This is digital research data corresponding to a published manuscript, Breeding heat tolerant orchardgrass germplasm for summer persistence in high temperature stress environments of the southeastern United States, in Crop Science, Volume 61, p. 1915 - 1925.
Orchardgrass (Dactylis glomerata L.) could serve as a cool-season perennial in southeastern production systems, but often does not behave as a true perennial under high temperature stress conditions of the region. This work sought to develop heat-tolerant orchardgrass germplasm through recurrent phenotypic selection (RPS) that would both reduce secondary seed dormancy caused by high soil temperatures and improve stand persistence over summer months. Selection was conducted in a growth chamber 40/30 °C (12/12 h, light/darkness), with germinated seedlings subjected to an additional 2–3 weeks of 40/30 °C conditions. The base germplasm (Cycle 0) and selected individuals (Cycles 1–3) were transplanted into the field, then harvested for seed. Forty-degree germination tests compared mean cumulative germination, velocity of germination within 8 days (VOG8), and realized heritability. Stand persistence was assessed 1 year after transplanting.
Methods are described in the manuscript https://doi.org/10.1002/csc2.20492. Descriptions for each dataset corresponding to each figure and table in the text of the manuscript are found in the ReadMe.docx file or on each individual tab in the Excel file.
- Link to dataset at Datadryad.orghtml
This is digital research data corresponding to a published manuscript,...
|Release Date|| |
|Spatial / Geographical Coverage Area|| |
POINT (-88.791882358673 33.423389126665)
POINT (-88.796818107512 33.424988584991)
POINT (-88.79703030063 33.436946818614)
POINT (-88.764152229123 33.46515269015)
Ag Data Commons
|Spatial / Geographical Coverage Location|| |
Cycles 0 to 3 cycles of selection spaced across Mississippi State University's North and South farm locations, Mississippi State, MS 39762
|Temporal Coverage|| |
February 1, 2018 to September 15, 2018
|Contact Name|| |
|Public Access Level|| |
|Program Code|| |
005:040 - Department of Agriculture - National Research
|Bureau Code|| |
005:18 - Agricultural Research Service