Noreen Azra, Jahan Summera, Kamran Atif, Hashem Abeer, Avila-Quezada Graciela Dolores, Abd-Allah Elsayed Fathi
Institute of Botany, University of the Punjab, Lahore, Pakistan.
Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box. 2455, Riyadh, 11451, Saudi Arabia.
Sci Rep. 2025 Nov 5;15(1):38764. doi: 10.1038/s41598-025-22618-7.
Water stress is the most crucial abiotic stress, adversely affecting soil productivity and global food production. The soil productivity can be enhanced by utilizing organic soil conditioners such as organically modified sugarcane bagasse biochar (ASBB) which can potentially enhance crop yield. On the other hand, Pakistan's domestic edible oil production is notably insufficient. Edible oil holds the position as the top food import commodity in Pakistan. So, there is a dire need to enhance the domestic oil production in Pakistan. The present work intends to explore the influence of ASBB on yield attributes of Camelina sativa growing under three different levels of irrigation (100%, 70%, and 50% moisture of field capacity). A field experiment was conducted in the Botanical Garden, at University of the Punjab, Lahore, Pakistan, in Randomized Complete Block Design (RCBD) with three replicates during 2023-2024. Water stress adversely affected the morphological, physiological, biochemical and yield related attributes of Camelina sativa in soil without ASBB amendment under 50% moisture of field capacity. However, ASBB improved the plant growth parameters in both 5 tons per hectare (T) and 10T amendments. However, the highest improvement was recorded in 10T ASBB in leaf relative water content, (20%, 19.6%, and 30.25%) and total chlorophyll content (131%, 78%, and 61%), when grown under 100%,70%, and 50% irrigation, respectively, in contrast to without ASBB amendment. Leaf proline content and antioxidant enzymes activities (SOD, POD, CAT) enhanced under 70% and 50% irrigation while declined under 100% irrigation in soil without ASBB amendment. However, 10T ASBB improved branches per plant (61%, 56.5%, and 57%), pods per branch (67.5%, 66%, and 61%), 100 seed weight (20.9%, 19%, and 24%), and seed production per plant (5.6-folds, 4.2-folds, and 5.5-folds) under 100%, 70% and 50% irrigation. So, present work concluded that modified ASBB amendment in soil has been incredibly beneficial for improving crop productivity by enhancing water-use efficiency, leaf water status, and pigment stability in Camelina sativa in deficit irrigation systems.
水分胁迫是最关键的非生物胁迫，对土壤生产力和全球粮食生产产生不利影响。利用有机土壤改良剂，如有机改性甘蔗渣生物炭（ASBB），可以提高土壤生产力，进而可能提高作物产量。另一方面，巴基斯坦国内食用油产量明显不足。食用油是巴基斯坦进口量最大的食品。因此，迫切需要提高巴基斯坦国内的食用油产量。本研究旨在探讨ASBB对在三种不同灌溉水平（田间持水量的100%、70%和50%）下生长的亚麻荠产量性状的影响。2023 - 2024年期间，在巴基斯坦拉合尔旁遮普大学植物园采用随机完全区组设计（RCBD）进行了田间试验，重复三次。在田间持水量50%的条件下，水分胁迫对未添加ASBB改良剂的土壤中亚麻荠的形态、生理、生化和产量相关性状产生了不利影响。然而，每公顷5吨（T）和10T的ASBB改良剂均改善了植株生长参数。与未添加ASBB改良剂相比，在100%、70%和50%灌溉条件下生长的亚麻荠，10T ASBB处理的叶片相对含水量（分别提高20%、19.6%和30.25%）和总叶绿素含量（分别提高131%、78%和61%）的改善最为显著。在未添加ASBB改良剂的土壤中，70%和50%灌溉条件下叶片脯氨酸含量和抗氧化酶活性（超氧化物歧化酶、过氧化物酶、过氧化氢酶）增强，而100%灌溉条件下则下降。然而，10T ASBB在100%、70%和50%灌溉条件下分别使单株分枝数（提高61%、56.5%和57%）、每分枝荚数（提高67.5%、66%和61%）、百粒重（提高20.9%、19%和24%）以及单株种子产量（提高5.6倍、4.2倍和5.5倍）。因此，本研究得出结论，在亏缺灌溉系统中，土壤中添加改性ASBB对提高亚麻荠的水分利用效率、叶片水分状况和色素稳定性，从而提高作物生产力具有显著益处。
