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INTRODUCTION:Plant growth regulators are natural or artificially synthesized chemical substances that play an important regulatory role in the growth and development of crops, and can enhance the resistance of plants to stress.
RATIONALE 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-alkali land, we conducted spraying experiments on wheat in saline-alkali 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 aligosaccharide group, a Plant Gold group, and a mixed group of 0.5% alginate aligosaccharide and Plant Gold. The wheat was sprayed on March 28, April 12, April 28, and May 12, 2024.
RESULTS: The results showed that after spraying alginate oligosaccharide and its mixture with Plant Gold, the number of grains per ear and the 100-grain weight of wheat significantly increased. In particular, the group that received the mixture of alginate oligosaccharide and Plant Gold achieved a theoretical yield of 1 174.5 kg·hm-2 for wheat in saline-alkali soil, which was an increase of 14.4% and 46.9% compared to the groups treated with only alginate oligosaccharide and Plant Gold, respectively.
CONCLUSION: Therefore, the combined application of alginate oligosaccharide and Plant Gold can significantly enhance the adaptability of wheat in saline-alkali land, demonstrating its important application potential in wheat production in such environments.
After selecting 1 m × 1 m sample plots within the experimental block and conducting spray tests with different plant growth regulators, the theoretical yields of different groups showed different changes. Among them, the yield of the mixed spray group was significantly higher than that of the control group.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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