Adaptation and plasticity of yield in hybrid and inbred sorghum

Local adaptation and genotype by environment (G×E) interactions affect the expression of phenotypes in crop species. An investigation on the interplay between adaptation and G×E on sorghum heterosis phenotypes is lacking. To address this question, a set of 112 diverse grain sorghum hybrids and their 22 inbred parents of local and exotic origins, representing the primary female and male heterotic groups, were tested in five contrasting sorghum growing environments across two years in Queensland, Australia. Plant height, days to flowering, seed yield, grain weight, and grain number were measured and used in the estimation of heterosis. Mid parent heterosis for yield ranged from -25 to 217% and was highly influenced by grain number. In contrast to observations in maize the magnitude of heterosis for yield was not associated with site mean. Striking differences were observed in heterosis in hybrids from locally developed inbred parents compared with hybrids that were developed from exotic i..., These datasets were collected across 5 experimental sites in the Queensland soerghum growing belt in Australia (2001 - 2003). Raw data is provided.
Measured Variables

TRAIT
NAME

HGT
Height from base to panicle tip

FLAG HGT
height from base to flag leaf

DFL
Days to 50% flowering

LDG
Lodging score - stalk lodging

Plot yield Kg/Ha
Yield in Kilograms per Hectare

1000 seed weight
Weight of 1000 grains.

, , # Adaptation and Plasticity of Yield in Hybrid and Inbred Sorghum

Data on Sorghum hybrids and their inbred parents across 5 environments. Six traits have been measured in ~ 100 hybrids and inbred parents.

## Description of the data and file structure

Data is provided in raw format and may be used in studies on heterosis in sorghum. The data is provided in Excel format with multiple sheets, each location data in its own sheet. The name of the location is on the respective sheet. Another sheet named NOTES contains a description of the variables measured.

All the data is provided in raw format.

The experimental design is a row column design with two replication in all the locations. Check genotypes are designated as check/ commercial check (1,2 or 3)

Site is the location where the trial/experiment was planted.

Range: Is a design feature of the experiment synonymous to blocks

Rows : Are the units within ranges and represent the plots in the experiment. Each plot had four rows and ...