Environmental controls on cultivated soybean phenotypic traits across China
文献类型：SCI/SSCI论文
| 作者 | Li Q. Q. ; Hu Y. M. ; Chen F. X. ; Wang J. F. ; Liu Z. H. ; Zhao Z. Z. |
| 发表日期 | 2014 |
| 关键词 | Accession Crude oil content Crude protein content Environmental variables Seed weight Phenotypic traits Regression models Soybean germplasm incorporating spatial autocorrelation seed temperature protein climate growth yield photoperiod patterns |
| 英文摘要 | impacts of environmental variables on basic phenotypic traits of cultivated soybean varieties can be significant and vary with individual traits. However, such studies are extremely rare at the continental scale because of limited observations and potential collinearity and spatial autocorrelation among abiotic factors that can make the attribution difficult. This study was designed to explore and quantify environmental variables that could closely relate to soybean phenotypic traits across China. The data of cultivated soybean phenotypic traits (i.e., 100-seed weight, crude oil content, protein content, plant height) and environmental variables were compiled from 18,686 samples across 29 provinces of China. Different regression models were used to remove collinearity and spatial autocorrelation among selected variables. As the first attempt at a continental scale, our study shows that climatic and geographic variables contributed much more to trait variations than soils did, of which the minimum temperature was most critical, followed by longitude, and soil properties explained more variances on crude protein content than on others. Abiotic variables explained 29, 20, 17 and 38% of the observed variations (P<0.05) of crude protein content, crude oil content, 100-seed weight and plant height, respectively. This result implies that, besides the effects of farming practices such as fertilization, irrigation, planting density, etc., biotic factors (e.g., genes) likely play a more important role in determining the phenotypic traits and their spatial variability. It is possible to improve soybean quality and yield by selecting suitable environments even though it is hard to develop a kind of soybean varieties with all ideal germplasm traits simultaneously. (C) 2014 Elsevier B.V. All rights reserved. |
| 出处 | Agriculture Ecosystems & Environment |
| 卷 | 192 |
| 页 | 12-18 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 0167-8809 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/29763]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Li Q. Q.,Hu Y. M.,Chen F. X.,et al. Environmental controls on cultivated soybean phenotypic traits across China. 2014. |
入库方式： OAI收割
来源：地理科学与资源研究所
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