|Table of Contents|

Effects of Uniconazole and Diethyl Aminoethyl Hexanoate on Photosynthetic Characteristics and Carbon Metabolism of Soybean Leaves(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2020年02期
Page:
243-251
Research Field:
Publishing date:

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Title:
Effects of Uniconazole and Diethyl Aminoethyl Hexanoate on Photosynthetic Characteristics and Carbon Metabolism of Soybean Leaves
Author(s):
HUANG Wen-ting1;  FENG Nai-jie1; 2;  ZHENG Dian-feng1; 2;  JIN Dan1;  MU Bao-min1;  DING Kai-xin1
(1.College of Agricultural, Heilongjiang Bayi Agricultural University, Daqing 163319, China; 2.College of Agricultural, Guangdong Ocean University, Zhanjiang 524088, China)
Keywords:
Uniconazole; Diethyl aminoethyl hexanoate; Soybean; Photosynthetic characteristics; Carbon metabolism
PACS:
-
DOI:
10.11861/j.issn.1000-9841.2020.02.0243
Abstract:
In order to explore the effects of chemical control technology on photosynthetic characteristics and carbon metabolism of soybean in flowering, podding and seed-filling stages, Kenfeng 41 was used as material to spray uniconazole（S3307）and diethyl aminoethyl hexanoate（DTA-6）on the leaves of soybean in early flowering stage, and clean water was sprayed as control. Photosynthetic parameters, carbon metabolites and their related enzymes, dry matter and yield components were measured at different growth stages. The results showed that: Uniconazole and diethyl aminoethyl hexanoate could significantly increase the water use efficiency, net photosynthetic rate, SPAD, the content of sucrose and starch in different growth stages and stomatal conductance and transpiration rate in flowering and podding stages. Diethyl aminoethyl hexanoate significantly decreased invertase activity and increased sucrose synthase and sucrose phosphate synthase activity at different growth stages, especially at podding stage. Uniconazole could increase sucrose synthase and sucrose phosphate synthase activity at different growth stages and reduce invertase activity at flowering stage. Compared with the control, uniconazole and diethyl aminoethyl hexanoate increased the distribution rate of leaves and stems, decreased the distribution rate of petioles at flowering stage, diethyl aminoethyl hexanoate significantly increased the dry matter accumulation per plant in different growth stages and decreased the distribution rate of leaves at podding stage, uniconazole significantly increased the dry matter accumulation per plant and the distribution rate of pods at podding stage.Uniconazole and diethyl aminoethyl hexanoate could regulate pod number per plant, seed number per plant and 100-seed weight in varying degrees to increase yield. The yields of diethyl aminoethyl hexanoate and uniconazole increased by 8.78% and 7.16%, respectively. In conclusion, uniconazole and diethyl aminoethyl hexanoate can effectively improve the photosynthetic capacity of soybean at different growth stages, promote the synthesis of carbon metabolites and related enzymes, and it’s help for improving yield. Diethyl aminoethyl hexanoate has the best effect and the highest yield.

References:

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Last Update: 2020-06-10