首页 | 本学科首页   官方微博 | 高级检索  
     检索      


Use of foliar symptoms and plant height to predict yield loss in potatoes due to metribuzin injury
Authors:Stephen L Love  Bahman Shafii  Lloyd C Haderlie  Charlotte Eberlein
Institution:1. Aberdeen Research and Extension Center, 83210, Aberdeen, ID
2. College of Agriculture, University of Idaho, 83843, Moscow, ID
3. AgraServe, Inc., 83211, American Falls, ID
Abstract:A model to predict yield loss due to metribuzin injury was developed using data from four experiments involving postemergence applications of metribuzin to numerous cultivars and breeding selections. Two explanatory variables, plant height proportion (PHR), defined as injured/uninjured, and percent foliar injury (FI), were used to predict yield loss. Three multiple regression models, including linear, quadratic, and a linear-log were considered and evaluated. Acceptance of the best model was based on comparison of fit as indicated by Residual Mean Squares, Adjusted R2, and Predicted Sums of Squares. The best fit was for a linear-log model utilizing percent foliar injury and a natural log transformation of the plant height proportion (injured/uninjured). The predictive model was statistically validated by utilizing residual analysis on an independent data set. The model can be used to simply and quickly predict yield losses due to metribuzin injury
Keywords:
本文献已被 SpringerLink 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号