title: Analyzing the Effects of Climate Factors on Soybean Protein, Oil Contents, and Composition by Extensive and High-Density Sampling in China.
abstract: From 2010 to 2013, 763 soybean samples were collected from an extensive area of China. The correlations between seed compositions and climate data were analyzed. The contents of crude protein and water-soluble protein, total amount of protein plus oil, and most of the amino acids were positively correlated with an accumulated temperature ≥15 °C (AT15) and the mean daily temperature (MDT) but were negatively correlated with hours of sunshine (HS) and diurnal temperature range (DTR). The correlations of crude oil and most fatty acids with climate factors were opposite to those of crude protein. Crude oil content had a quadratic regression relationship with MDT, and a positive correlation between oil content and MDT was found when the daily temperature was <19.7 °C. A path analysis indicated that DTR was the main factor that directly affected soybean protein and oil contents. The study illustrated the effects of climate factors on soybean protein and oil contents and proposed agronomic practices for improving soybean quality in different regions of China. The results provide a foundation for the regionalization of high-quality soybean production in China and similar regions in the world.
authors.affiliation: Key Laboratory of Mollisol Agroecology, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences , Harbin 150081, China.|MOA Key Laboratory of Soybean Biology, Institute of Crop Science, Chinese Academy of Agricultural Sciences , Beijing 100081, China.|University of Chinese Academy of Sciences , Beijing 100049, China.
authors.forename: Wenwen
authors.initials: W
authors.lastname: Song
authors.affiliation: MOA Key Laboratory of Soybean Biology, Institute of Crop Science, Chinese Academy of Agricultural Sciences , Beijing 100081, China.|Institute of Dryland Agriculture, Gansu Academy of Agricultural Sciences , Lanzhou 730070, China.
authors.forename: Ruping
authors.initials: R
authors.lastname: Yang
authors.affiliation: MOA Key Laboratory of Soybean Biology, Institute of Crop Science, Chinese Academy of Agricultural Sciences , Beijing 100081, China.
authors.forename: Tingting
authors.initials: T
authors.lastname: Wu
authors.affiliation: MOA Key Laboratory of Soybean Biology, Institute of Crop Science, Chinese Academy of Agricultural Sciences , Beijing 100081, China.
authors.forename: Cunxiang
authors.initials: C
authors.lastname: Wu
authors.affiliation: MOA Key Laboratory of Soybean Biology, Institute of Crop Science, Chinese Academy of Agricultural Sciences , Beijing 100081, China.
authors.forename: Shi
authors.initials: S
authors.lastname: Sun
authors.affiliation: MOA Key Laboratory of Soybean Biology, Institute of Crop Science, Chinese Academy of Agricultural Sciences , Beijing 100081, China.
authors.forename: Shouwei
authors.initials: S
authors.lastname: Zhang
authors.affiliation: MOA Key Laboratory of Soybean Biology, Institute of Crop Science, Chinese Academy of Agricultural Sciences , Beijing 100081, China.
authors.forename: Bingjun
authors.initials: B
authors.lastname: Jiang
authors.affiliation: MOA Key Laboratory of Soybean Biology, Institute of Crop Science, Chinese Academy of Agricultural Sciences , Beijing 100081, China.
authors.forename: Shiyan
authors.initials: S
authors.lastname: Tian
authors.affiliation: Key Laboratory of Mollisol Agroecology, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences , Harbin 150081, China.
authors.forename: Xiaobing
authors.initials: X
authors.lastname: Liu
authors.affiliation: MOA Key Laboratory of Soybean Biology, Institute of Crop Science, Chinese Academy of Agricultural Sciences , Beijing 100081, China.
authors.forename: Tianfu
authors.initials: T
authors.lastname: Han
mesh_terms: D000596:Amino Acids / Q000032:analysis; D002681:China; D002980:Climate; D008027:Light; D011891:Rain; D013024:Soybean Oil / Q000032:analysis*; D030262:Soybean Proteins / Q000032:analysis*; D013025:Glycine max / Q000737:chemistry* / Q000254:growth & development / Q000528:radiation effects; D013696:Temperature
chemical_list: D000596:Amino Acids; D030262:Soybean Proteins; D013024:Soybean Oil
keywords: amino acid; climate factor; fatty acid; oil; protein; quality; soybean