Data for: Evaluation of pollination traits important for hybrid wheat development in Great Plains germplasm

Hybrid wheat (Triticum aestivum L.) offers potential yield advantages over conventional inbred cultivars. For hybrid wheat to be a commercial success, the cost to produce the hybrid seed needs to be minimized. Although wheat is naturally self-pollinated, hybrid wheat seed production can be improved by increasing the amount and availability of pollen for cross-pollination. This research examined 19 pollination traits using the Hard Winter Wheat Association Mapping Panel for three years. Anther extrusion, pollen 50 date (date at which a genotype has 50% of spikes pollinating), plant height, and pollination duration (last spike pollen 50 date minus first spike pollen 50 date) were identified as the most important traits for hybrid seed production. Anther extrusion, plant height, and pollen 50 date varied widely among genotypes, while pollination duration had significant genotypic differences in one year of testing. These traits also had significant genotype x year interactions, but better ..., The Hard Winter Wheat Association Mapping Panel (HWWAMP) consists of 299 historic, experimental (pre-2010), and released genotypes from both public and private institutions is a valuable genetic resource for studying marker trait associations in Great Plains genetic backgrounds (Guttieri et al., 2017).  The HWWAMP was grown at the University of Nebraska Lincoln Agronomy Farm (40º51’23.3”N, 96º36’23.8”W) in 2016, 2018, and 2019.  Genotypes were planted in 1m long plots with 30 cm row spacing: as single rows in 2016 (harvest year with the planting being in the previous fall) and in two-row plots in 2018 and 2019 using a Wintersteiger Rowseed Planter (Salt Lake City, U.S.A.).  Planting population was 2.5 million seeds per hectare, based on the recommended seeding rates for the area.  Each trial was intensively managed so as to remove the effect of disease and was treated with [2-[[[1-(4-chloropheny)-1H-pyrazol-3-yl]oxy]methyl]phenyl]methoxy-, methyl ester), metconazole, 5-[(4-chlorophenyl)..., ASREML, SAS, JMP