本文選題：脫落酸(ABA) + 繁縷　； 參考：《土壤通報(bào)》2016年04期

【摘要】：盆栽試驗(yàn)研究了鎘脅迫條件下噴施脫落酸(ABA)對(duì)富集植物繁縷(Stellaria media)生長(zhǎng)及鎘積累的影響。結(jié)果表明,噴施ABA提高了繁縷生物量及光合色素含量。隨ABA噴施濃度的增加,繁縷的生物量及光合色素含量呈增加的趨勢(shì),但繁縷的鎘含量、鎘積累量、抗氧化酶(SOD、POD和CAT)活性、可溶性蛋白含量及可溶性糖含量呈先增后降的趨勢(shì),最大值出現(xiàn)在ABA濃度為15 mg L-1,此時(shí),繁縷根系、地上部分及整株鎘積累量均達(dá)到最大值,分別為94.54、235.93和330.47μg plant-1,較各自對(duì)照分別增加了19.07%(P0.05)、49.45%(P0.05)和39.28%(P0.05)。噴施ABA能夠促進(jìn)繁縷的生長(zhǎng),提高繁縷對(duì)鎘的富集能力,以15 mg L-1的ABA濃度為最佳。
[Abstract]:Pot experiment was conducted to study the effects of abscisic acid (Aba) sprayed under cadmium stress on the growth and cadmium accumulation of Stellaria media. The results showed that spraying ABA increased the biomass and photosynthetic pigment content. The biomass and photosynthetic pigment content of Zoysia increased with the increase of spraying concentration of ABA, but the cadmium content, cadmium accumulation, antioxidant enzyme activity, soluble protein content and soluble sugar content increased first and then decreased. The maximum amount of CD in root, shoot and whole plant of Zoysia japonica was 94.54235.93 and 330.47 渭 g plant-1 respectively, which was increased by 19.07% P 0.05 (P 0.05) and 39.28% (P 0.05), respectively, compared with the control, when the concentration of ABA was 15 mg 路L ~ (-1), and the accumulation of cadmium in root, shoot and whole plant reached the maximum value, which was 94.54235.93 and 330.47 渭 g plant-1, respectively. Spraying ABA could promote the growth of Zoysia japonica and enhance its ability to enrich cadmium. The best concentration of ABA was 15 mg L-1.
【作者單位】： 四川農(nóng)業(yè)大學(xué)園藝學(xué)院;綿陽(yáng)市農(nóng)業(yè)科學(xué)研究院;四川農(nóng)業(yè)大學(xué)果蔬研究所;
【基金】：國(guó)家農(nóng)業(yè)科技成果轉(zhuǎn)化資金項(xiàng)目(2011GB2F000006)資助
【分類號(hào)】：X173
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本文編號(hào)：1919742