg ~ (-1).) when oxytetracycline was 0 ~ (100 mg 路kg ~ (-1)), it promoted the elongation of seed root and bud, and the highest rate was 33.05. 100 ~ (500 mg 路kg ~ (-1) 路kg ~ (-1)). The order of seed sensitivity to oxytetracycline was: root elongation bud elongation germination rate.) under oxytetracycline stress, the ratio of carbon to soil was positively correlated with seed root elongation. 3 kinds of biomass carbon had a significant positive correlation with seed root and bud elongation of pakchoi under oxytetracycline stress. The results showed that cassava residue, pineapple charcoal, bagasse carbon, and low concentration oxytetracycline could promote the germination of pakchoi. It can alleviate the toxicity of high concentration oxytetracycline.
【作者單位】： 海南大學(xué)環(huán)境與植物保護學(xué)院;浙江大學(xué)生命科學(xué)學(xué)院;
【基金】：國家自然科學(xué)基金項目(21467008);國家自然科學(xué)基金項目(21367011) 海南省自然科學(xué)基金項目(413123) 中西部高校提升綜合實力工作資金項目(ZXBJH-XK004,ZXBJH-XK005,MWECSP-RT08) 海南省研究生創(chuàng)新科研課題項目(Hys2016-22)
【分類號】：X171.5;X503.231

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