Cucumber core collection fruit morphological traits raw data (2019-2022)

Commercial value of cucumber is primarily driven by fruit quality.  However, breeding goals frequently focus on production constraints caused by biotic and abiotic stresses.  As sources of resistances are often present in unadapted germplasm, we sought to provide morphological and genetic information characterizing the diversity of fruit quality traits present in the CucCAP cucumber core collection. These 388 accessions representing >96% of the genetic diversity for cucumber present in the U.S. National Plant Germplasm System harbor important sources of resistances and extensive morphological diversity.  Data were collected for skin color, length/diameter ratio (L/D), tapering, curvature, and spine density for young fruits [5-7 days post-pollination (dpp)], and length, diameter, L/D, skin color, netting, seed cavity size, flesh thickness, hollowness, and flesh color for mature fruits (30-40 dpp).  The multi-year photographic data have been made available via the C..., , , # Cucumber core collection fruit morphological traits raw data (2019-2022)

[https://doi.org/10.5061/dryad.tb2rbp0b9](https://doi.org/10.5061/dryad.tb2rbp0b9)

## The Data

The data was collected from the USDA cucumber core collection from 2019-2022. Each file contain the measurements of the morphological trait as shown in the file name. Six representative fruits from each accession were selected for photograph when harvesting. The description and illustration of the measurement method can be found in the Material and Method in the publication. 

### Fruit shape traits

### *Fruit length, diameter, carpel number, seed cavity, flesh thickness, hollowness, spine density, netting, tapering*

These traits had one measurement per fruit. The letters are the abbreviation for the trait, the numbers followed indicate the fruit order. The two digits number after the decimal indicate the year of data collected. For example:

*mature_length_raw.csv*

* len.1.19: fruit length measurement of the 1st ...,