ODJAR Martre et al 2017

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The data set contains a portion of the International Heat Stress Genotype Experiment (IHSGE) data used in the AgMIP-Wheat project to analyze the uncertainty of 30 wheat crop models and quantify the impact of heat on global wheat yield productivity. It includes two spring wheat cultivars grown during two consecutive winter cropping cycles at hot, irrigated, and low latitude sites in Mexico (Ciudad Obregon and Tlaltizapan), Egypt (Aswan), India (Dharwar), the Sudan (Wad Medani), and Bangladesh (Dinajpur). Experiments in Mexico included normal (November-December) and late (January-March) sowing dates. Data include local daily weather data, soil characteristics and initial soil conditions, planting dates, crop measurements (emergence, anthesis and maturity dates, anthesis and final total above ground biomass, final grain yields and yields components), plant density, plant height and cultivar information. We took the crop calendar data (planting, emergence, anthesis and maturity dates), anthesis and final total above ground biomass, final grain yields, plant density and plant height.

Provider's website

Paper

Data, file: ISGHE_AgMIP_measurments_ave_sd.txt

Documentation

Martre, et al.., 2017. The International Heat Stress Genotype Experiment for modeling wheat response to heat: field experiments and AgMIP-Wheat multi-model simulations. Open Data Journal for Agricultural Research, vol. 3, pg. 23-28. [1]


Background

Background paper:

Asseng, S., Ewert, F., Martre, P., Rötter, R.P., Lobell, D.B., Cammarano, D., Kimball, B.A., Ottman, M.J., Wall, G.W., White, J.W. and Reynolds, M.P., 2015. Rising temperatures reduce global wheat production. Nature Climate Change, 5(2), p.143 [2]

Background on data:

  • ISGHE_AgMIP_ measurement_key.txt
  • readme_experimental_data.txt

Pre-processing

CROP_CODE

Attribute: n.a.
Remark: via paper

CUL_NAME

Attribute: Variety
Remark: -

CUL_NOTES

Attribute: n.a.
Remark: via paper

CROP_DEV_BBCH

Attribute: ADAT
Remark: The following translation table was used to convert the verbal phenological stages into BBCH:

  • PDATE, cereals is mapped to BBCH 00 (Dry seed (caryopsis))
  • PLDAE, cereals is mapped to BBCH 09 (Emergence: coleoptile penetrates soil surface (cracking stage))
  • ADAT, cereals is mapped to BBCH 65 (Full flowering: 50% of anthers mature)
  • MDAT, cereals is mapped to BBCH 89 (Fully ripe: grain hard, difficult to divide with thumbnail)

PLANT_DENSITY_CNT_M2

Attribute: NPM2 (Mean of plant number per square meter at maturity)
Remark: -

SO_DWT_KGHA

Attribute: GWAM (Mean of grain dry mass at maturity)
Remark: -

TOPS_DWT_KGHA

Attribute: CWAM / CWAA (Mean of total above ground biomass at anthesis/maturity)
Remark: -

CANOPY_HEIGHT_M

Attribute: EHTX (Mean of plant height at anthesis)
Remark: -

Management

Attribute: n.a.
Remark: interpreted; based on paper and data