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首页> 外文期刊>Pakistan journal of botany >Amelioration of adverse effects of simulated acid rain (SAR) on growth and yield attributes of sunflower (Helianthus annuus L.) by growth tonics
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Amelioration of adverse effects of simulated acid rain (SAR) on growth and yield attributes of sunflower (Helianthus annuus L.) by growth tonics

机译：通过生长补剂改善模拟酸雨（SAR）对向日葵（Helianthus annuus L.）生长和产量属性的不利影响

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摘要

A pot experiment was conducted to mimic the adverse effects of air pollution in the form of simulated acid rain (SAR) on morphological and yield attributes of two sunflower (Helianthus annuus L.) hybrids viz. FH-385 and FH-37 and their amelioration with the application of two growth tonics (Fashion and Micron-T i.e., macro & micronutrients). The experiment was performed in the net house of Old Botanical Garden, University of Agriculture, Faisalabad, in a Completely Randomized design with four replicates. Simulated acid rain (containing HNO3at pH 3) alone and in combination with foliar spray of Fashion or Micron-T were applied 20 days after seed germination. Acid rain treatment remarkably reduced growth and yield in both hybrids while the application of Fashion excelled Micron-T in ameliorating the toxic effects of acid rain. A comparison between sunflower hybrids indicated FH-37 to be more tolerant to SAR as compared to FH-385. Based on these findings it may be recommended that growth tonics may ameliorate the toxic effects of SAR. There is need for further investigation to improve agricultural produce using such growth tonics.
机译：进行了盆栽试验，以模拟模拟酸雨（SAR）形式的空气污染对两种向日葵（Helianthus annuus L.）杂种的形态和产量属性的不利影响。 FH-385和FH-37及其通过使用两种生长补品（Fashion和Micron-T，即大量和微量营养素）得到改善。实验是在费萨拉巴德农业大学旧植物园的网房中进行的，完全随机设计，一式四份。种子发芽后20天，单独或与Fashion或Micron-T的叶面喷雾剂一起使用模拟酸雨（pH为3的HNO3）。酸雨处理显着降低了两个杂种的生长和产量，而Fashion的应用使Micron-T在减轻酸雨的毒性方面表现出色。向日葵杂交种之间的比较表明，与FH-385相比，FH-37对SAR的耐受性更高。基于这些发现，可能建议生长补品可以改善SAR的毒性作用。需要进一步研究以使用这种生长补品来改善农产品。

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