HUANG Chengliang.Effects of 0.003% Propionylbrassinolide on the Growth and Yield of Rice in Cold Regions[J].HEILONGJIANG AGRICULTURAL SCIENCES,2024,(02):36-40.[doi:10.11942/j.issn1002-2767.2024.02.0036]
0.003%丙酰芸苔素内酯对寒地水稻生长及产量的影响
- Title:
- Effects of 0.003% Propionylbrassinolide on the Growth and Yield of Rice in Cold Regions
- 文章编号:
- 6
- Keywords:
- 0.003% propionylbrassinolide; rice in cold zone; yield
- 文献标志码:
- A
- 摘要:
- 为促进新型植物生长调节剂丙酰芸苔素内酯在寒地水稻高产优质栽培中的实际应用效果，以水稻品种富合48为材料，研究不同浓度0.003%丙酰芸苔素内酯对水稻生长及产量构成的影响。结果表明，在水稻孕穗期、齐穗期喷施0.003%丙酰芸苔素内酯对水稻株高、干重和剑叶SPAD值均有明显促进作用，穗数、穗粒数均高于清水对照。179.9~359.8 mL·hm-2 0.003%丙酰芸苔素内酯处理可极显著提高水稻产量且对水稻安全，分别较对照水稻增产1.9%~13.8%。其中施药量为179.9 mL·hm-2时产量最高，增产率为13.8%，可使水稻见穗期至齐穗期天数缩短1 d，增强水稻抗倒伏能力，且对水稻安全。
- Abstract:
- In order to promote the practical application effect of the new plant growth regulator propionylbrassinolide in high-yield and high-quality cultivation of rice in cold regions， the effects of different concentrations of 0.003% propionylbrassinolide on the growth and yield structure of rice were studied by the Fuhe 48 was taken test material. The results showed that spraying 0.003% propionylbrassinolide at booting stage and full spike stage had significant effects on plant height, dry weight and SPAD value of leaf, and panicle number and grain number per panicles were higher than that of water control. Treatment with 179.9-359.8 mL·ha-1 0.003% propionylbrassinolide significantly increased rice yield and safety, and increased rice yield by 1.9%-13.8%, respectively. When the dosage was 179.9 mL·ha-1, the yield was the highest and the increase rate was 13.8%, which could shorten the days from ear stage to full ear stage for one day and enhance the lodging resistance of rice, which was safe for rice.
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备注/Memo
收稿日期：2023-09-16