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http://dx.doi.org/10.7740/kjcs.2021.66.1.080

Changes in Growth and Productivity Characteristics by Sowing Date on Spring Sowing Rapeseed (Brassica napus L.) in Paddy Field of Southern Region of South Korea  

Kwon, Da-Eun (Bioenergy Crop Research Institute, National Institute of Crop Science)
Kim, Kwang-Soo (Bioenergy Crop Research Institute, National Institute of Crop Science)
Hwang, Eom-Ji (Bioenergy Crop Research Institute, National Institute of Crop Science)
Park, Jin-Cheon (Bioenergy Crop Research Institute, National Institute of Crop Science)
Lee, Ji-Eun (Bioenergy Crop Research Institute, National Institute of Crop Science)
Lee, Yeong-Hoon (Bioenergy Crop Research Institute, National Institute of Crop Science)
Publication Information
KOREAN JOURNAL OF CROP SCIENCE / v.66, no.1, 2021 , pp. 80-86 More about this Journal
Abstract
The purpose of this study was to determine the optimal sowing date for the spring sowing cultivation of rapeseed (Brassica napus L.). To determine suitable rapeseed sowing dates for spring sowing cultivation, changes in growth, flowering characteristics, and seed production were investigated in Muan, South Korea between 2019 and 2020. 'Jungmo7001' is the suitable variety for spring sowing because of its early flowering characteristics, high seed yield, and the fact that it occupies the highest cultivation area in South Korea. When the yield of 'Jungmo7001' was investigated in 2019 and 2020, the highest yields recorded were 243 kg/10a in February 28, 2019, and 294 kg/10a in February 18, 2020. As a result, the optimal rapeseed seeding period is considered to be mid-to-late February in the southern region. There was no statistically significant difference in seed crude oil content. The content of oleic acid (C18:1) decreased, but that of linoleic acid (C18:2) and of linolenic acid (C18:3) increased significantly depending on the sowing date.
Keywords
fatty acid compositions; oil contents; paddy field; rapeseed; sowing date; spring sowing; varieties; yield;
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