| 1572584 |
high soluble salts |
|
Lettuce seedling showing burned rootlets. See 1572581 for photo of field. January 1997 |
| 1572583 |
high soluble salts |
|
Lettuce seedling showing burned rootlets. See 1572581 for photo of field. January 1997 |
| 1572582 |
high soluble salts |
|
Lettuce seedling showing burned rootlets. See 1572581 for photo of field. January 1997 |
| 1572581 |
high soluble salts |
|
Stand establishment problems in lettuce. Note the areas of the field where plants are missing or stunted. See companion photos 1572582-84. January 1997 |
| 1572478 |
high soluble salts |
|
Lettuce foliage burned by anhydrous ammonia. November 1996 |
| 1572203 |
high soluble salts |
|
Ammonia injury in lettuce roots. |
| 1572000 |
abiotic stresses (general) |
|
Discoloration of the main stem in lettuce plant. Cause not determined beyond abiotic stress. March 1996 |
| 1572001 |
abiotic stresses (general) |
|
Discoloration of the main stem in lettuce plant. Cause not determined beyond abiotic stress. March 1996 |
| 1571983 |
cold injury (low temperature) |
|
Low temperatures cause the epidermis to separate from lower layers and form condensation in the space between. January 1996 |
| 1571981 |
cold injury (low temperature) |
|
Low temperatures cause the epidermis to separate from lower layers and form condensation in the space between. January 1996 |
| 1571980 |
cold injury (low temperature) |
|
Low temperatures cause the epidermis to separate from lower layers and form condensation in the space between. January 1996 |
| 1571815 |
cold injury (low temperature) |
|
Low temperatures cause the epidermis to separate from lower layers and form condensation in the space between. January 1996 |
| 1571810 |
cold injury (low temperature) |
|
Low temperatures cause the epidermis to separate from lower layers and form condensation in the space between. January 1996 |
| 1571804 |
abiotic stresses (general) |
|
Lettuce plant showing girdling at the soil line due to wind whipping. January 1996 |
| 1570889 |
high soluble salts |
|
Lateral roots on lettuce seedling are few and many with blackened tips. Soil toxin suspected (e.g., fertilizer injury, allelopathic crop residue). November 1994. |
| 1570953 |
wind |
|
High winds at the seedling stage causes the stem to break at the soil line. January 1996 |
| 1570848 |
wind |
|
Wind whip. October 1994 |
| 1570976 |
cold injury (low temperature) |
|
Freezing causes epidermis to separate from underlying layers of leaf tissue. January 1995 |
| 1570977 |
cold injury (low temperature) |
|
Freezing causes epidermis to separate from underlying layers of leaf tissue. January 1995 |
