Table 5.
A complete list of standard descriptors for eggplants used at the World Vegetable Center (AVGRIS, 2017).
| Code | Definition | Scale |
|---|---|---|
| S110 | Germination period | Number of days from sowing until first germination |
| S120 | Cotyledonous leaf length | mm (N = 10) |
| S130 | Cotyledonous leaf width | mm (N = 10) |
| S140 | Cotyledonous leaf color | 3 = Green, 5 = Light violet, 7 = Violet, X = Mixture |
| S150 | Cotyledon length/width ratio | 1 = Very low (<2.0), 3 = Low (~2.2), 5 = Intermediate (~2.5), 7 = High (~3.5), 9 = Very high (>5.0), X = Mixture |
| S210 | Plant growth habit | 1 = Very upright, 3 = Upright, 5 = Intermediate, 7 = Prostrate, X = Mixture |
| S215 | Stem ridging | 0 = Absent, 3 = Shallow, 5 = Intermediate, 7 = Prominent, X = Mixture |
| S216 | Prickles on stem | 0 = Absent, 3 = Short, 5 = Intermediate, 7 = Long, X = Mixture |
| S217 | Degree of stem pubescence | 0 = Absent, 1 = Few, 2 = Intermediate, 3 = Many, 4 = Very many, X = Mixture |
| S220 | Plant height at flowering (cm) | 1 = Very short (<20), 3 = Short (~30), 5 = Intermediate (~60), 7 = Tall (~100), 9 = Very tall (>150), X = Mixture |
| S230 | Plant branching (no. of primary branches per plant) | 1 = Very weak (~2), 3 = Weak (~5), 5 = Intermediate (~10), 7 = Strong (~20), 9 = Very strong (>30), X = Mixture, M = Uncountable |
| S240 | Plant breadth at flowering (cm) | 1 = Very weak (~2), 3 = Weak (~5), 5 = Intermediate (~10), 7 = Strong (~20), 9 = Very strong (>30), X = Mixture, M = Uncountable |
| S250 | Petiole color | 1 = Green, 2 = Greenish violet, 3 = Violet, 7 = Dark violet, 9 = Dark brown, X = Mixture |
| S260 | Petiole length (mm) | 0 = None, 1 = Very short (<5), 3 = Short (~10), 5 = Intermediate (~30), 7 = Long (~50), 9 = Very long (>100), X = Mixture |
| S270 | Leaf blade length (cm) | 3 = Short (~10), 5 = Intermediate (~20), 7 = Long (~30), X = Mixture |
| S280 | Leaf blade width (cm) (maximum width) | 3 = Narrow (~5), 5 = Intermediate (~10), 7 = Wide (~15), X = Mixture |
| S290 | Leaf blade lobes | 1 = Very weak, 3 = Weak, 5 = Intermediate, 7 = Strong, 9 = Very strong, X = Mixture |
| S300 | Leaf blade tip angle (°) | 1 = Very acute (<15°), 3 = Acute (~45°), 5 = Intermediate (~75°), 7 = Obtuse (~110°), 9 = Very obtuse (>160°), X = Mixture |
| S310 | Leaf blade color (upper surface) | 1 = Light green, 3 = Green, 5 = Dark green, 7 = Greenish violet, 9 = Violet, X = Mixture |
| S320 | Leaf prickles (no. of leaf prickles on upper surface of the leaf) | 0 = None, 1 = Very few (1–2), 3 = Few (3–5), 5 = Intermediate (6–10), 7 = Many (11–20), 9 = Very many (>20), X = Mixture |
| S330 | Leaf hairs (no./per mm2, lower surface) | 1 = Very few (<20), 3 = Few (20–50), 5 = Intermediate (50–100), 7 = Many (100–200), 9 = Very many (>200), X = Mixture |
| S410 | Flowers per inflorescence | Number (N = 10) |
| S420 | Flowering time | Number of days from sowing until first flower opening (N = 10) |
| S421 | Stamen length | cm (N = 5) |
| S422 | Petal length | cm (N = 5) |
| S423 | Sepal length | cm (N = 5) |
| S430 | Number of hermaphrodite flowers per inflorescence | 1 = One, 2 = Two, 3 = Three, 4 = Four or more but some flowers functionally male, 5 = Four or more, no functionally male, X = Mixture |
| S440 | Corolla color | 0 = Yellow, 1 = Greenish white, 3 = White, 5 = Pale violet, 7 = Light violet, 9 = Bluish violet, X = Mixture |
| S450 | Relative style length (mm) | 3 = Short (~1), 5 = Intermediate (~3), 7 = Long (~5), X = Mixture |
| S460 | Pollen production | 0 = None, 3 = Low, 5 = Medium, 7 = High, X = Mixture |
| S470 | Style exsertion | 3 = Inserted, 5 = Intermediate, 7 = Exerted, X = Mixture |
