| CYTOLOGIC | PLOIDY | Ploidy level determined either through flow cytometry or chromosome counting. | TETRAPLOID - Tetraploid. | | PLOIDY | | Not Available |
| CYTOLOGIC | VESSEL DIAMETER | Diameter in micrometers of vessel lumen in current or previous year's growth ring in saplings. | 32.2 | | VESSEL DIAMETER - BEIER AND BLANCHETTE 2020 | | Not Available |
| CYTOLOGIC | VESSEL DENSITY | Number of vessels per square millimeter in the current year's growth ring in the main stem of saplings. | 212.4 | | VESSEL DENSITY | | Not Available |
| CYTOLOGIC | VESSELS PER GROUP | Average number of vessel elements per group in the current or previous year's growth ring in saplings. | 2.72 | | VESSELS PER GROUP - BEIER AND BLANCHETTE 2020 | | Not Available |
| DISEASE | DED BARRIER ZONE THICKNESS | Average thickness (in micrometers) of barrier zone 90 days post inoculation of trees inoculated with Ophiostoma novo-ulmi. Observations were made on sections of the most recent annual ring from the side opposite of inoculation at 30–31 cm above the inoculation site. Images of the sections were cropped to be 0.5 mm wide tangentially with the length including the annual ring radially. Average of observations from 2015 and 2016. | 109.45 | | DED BARRIER ZONE | | Not Available |
| DISEASE | DED CROWN SYMPTOMS 1 YPI | Average percent of the tree's crown displaying symptoms (e.g. defoliation, dieback, wilting or death) in a field setting one year post inoculation with Ophiostoma novo-ulmi and/or O. ulmi spore suspensions. | 0 | | DED CROWN SYMPTOMS - TOWNSEND ET AL 2005 | | Not Available |
| DISEASE | DED CROWN SYMPTOMS 1 YPI | Average percent of the tree's crown displaying symptoms (e.g. defoliation, dieback, wilting or death) in a field setting one year post inoculation with Ophiostoma novo-ulmi and/or O. ulmi spore suspensions. | 13 | | DED CROWN SYMPTOMS - TOWNSEND & DOUGLASS 2001 | | Not Available |
| DISEASE | DED CROWN SYMPTOMS 2 YPI | Average percent of the tree's crown displaying symptoms (e.g. defoliation, dieback, wilting or death) in a field setting two years post inoculation with Ophiostoma novo-ulmi and/or O. ulmi spore suspensions. | 0 | | DED CROWN SYMPTOMS - TOWNSEND ET AL 2005 | | Not Available |
| DISEASE | DED CROWN SYMPTOMS 2 YPI | Average percent of the tree's crown displaying symptoms (e.g. defoliation, dieback, wilting or death) in a field setting two years post inoculation with Ophiostoma novo-ulmi and/or O. ulmi spore suspensions. | 9 | | DED CROWN SYMPTOMS - TOWNSEND & DOUGLASS 2001 | | Not Available |
| DISEASE | DED CROWN SYMPTOMS 28 DPI | Average percent of the tree's crown displaying symptoms (e.g. defoliation, dieback, wilting or death) in a field setting 28 days post inoculation with Ophiostoma novo-ulmi and/or O. ulmi spore suspensions. | 0 | | DED CROWN SYMPTOMS - TOWNSEND ET AL 2005 | | Not Available |
| DISEASE | DED CROWN SYMPTOMS 7 YPI | Average percent of the tree's crown displaying symptoms (e.g. defoliation, dieback, wilting or death) in a field setting seven years post inoculation with Ophiostoma novo-ulmi and/or O. ulmi spore suspensions. | 4 | | DED CROWN SYMPTOMS - TOWNSEND & DOUGLASS 2001 | | Not Available |
| DISEASE | DED CROWN SYMPTOMS 90 DPI | Average percent of the tree's crown displaying symptoms (e.g. defoliation, dieback, wilting or death) in a field setting 90 days post inoculation with Ophiostoma novo-ulmi and/or O. ulmi spore suspensions. | 6 | | DED CROWN SYMPTOMS - BEIER & BLANCHETTE 2018 | | Not Available |
| DISEASE | DED PERCENT SURVIVAL 7 YPI | Percent survival (out of 56 trees) in a field setting, seven years post inoculation with Ophiostoma novo-ulmi and O. ulmi spore suspensions. | 96 | | DED CROWN SYMPTOMS - TOWNSEND & DOUGLASS 2001 | | Not Available |
| DISEASE | DED % W/ BARRIER ZONE 20 DPI | Percent of trees (out of seven or eight trees) that had a barrier zone present 20 days post inoculation with Ophiostoma novo-ulmi. Observations were made on sections collected at 30–31 cm above the inoculation site. Average of observations from 2015 and 2016. | 100 | | DED BARRIER ZONE | | Not Available |
