Evaluating winter malting barley grain yield with fractional green canopy cover
نویسندگان
چکیده
Because of growth in the craft brewing industry, farmers eastern United States are planting winter malting barley (Hordeum vulgare L.) to meet demands for locally sourced grain. However, given that is a relatively new crop this region, basic agronomic information relating stand assessment needed. This particularly relevant as climatic variability from extreme temperature fluctuations during and spring can reduce stand, creating need estimate grain yield potential. The objective research was evaluate relationship between stem counts, fractional green canopy cover (FGCC), normalized difference vegetation index (NDVI) yield. Trials were established at five site-years Ohio, where seeding rate treatments 0.75, 1.0, 1.5, 2.0 2.5 million seeds acre−1 used simulate range poor excellent plant stands. All methods conducted Feekes 5 stage. Stem counts correlated with FGCC NDVI measurements (r = .76 .74, respectively). (R2 .67) .65) accounted greatest Specifically, ≤5% corresponded 27 39 bu acre−1, whereas 10% 60 89 acre−1. Fractional should be considered tool, it reduces labor compared counting techniques.
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ژورنال
عنوان ژورنال: Crop, Forage and Turfgrass Management
سال: 2021
ISSN: ['2374-3832']
DOI: https://doi.org/10.1002/cft2.20079