|Table of Contents|

Effects of New Plant Growth Regulators AP2 and CGR3 on Photosynthetic Characteristics and Yield of Soybean(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2018年04期
Page:
563-569
Research Field:
Publishing date:

Info

Title:
Effects of New Plant Growth Regulators AP2 and CGR3 on Photosynthetic Characteristics and Yield of Soybean
Author(s):
LI Bing1 CAI Guang-rong12 ZHANG Hong-peng1 ZHANG Pan-pan1 ZHENG Dian-feng12FENG Nai-jie1
(1.Agronomy College of Heilongjiang Bayi Agricultural University, Daqing 163319, China; 2.National Coarse Cereals Engineering Research Center, Heilongjiang Bayi Agricultural University, Daqing 163319, China)
Keywords:
Plant growth regulators AP2 CGR3 Photosynthetic characteristics Soybean
PACS:
-
DOI:
10.11861/j.issn.1000-9841.2018.04.0563
Abstract:
In order to clarify the effects of two new plant growth regulators on soybean growth, and promote the practical application of new regulators.Soybean Hefeng 50 was used as experimental material to study the effects of different concentration gradient of plant growth regulator AP2 and CGR3 soaking on soybean photosynthetic physiological characteristics and yield by field experiments. The effects of two plant growth regulators on photosynthetic characteristics and yield of soybean were analyzed by measuring leaf chlorophyll content, net photosynthetic rate, transpiration rate, stomatal conductance and intercellular CO2 concentration in the flowering period (R2) and podding period (R4).The results showed that two kinds of plant growth regulators could increase soybean yield in different degrees at appropriate concentrations.AP2(100 mg·L-1) and CGR3(50 mg·L-1) seed soaking concentration was better for the yield of Hefeng 50,the yield was 18.90% and 11.3% higher than that of the control, respectively. The application of AP2 and CGR3 increased the chlorophyll (SPAD) value, net photosynthetic rate of soybean leaves. Therefore, it is preliminarily inferred that AP2 and CGR3 increased soybean yield and may be closely related to regulation effect of regulator on leaf photosynthetic physiology.

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Last Update: 2018-07-31