Rheum L.

Descriptors
Category: BIOLOGY

1. 023 Susceptibility to diseases - Ascochyta rhei ELLIS et EBERH. (023 SUSCEPTIBILITY TO DISEASES) Percentage of damaged tissues
2. 024 Susceptibility to diseases - Peronospora arborescens(BERK.)CASP. (024 SUSCEPTIBILITY TO DISEASES) Percentage of damaged tissues
3. 025 Susceptibility to disease - Peronospora jaapiana MAGNUS (025 SUSCEPTIBILITY TO DISEASE ) Percentage of damaged tissues
4. 026 Susceptibility to pests - Aphis fabae SCOPOLI (026 SUSCEPTIBILITY TO PESTS - )
5. 027 Susceptibility to pests - Chaetocnema concinna De GEER (027 SUSCEPTIBILITY TO PESTS - )
6. 028 Susceptibility to pests - Gastroidea viridula DEG. (028 SUSCEPTIBILITY TO PESTS - )

Category: CHEMICAL

1. 029 Ascorbic acid content (029 ASCORBIC ACID CONTENT ) Average value for the total harvest
2. 030 Oxalic acid content (030 OXALIC ACID CONTENT ) Average value for tha total harvest
3. 031 Soluble solids content (031 SOLUBLE SOLIDS CONTENT ) Average value for tha total harvest

Category: MORPHOLOGY

1. 001 Plant - tuft diameter (001 PLANT - TUFT DIAMETER ) Average for the whole vegetation period
2. 002 Leaf - type (002 LEAF - TYPE )
3. 003 Leaf - blistering (003 LEAF - BLISTERING )
4. 004 Leaf - margin undulation (004 LEAF - MARGIN UNDULATION )
5. 005 Leaf - colour of lamina front (adaxial) side (005 LEAF - COLOUR OF LAMINA FR)
6. 006 Leaf - length of lamina (006 LEAF - LENGTH OF LAMINA ) Average for the total harvest period
7. 007 Leaf - width of lamina (007 LEAF - WIDTH OF LAMINA ) Average for the total harvest period
8. 008 Leaf - number per plant (008 LEAF - NUMBER PER PLANT ) Average for the whole vegetation period
9. 009 Leaf - petiole skin colour (up of the base) (009 LEAF - PETIOLE SKIN COLOUR) In harvest maturity
10. 010 Leaf - petiole skin colour (on the base) (010 LEAF - PETIOLE SKIN COLOUR) In harvest maturity
11. 011 Leaf - shape of petiole base in cross-section (011 LEAF - SHAPE OF PETIOLE BA) In harvest maturity
12. 012 Leaf - surface of petiole back (abaxial) side (012 LEAF - SURFACE OF PETIOLE )
13. 013 Leaf - flesh colour in petiole base (013 LEAF - FLESH COLOUR IN PET) In harvest maturity
14. 014 Leaf - length of petiole (014 LEAF - LENGTH OF PETIOLE ) Average for the total harvest period (ČSN 463 130)
15. 015 Leaf - petiole thickness (diameter) (015 LEAF - PETIOLE THICKNESS () Average for the total harvest period (ČSN 463 130)
16. 016 Flower - tepal colour (016 FLOWER - TEPAL COLOUR )
17. 017 Flowering stem - height (017 FLOWERING STEM - HEIGHT ) Height of the highest flowering stem per plant
18. 018 Flowering stem - number per plant (018 FLOWERING STEM - NUMBER PE) Average number
19. 019 Seed - seed colour (019 SEED - SEED COLOUR ) To maturity

Category: PHENOLOGY

1. 020 Beginning of budding (020 BEGINNING OF BUDDING ) Comparison to the intermediate cv. Jara
2. 021 Beginning of flowering (021 BEGINNING OF FLOWERING ) Comparison to the intermediate cv. Jara
3. 022 End of flowering (022 END OF FLOWERING ) Comparison to the intermediate cv. Jara