Table 2.
Stem lesion length 3 dpi, the number of cell layers in the stem cortex and stem diameter, and presence of strong autofluorescence (AF) for 26 Brassica genotypes (stems >4 mm in diameter) inoculated with Sclerotinia sclerotiorum MBRS-1 (Experiment 2); standard errors are indicated in parentheses
| Genotype name | Brassica species | Lesion length (mm) | No. of cortical cell layers | Stem diameter (mm) | Strong AF noted 3 dpi* | No. of plants (stem diameter >4mm) |
|---|---|---|---|---|---|---|
| 054111 | B. carinata | 3·2 (0·8) | 11·8 (0·3) | 6·3 (0·6) | – | 6 |
| Mystic | B. napus | 3·2 (0·6) | 13·4 (0·5) | 6·7 (0·6) | E | 9 |
| PI 197402 | B. carinata | 3·3 (0·6) | 13·5 (1·8) | 7·6 (1·4) | – | 4 |
| Charlton | B. napus | 3·4 (0·7) | 12·2 (0·5) | 6·7 (0·7) | C | 9 |
| RT108 | B. napus | 3·7 (1·0) | 13·0 (0·5) | 7·3 (0·6) | C | 9 |
| ZY006 | B. napus | 3·8 (0·9) | 11·4 (0·5) | 7·2 (0·6) | C | 9 |
| 06-P71–2 | B. napus | 3·9 (0·6) | 11·4 (1·9) | 7·2 (0·5) | E | 8 |
| YM14 | B. napus | 4·3 (0·8) | 14·5 (0·8) | 7·4 (0·6) | E | 10 |
| ZY005 | B. napus | 4·4 (0·5) | 16·1 (1·3) | 9·5 (0·8) | – | 8 |
| YM18 | B. napus | 4·9 (0·6) | 13·0 (0·4) | 6·6 (0·8) | E | 8 |
| JM06018 | B. juncea | 4·9 (0·6) | 9·2 (0·5) | 8·2 (0·6) | – | 9 |
| 054103 | B. carinata | 5·1 (0·8) | 10·7 (0·3) | 7·4 (0·6) | – | 9 |
| PI 193459 | B. carinata | 5·4 (0·8) | 12·0 (0·4) | 7·3 (0·8) | C | 8 |
| YM04 | B. napus | 5·5 (1·1) | 11·4 (0·4) | 7·0 (1·2) | L, E, C | 10 |
| YM12 | B. napus | 5·5 (0·9) | 12·8 (0·7) | 6·0 (0·7) | – | 8 |
| BRA 926/81 | B. carinata | 5·7 (2·0) | 9·3 (0·4) | 7·0 (0·6) | – | 7 |
| 054113 | B. carinata | 6·3 (1·4) | 10·3 (0·4) | 8·0 (0·7) | C | 9 |
| JO006 | B. juncea | 6·5 (0·9) | 8·3 (0·4) | 7·8 (0·5) | – | 8 |
| Montara | B. juncea | 6·7 (1·2) | 8·5 (0·5) | 7·1 (0·7) | L | 10 |
| PI 360884 | B. carinata | 6·8 (1·1) | 11·8 (0·7) | 7·9 (0·3) | – | 10 |
| 054106 | B. carinata | 6·9 (1·3) | 12·1 (1·4) | 7·4 (0·6) | – | 7 |
| SMP3–82 | B. carinata | 7·3(1·6) | 6·6 (0·4) | 7·3 (0·5) | – | 9 |
| JM06006 | B. juncea | 8·3 (2·4) | 7·6 (0·4) | 6·9 (0·6) | – | 9 |
| Xinyou 9 | B. juncea | 8·4 (1·7) | 6·9 (0·5) | 8·9 (0·5) | – | 9 |
| 054104 | B. carinata | 8·6 (2·9) | 12·6 (0·5) | 8·0 (0·5) | – | 9 |
| B. juncea #2 | B. juncea | 9·1 (1·1) | 7·4 (0·5) | 6·7 (0·5) | – | 7 |
| Significance (P) | 0·01 | <0·001 | 0·372 | |||
| Least significant difference (P ≤0·05) | 3·7 | 1·9 | – | |||
*Lignification indicated by the presence of autofluorescence. Letters indicate strong autofluoresence was observed ‘C’ in cortex, ‘L’ around lesion or ‘E’ as a distinct barrier in the endodermis. ‘–’ indicates no strong autofluorescence was observed.