Predicting the Protein Content of Grain in Winter Wheat with Meteorological and Genotypic Factors(Agronomy)

スポンサーリンク

概要

• 論文の詳細を見る

• Meteorological conditions including temperature, sunshine and precipitation during grain growth are the primary factors determining the variation of the protein content of grain (PC) in wheat. On the basis of field experiments, a simplified regression model was developed for predicting the PC in winter wheat. From stepwise regression analysis, it was found that the PC of high-protein cultivars was correlated with the difference between daily maximum and minimum temperatures (⊿ T) when ⊿ T variation under the environment was significant, but with the interaction of mean temperature (Tmean) × total sunshine hours from anthesis to maturity (TSUN) under the environment with ⊿ T variation less than 5%. In medium-protein cultivars, the PC was correlated with TSUN, and in low-protein cultivars, with the combination of Tmean, total rainfall from anthesis to maturity (TR) and TSUN. The climatic factors influencing PC were further quantified incorporating five genetic parameters. The ⊿ T and TSUN were linearly correlated with PC, and Tmean was quadratically correlated with PC. The precipitation was linearly correlated with PC if it was less than 50mm, otherwise quadratically. The average root mean square error (RMSE) values of the estimated PC relative to the observed value were less than 7 percent, indicating a good fit between the estimated and observed PC. Thus, it is concluded that the present model can predict the PC of different winter wheat cultivars under various climate environments.

• 日本作物学会の論文

著者

• Pan Jie

  Hi-tech Key Lab Of Information Agriculture Of Jiangsu Province Nanjing Agricultural University

• Cao Weixing

  Jiangsu Key Laboratory For Information Agriculture Nanjing Agricultural University

• Zhu Yan

  Jiangsu Key Laboratory For Information Agriculture Nanjing Agricultural University

• Zhu Yan

  Hi-Tech Key Lab of Information Agriculture of Jiangsu Province, Nanjing Agricultural University

• Cao Weixing

  Hi-Tech Key Lab of Information Agriculture of Jiangsu Province, Nanjing Agricultural University

• Dai Tingbo

  Hi-Tech Key Lab of Information Agriculture of Jiangsu Province, Nanjing Agricultural University

• Jiang Dong

  Hi-Tech Key Lab of Information Agriculture of Jiangsu Province, Nanjing Agricultural University

• Dai Tingbo

  Key Laboratory Of Crop Growth Regulation Of Ministry Of Agriculture Hi-tech Key Lab Of Information A

• Jiang Dong

  Key Laboratory Of Crop Growth Regulation Of Ministry Of Agriculture Hi-tech Key Lab Of Information A

• Cao Weixing

  Jiangsu Key Laboratory for Information Agriculture, Nanjing Agricultural University

関連論文

• A Knowledge-Based Model for Nitrogen Management in Rice and Wheat(Agronomy)
• Predicting the Protein Content of Grain in Winter Wheat with Meteorological and Genotypic Factors(Agronomy)
• A Quantitative Knowledge-based Model for Designing Suitable Growth Dynamics in Rice(Crop Physiology and Ecology)
• Analysis of Common Canopy Reflectance Spectra for Indicating Leaf Nitrogen Concentrations in Wheat and Rice(Crop Physiology and Ecology)
• Spatial Distribution of Leaf Area Index and Leaf N Content in Relation to Grain Yield and Nitrogen Uptake in Rice(Agronomy)
• A Knowledge-Based Model for Nitrogen Management in Rice and Wheat

スポンサーリンク