|Table of Contents|

Impact of Density and Uniconazole on Stem Lodging Resistance and Yield of Inter-planting Soybean Cultivar Nanxiadou 25(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2017年01期
Page:
33-40
Research Field:
Publishing date:

Info

Title:
Impact of Density and Uniconazole on Stem Lodging Resistance and Yield of Inter-planting Soybean Cultivar Nanxiadou 25
Author(s):
LIANG Jian-qiu;  YU Xiao-bo;  WU Hai-ying;  FENG Jun;  LIU Guo-lin;  ZHANG Ming-rong
Nanchong Academy of Agricultural Sciences/Nanchogn Station of China Soybean Industrial Technology System, Nanchong 637000, China
Keywords:
Inter-planting;  Population density;  Chemical treatments;  Stem lodging resistance;  Yield
PACS:
-
DOI:
10.11861/j.issn.1000-9841.2017.01.0033
Abstract:
Nanxiadou 25 is a suitable inter-planting soybean cultivar with high protein content. In order to clarify the ideal population density and cultivated measures of Nanxiadou 25, 4 population density,including 100 000, 120 000, 180 000 and 240 000 plants·ha-1 were set. The plots were sprayed with 75 mg·kg-1 uniconazole during the branching stage, and investigated some mainly agronomic traits. Results showed that the plant height, stem height of gravity center, length of the first internode, ratio between length and diameter, were significantly increased with the increasing of population density, but diameter of the first stem internode decreased significantly. The chemical treatment with spraying uniconazole could inhibit the increase of stem height, length of the first stem internode, because the increase of population density and increase diameter of the first stem internode could improve the lodging resistance. In addition, the yield components per plant all decreased with the increase of population density under chemical treatment or none. The plot yield showed a trend of first increased and then decreased with the increase of population density under chemical treatment, with the highest yield in the density of 180 000 plants·ha-1. These results showed that, chemical treatment could significantly increase crop yield. Therefore, suitable density (180 000 plants·ha-1) and rational chemical treatments could enhance the lodging resistance and yield of Nanxiadou 25.

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Last Update: 2017-03-14