| DISEASE | DED % W/ BARRIER ZONE 90 DPI | Percent of trees (out of seven or eight trees) that had a barrier zone present 90 days post inoculation with Ophiostoma novo-ulmi. Observations were made on sections collected at 30–31 cm above the inoculation site. Average of observations from 2015 and 2016. | 100 | | DED BARRIER ZONE | | Not Available |
| INSECT | ELM FLEA WEEVIL ADULT FEEDING | Average adult feeding damage (holes/square cm) on sample of ten leaves from field grown trees. Leaves collected on 17 July 2017. | 1.23 | | ELM FLEA WEEVIL | | Not Available |
| INSECT | ELM FLEA WEEVIL LARVAL MINES | Average number of larval mines per sample of ten leaves from field grown trees. Leaves collected on 17 July 2017. | 5 | | ELM FLEA WEEVIL | | Not Available |
| INSECT | JAPANESE BEETLE FEEDING -LAB | Percent leaf tissue removed by adult female Japanese beetles feeding on Ulmus in no-choice (NC) feeding studies. Average of ten replicates per tree with one to three trees tested per accession. | 35 | | JAPANESE BEETLE FEEDING - LAB | | Not Available |
| INSECT | OVERALL INSECT RESISTANCE | Composite score of resistance to four major and eight minor insect pests. Low values indicate resistance and high values indicate susceptibility. Details provided in Methods section and in cited publication. | 48 | | OVERALL INSECT RESISTANCE | | Not Available |
| INSECT | ELM LEAF BEETLE FEEDING | Percent defoliation by elm leaf beetles on 15-cm-long shoots that were randomly selected from the north, south, east, and west quadrants of each tree growing under field conditions. Average of five to ten trees scored over the course of one to six years. | 1 | | ELM LEAF BEETLE FEEDING | | Not Available |
| INSECT | ELM LEAF BEETLE EGGS - FIELD | Number of elm leaf beetle eggs on 15-cm-long shoots that were randomly selected from the north, south, east, and west quadrants of each tree growing under field conditions. Average of five to ten trees scored over the course of one to six years. | 0 | | ELM LEAF BEETLE EGGS - FIELD | | Not Available |
| INSECT | ELM LEAF BEETLE LARVAE - FIELD | Number of elm leaf beetle larvae on 15-cm-long shoots that were randomly selected from the north, south, east, and west quadrants of each tree growing under field conditions. Average of five to ten trees scored over the course of one to six years. | 0 | | ELM LEAF BEETLE LARVAE - FIELD | | Not Available |
| INSECT | ELM LEAF BEETLE LARVAE - LAB | Number of days elm leaf beetle larvae survived on elm leaves in lab bioassay. Average of three replicates. | 3 | | ELM LEAF BEETLE LARVAE - LAB | | Not Available |
| INSECT | ELM LEAF BEETLE EGGS - LAB | Number of eggs laid per elm leaf beetle adult female on elm leaves in lab bioassay. Average of three replicates. | 0 | | ELM LEAF BEETLE EGGS - LAB | | Not Available |
| MORPHOLOGY | LEAF AREA | Leaf surface area in square centimeters; average of 20 leaves. | 28 | | LEAF AREA | | Not Available |
| MORPHOLOGY | LEAVES PER SHOOT | Number of leaves on the terminal 30 cm of new growth (measured spring 2009); average of ten shoots. | 20 | | LEAVES PER SHOOT | | Not Available |
| MORPHOLOGY | ADAXIAL LEAF PUBESCENCE | Leaf pubescence was characterized by examining upper (adaxial) leaf surfaces of leaves from each tree with a binocular microscope. Trichome density was subjectively rated as 0, 1, 2, 3, or 4 corresponding to glabrous (few or none), light, moderate, dense, or very dense, respectively. Twenty leaves analyzed. | 0 - Few or none. | | LEAF PUBESCENCE | | Not Available |
| MORPHOLOGY | ABAXIAL LEAF PUBESCENCE | Leaf pubescence was characterized by examining lower (abaxial) leaf surfaces of leaves from each tree with a binocular microscope. Trichome density was subjectively rated as 0, 1, 2, 3, or 4 corresponding to glabrous (few or none), light, moderate, dense, or very dense, respectively. Twenty leaves analyzed. | 3 - Dense. | | LEAF PUBESCENCE | | Not Available |
| MORPHOLOGY | TRICHOME DENSISTY | Number of trichomes per square centimeter of leaf along the midrib. Average of three leaves, each from a different tree. | 132 | | TRICHOME DENSISTY | | Not Available |