Choukri Majda, Abouabdillah Aziz, Bouabid Rachid, Abd-Elkader Omar H, Pacioglu Octavian, Boufahja Fehmi, Bourioug Mohamed
Department of Agronomy, National School of Agriculture, km. 10, Route Haj Kaddour, B.P. S/40, 50001 Meknès, Morocco.
Physics & Astronomy Department, Science College, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia.
Saudi J Biol Sci. 2022 Dec;29(12):103456. doi: 10.1016/j.sjbs.2022.103456. Epub 2022 Sep 23.
The micronutrient application in agriculture takes place through soil application, foliar spraying or added as seed treatments. The latter method, the nutri-priming, is an appealing option due to the easiness in handling it, environment-friendly, cost effectiveness and efficient against multiple environmental stressors. To assess the feasibility of Zn-priming technique on seeds germination, two experiments were conducted and assessed the efficiency on the growth rate, yield and biofortification on the forage maize ( L.). The first laboratory experiment assessed the effect of Zn-priming for three-time exposures (i.e., 8, 16 and 24 h) on germination parameters. The second experiment was done in a greenhouse, by using the 10 seeds obtained from 24 h priming. Five seed pretreatments were studied (0, 0.1, 0.5, 1 and 11 2 % of zinc sulfate heptahydrate (ZnSO·7HO)) compared to the recommended dose (5 ppm of Zn at 5-9 leaf stage) provided by soil application. The obtained results revealed that all seed priming, including hydro-priming, improve seed germination performance. Zn-priming increased the grain yield and helped to enrich the seeds in this element, especially seedlings treated with 0.5 % Zn sulphate for 24 h leading to an increase in yield by 47 % and in Zn content by 15 %. The comparison of the results from both techniques showed that Zn-priming could be was very effective than the traditional direct application in soil.
农业中的微量营养素施用通过土壤施用、叶面喷施或作为种子处理添加来进行。后一种方法，即营养引发，因其操作简便、环保、成本效益高且对多种环境胁迫因素有效而颇具吸引力。为评估锌引发技术对种子萌发的可行性，进行了两项实验，并评估了其对饲用玉米（品种名未给出）生长速率、产量和生物强化的效果。第一个实验室实验评估了锌引发三次暴露（即8、16和24小时）对萌发参数的影响。第二个实验在温室中进行，使用从24小时引发处理中获得的10粒种子。与土壤施用推荐剂量（5 - 9叶期5 ppm锌）相比，研究了五种种子预处理（0、0.1、0.5、1和1.2%的七水硫酸锌（ZnSO₄·7H₂O））。获得的结果表明，所有种子引发处理，包括水引发，都能改善种子萌发性能。锌引发提高了谷物产量，并有助于使种子富含该元素，特别是用0.5%硫酸锌处理24小时的幼苗，产量增加了47%，锌含量增加了15%。两种技术结果的比较表明，锌引发可能比传统的土壤直接施用非常有效。
