• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>The Indian Journal of Agricultural Sciences >Effect of lead and chromium on germination and seedling growth of tomato (Solanum lycopersicum) and eggplant (Solanum melongena)
【24h】

Effect of lead and chromium on germination and seedling growth of tomato (Solanum lycopersicum) and eggplant (Solanum melongena)

机译：铅和铬对番茄（茄子）和茄子（茄子）的萌发和幼苗生长的影响

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A study was conducted to determine the effect of different concentrations of lead and chromium on seed germination and seedling growth of tomato (Solanum lycopersicum L.) and eggplant (Solanum melongena L). Seeds were grown under laboratory conditions at five concentration levels each of Pb (0, 2.5, 5.0, 7.5 and 10 ppm) and Cr (0, 0.1, 0.5, 2.5 and 7.5 ppm). Both lead and chromium treatments showed toxic effects on various growth indices of tomato and eggplant. The results of the present study have indicated that as Pb concentration increased from 0 to 5.0 ppm, the germination percentage, plumule and radicle length, fresh and dry weight decreased in tomato from 94 to 19%, 6.78 to 0.88 cm, 5.77 to 1.16 cm, 0.49 to 0.10 mg and 0.05 to 0.01 mg, respectively, while in eggplant, the decrease in the corresponding parameters was from 93 to 20%, 5.76 to 1.23 cm, 5.20 to 1.89 cm, 0.46 to 0.11 mg and 0.05 to 0.01 mg, respectively. In case of Pb, the tomato and eggplant seedlings did not germinate at 7.5 to 10 ppm concentrations. A similar trend was observed for germination and seedling growth parameters in case of Cr at 7.5 ppm concentration. On the basis of the results obtained, it was concluded that tomato was more sensitive than eggplant. As far as the relative response to the two heavy metals is concerned, it was clear that lead is less toxic than chromium. The uptake of lead by plant is also very low. An attempt was made to quantify the response of the seedlings of the two crops to varying Pb and Cr concentrations. The models used were linear, quadratic, and polynomial of degree 3. The responses could be described very satisfactorily by the polynomial of degree three with R-2 > 99% for all the parameters.
机译：进行了一项研究以确定不同浓度的铅和铬对番茄（Solanum lycopersicum L.）和茄子（Solanum melongena L）的种子发芽和幼苗生长的影响。种子在实验室条件下以Pb（0、2.5、5.0、7.5和10 ppm）和Cr（0、0.1、0.5、2.5和7.5 ppm）的五个浓度水平生长。铅和铬处理均显示出对番茄和茄子各种生长指数的毒性作用。本研究结果表明，随着Pb浓度从0增加到5.0 ppm，番茄的发芽率，羽状和胚根长度，鲜重和干重分别从94％降至19％，6.78降至0.88 cm，5.77降至1.16 cm分别为0.49至0.10 mg和0.05至0.01 mg，而在茄子中，相应参数的减少为93至20％，5.76至1.23 cm，5.20至1.89 cm，0.46至0.11 mg和0.05至0.01 mg，分别。如果是铅，番茄和茄子的幼苗在7.5至10 ppm的浓度下不会发芽。在Cr浓度为7.5 ppm的情况下，发芽和幼苗生长参数也观察到类似的趋势。根据获得的结果，可以得出结论，番茄比茄子更敏感。就对两种重金属的相对反应而言，很明显铅的毒性低于铬。植物对铅的吸收也很低。试图量化两种作物的幼苗对不同的Pb和Cr浓度的响应。所使用的模型是3级的线性，二次方和多项式。对于所有参数，通过3级多项式（R-2> 99％）可以非常令人满意地描述响应。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号