|Table of Contents|

Effects of Different Concentrations of Potassium Indole Butyrate on Soybean Growth Development and Physiological Metabolism at Seedlings Stage(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2021年02期
Page:
217-223
Research Field:
Publishing date:

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Title:
Effects of Different Concentrations of Potassium Indole Butyrate on Soybean Growth Development and Physiological Metabolism at Seedlings Stage
Author(s):
LIU Mei-ling1FENG Nai-jie123ZHENG Dian-feng123LIANG Xi-long1WANG Shi-ya1ZUO Guan-qiang1JIN Dan1MU Bao-min1
(1.College of Agriculture, Heilongjiang Bayi Agriculture University, Daqing 163319, China; 2.College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang 524088, China; 3.Shenzhen Research Institute,Guangdong Ocean University, Shenzhen 518108, China)
Keywords:
Soybean Leaf Potassium indole butyrate Growth and development Physiological metabolism
PACS:
-
DOI:
10.11861/j.issn.1000-9841.2021.02.0217
Abstract:
In order to explore the effect of potassium indole butyrate (IBA-K) on the growth development and physiological metabolism at soybean seedling stage, this study took soybean varieties Kenfeng 16 and Hefeng 50 as the experimental materials, and studied the regulatory effects of IBK-K under 0 (CK), 20, 40, 80, 160 and 320 mg?kg-1 , respectively. The results showed that, compared with the control, different doses of IBA-K coating treatment improved the morphogenesis, photosynthesis, protective enzyme activity and osmotic adjustment substance content of soybean at the seedling stage to varying degrees. Except for the plant height, all reached the maximum when the IBA-K concentration was 80 mg?kg-1, and was significantly higher than the control. The plant height of Kenfeng 16 reached the maximum when the IBA-K concentration was 20 and 160 mg?kg-1, which both increased by 10.78% compared with the control. The SOD activity of Kenfeng 16 increased by 4.81% when the IBA-K concentration was 80 mg?kg-1 compared with the control. The plant height and SOD activity of Hefeng 50 reached the maximum at 80 mg?kg-1, which was a significant increase of 27.78% and 8.83% than its control. Compared with the control, the VPD of Kenfeng 16 and Hefeng 50 under the IBA-K treatment were significantly reduced by 17.24% and 23.74%, and the MDA content was significantly reduced by 38.11% and 46.44%, respectively. The above analysis showed that when the concentration of IBA-K was 80 mg?kg-1 for seed coating treatment, it could effectively promote the growth of soybean seedlings, increase the photosynthetic capacity of soybeans, enhance the antioxidant enzyme activity of soybean leaves, reduce the MDA content, and increase the content of osmotic adjustment substances.

References:

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Last Update: 2021-07-20