| S510 | Fruit length from base of calyx to tip of fruit (cm) | 1 = Very short (<1), 3 = Short (~2), 5 = Intermediate (~5), 7 = Long (~10), 9 = Very long (>20), X = Mixture |
| S520 | Fruit breadth diameter at broadest part (cm) | 1 = Very small (<1), 3 = Small (~2), 5 = Intermediate (~3), 7 = Large (~5), 9 = Very large (>10), X = Mixture |
| S530 | Fruit length/breadth ratio | 1 = Broader than long, 3 = As long as broad, 5 = Slightly longer than broad, 7 = Twice as long as broad, 8 = Three times as long as broad, 9 = Several times as long as broad, X = Mixture |
| S540 | Fruit curvature | 1 = None, 3 = Slightly curved, 5 = Curved, 7 = Snake shaped, 8 = Sickle shaped, 9 = U shaped, X = Mixture |
| S550 | Fruit pedicel length (mm) | 1 = Very short (<5), 3 = Short (~10), 5 = Intermediate (~25), 7 = Long (~50), 9 = Very long (~75), X = Mixture |
| S560 | Fruit pedicel thickness (mm) | 1 = Very thin (<1), 3 = Thin (~2), 5 = Intermediate (~3), 7 = Thick (~5), 9 = Very thick (>10), X = Mixture |
| S570 | Fruit pedicel prickles | 0 = None, 1 = Very few (<3), 3 = Few (~5), 5 = Intermediate (~10), 7 = Many (~20), 9 = Very many (>30), X = Mixture |
| S580 | Fruit shape | 3 = About 1/4 way from base to tip, 5 = About 1/2 way from base to tip, 7 = About 3/4 way from base to tip, X = Mixture |
| S590 | Fruit apex shape | 3 = Protruded, 5 = Rounded, 7 = Depressed, X = Mixture |
| S600 | Fruit color at commercial ripeness | 1 = Green, 2 = Milk white, 3 = Deep yellow, 4 = Fire red, 5 = Scarlet red, 6 = Lilac gray, 7 = Purple, 8 = Purple black, 9 = Black, X = Mixture |
| S610 | Fruit color distribution at commercial ripeness | 1 = Uniform, 3 = Mottled, 5 = Netted, 7 = Striped, X = Mixture |
| S620 | Fruit color at physiological ripeness | 1 = Green, 2 = Deep yellow, 3 = Yellow orange, 4 = Deep orange, 5 = Fired red, 6 = Poppy red, 7 = Scarlet red, 8 = Light brown, 9 = Black, X = Mixture |
| S630 | Fruit position | 1 = Erect, 3 = Semi-erect, 5 = Horizontal, 7 = Semi-pendant, 9 = Pendant, X = Mixture |
| S640 | Relative fruit calyx length | mm (N = 10) |
| S650 | Fruit calyx prickles (N = 10) | 0 = None, 1 = Very few (<3), 3 = Few (~5), 5 = Intermediate (~10), 7 = Many (~20), 9 = Very many (>30), X = Mixture |
| S660 | Fruit cross section | 1 = Circular, no grooves, 3 = Elliptic, no grooves, 5 = Few grooves (~4), 7 = Many grooves (~8), 9 = Very irregular, X = Mixture |
| S680 | Locules per fruit | Number (N = 10) |
| S690 | Fruit flesh density | 1 = Very loose (spongy), 3 = Loose (crumbly), 5 = Average density, 7 = Dense, 9 = Very dense, X = Mixture |
| S700 | Fruits per infructescence | Number (N = 10) |
| S710 | Fruit per plant | Number (M = Uncountable) |
| S720 | Fruit yield per plant (gm) | 1 = Very low (<250), 3 = Low (~500), 5 = Intermediate (~1,000), 7 = High (~2,500), 9 = Very high (>5,000), X = Mixture |
| S730 | Fruit flavor | 3 = Bitter, 5 = Intermediate, 7 = Sweet, X = Mixture |
| S760 | Varietal mixture condition | 0 = Pure, 3 = Slight mixture, 5 = Medium mixture, 7 = Serious mixture |
| S770 | Flesh browning after cutting | 1 = 0–1 min, 2 = 1–3 min, 3 = 3–5 min, 4 = 5–7 min, 5 = 7–9 min, 6 = 9–12 min, 7 = 12–15 min, 8 = 15–20 min, 9 = 20–30 min, 10 = 30 min or more |
| S810 | Seed color | 1 = White, 2 = Light yellow, 3 = Grey yellow, 4 = Brownish yellow, 5 = Brown, 6 = Brown black, 9 = Black, X = Mixture |
| S820 | Seeds per fruit | 0 = None, 1 = Very few (<10), 3 = Few (~50), 5 = Intermediate (~100), 7 = Many (~300), 9 = Very many (>500), X = Mixture |
| S825 | Seed density | 3 = Scarce, 5 = Intermediate, 7 = Dense, X = Mixture |
| S830 | Seed size (mm) | 3 = Small (~2), 5 = Intermediate (~3), 7 = Large (~4), X = Mixture |
| S840 | 100 seeds weight | g (average of 3 replicates) |
| S900 | Harvest produce | 1 = Bulk, 2 = 2 sub-accessions, 3 = 3 sub-accessions |