Biomass yield, yield components and growing season phenotypic measurements of Miscanthus

For sustainable biomass production of Miscanthus × giganteus (hereafter miscanthus), understanding the impact of stand age and nitrogen (N) fertilization on biomass yield is crucial. This study investigated the effects of varying N fertilization rates (0, 56, 112, and 168 kg N ha-1) on yield components (tiller height, density, and weight) and their correlations with end-of-season biomass yield in miscanthus. We also explored end-of-season biomass yield prediction using in-season traits (canopy height, leaf area index (LAI), and leaf chlorophyll content (LCC)). The study was conducted at two sites in Illinois: a previously unfertilized 10-year-old miscanthus research stand at Urbana and a 16-year-old commercial stand at Pesotum with a history of annual 56N application. Results from 2018-2021 in Urbana and 2020-2021 in Pesotum showed increased biomass yields with N fertilization, varying by rate, year, and location. Biomass yield in Pesotum peaked at 56N, while in Urbana, it increased sig..., , , # Data from: Biomass yield, yield components and growing season phenotypic measurements of Miscanthus

[https://doi.org/10.5061/dryad.z612jm6kk](https://doi.org/10.5061/dryad.z612jm6kk)

Dataset contains end-of-season Dry biomass yield of Miscanthus × giganteus from two sites (Urbana and Pesotum) in Central Illinois. The Urbana and Pesotum yields are collected over 4 years (2018-2021) and 2 years (2020-2021) respectively. Dataset also contains yield component traits (tiller height, tiller density and tiller weight) obtained at harvest. Phenotypic traits (canopy height, Leaf area index (LAI) and Leaf Chlorophyll content (LCC)) measured during the growing season are also included.

## Description of the data and file structure

Yield&components

Site: Location in central IL

Year: Growing Season

Rate: Nitrogen rate (kg ha-1)

DM (Mg ha-1): End-of-season Dry biomass yield

Tiller density (tiller m-2) : Number of tillers per m2

Tiller weight (g m-2): Dry weight of an individual tiller...