植物生长调节剂是天然或人工合成的化学物质, 它们不仅对作物的生长发育具有重要调节作用, 还能提高植物的抗逆性。为研究不同植物生长调节剂对小麦(Triticum aestivum)在盐碱胁迫下生长发育的影响、探索提高盐碱地作物产量的方法, 本研究在2023-2024年间, 于黄河三角洲农业高新技术产业示范区的盐碱地开展小麦喷施试验。试验分为四组, 包括蒸馏水对照组、0.5%褐藻寡糖组、植物黄金组以及0.5%褐藻寡糖与植物黄金的混合喷施组, 分别于2024年3月28日、4月12日、4月28日和5月12日对小麦进行喷施。研究结果表明, 喷施褐藻寡糖及其与植物黄金的混合物后, 小麦的穗粒数和百粒重显著增加。特别是混合喷施组, 其盐碱地小麦的产量达到每亩234.9 kg, 较单独喷施褐藻寡糖组和植物黄金组分别提高了14.4%和46.9%。因此, 褐藻寡糖及其与植物黄金的联合应用能够显著提高小麦在盐碱地的适应性, 显示出其在盐碱地小麦生产中的重要应用潜力。

Plant growth regulators are natural or artificially synthesized chemical substances that play an important regulatory role in the growth and development of crops, as well as enhance the resistance of plants to stress. To study the effects of different plant growth regulators on the growth and development of wheat under salt-alkali stress, and to explore methods to increase crop yield in saline-alkaline land, we conducted spraying experiments on wheat in saline-alkaline soil in the Yellow River Delta Agricultural High-tech Industry Demonstration Zone from 2023 to 2024. The experiment was divided into four groups: a distilled water control group, a 0.5% Alginate oligosaccharide group, a Plant Gold group, and a mixed group of 0.5% Alginate oligosaccharide and Plant Gold. The wheat was sprayed on March 28, April 12, April 28, and May 12, 2024. The results showed that after spraying Alginate oligosaccharide and its mixture with Plant Gold, the number of grains per ear and the weight of 100 grains of wheat significantly increased. In particular, the group that received the mixture of Alginate oligosaccharide and Plant Gold achieved a theoretical yield of 234.9 kg per mu for wheat in saline-alkaline soil, which was an increase of 14.4% and 46.9% compared to the groups that received only Alginate oligosaccharide and Plant Gold, respectively. Therefore, the combined application of Alginate oligosaccharide and Plant Gold can significantly enhance the adaptability of wheat in saline-alkaline land, demonstrating its important application potential in wheat production in such environments.