|Table of Contents|

Effects of S3307 and CCC Mixed Trace Element Dressing on the Photosynthetic Physiology and Yield of Soybean(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2020年04期
Page:
587-594
Research Field:
Publishing date:

Info

Title:
Effects of S3307 and CCC Mixed Trace Element Dressing on the Photosynthetic Physiology and Yield of Soybean
Author(s):
ZHANG Chun-yu;  JIN Xi-jun;  ZHANG Ming-cong ;  WANG Meng-xue;  CAO Liang;  REN Chun-yuan;  HU Guo-hua;  ZHANG Yu-xian
(College of Agronomy, Heilongjiang Bayi Agricultural University, Daqing 163319, China)
Keywords:
Soybean;  S3307;  CCC;  Trace elements;  Photosynthesis;  Yield
PACS:
-
DOI:
10.11861/j.issn.1000-9841.2020.04.0587
Abstract:
In order to clarify the effect of the combination of the two growth regulators S3307 and CCC on growth of soybeans, promoting the application of compound growth regulator in production, we took cell comparison method to study the effects of the above-mentioned two hormones and trace elements on the photosynthesis, fluorescence characteristics, dry matter accumulation and yield of soybean.We set four treatments indued seed dressing with S3307 and CCC with trace elements S3307 with trace elements(S), CCC with trace elements(C), S3307+CCC with trace elements(S+C), and no seed dressing(CK). The results showed that compared with CK, the Pn, Tr, Gs and Ci of soybean leaves at seedling, pod-setting and bulging stages of S, C and S+C treatments increased. The average increment of the indexes were respectively 17.3%-42.8%, 25.2%-52.8%, 4.6%-5.4% and 19.9%-30.8%. The ФPSⅡ, ETR, Fv/m and Fv/o values of S, C, S+C treatments at seedlings, pods and bulges stage all increased. The average increment were respectively 26.7%-71.1%, 25.8%-60.5%, 7.4%-15.7% and 51.1%-89.1%. In terms of soybean morphology, compared with CK, the plant height of S, C and S+C treatments at the seedling stage respectively reduced 3.5%, 3.1% and 3.4%. The average leaf area per plant increased 2.4%-23.4%. S+C, S, C treatments could promote the growth and development of the organs below the ground. In terms of yield, S+C and S treatments could significantly increase the number of seeds per plant and the number of pods per plant, with growth rates of 12.3%-22.1% and 19.3%-20.7%. Compared with CK, the yield of S, C and S+C treatments increased 20.2%, 5.9% and 22.7% respectively. In summary, the combination of S3307 and CCC could increase the gas exchange parameters of photosynthesis, improve the fluorescence index, promote the growth of seedlings, increase the number of pods and seeds per plant, and ultimately increase soybean yield. The effect of S+C treatment in this study was remarkable, which was suitable for the actual production application in Heilongjiang reclamation area. At the same time, this study verified that the combined application of compound plant growth regulators and trace elements had a positive effect on the growth of soybean with better effect comparing with plant growth regulators alone.

References:

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Last Update: 2020-09-02