| 5475295 |
potassium deficiency |
|
Late stage potassium deficiency in coconut palm showing chlorotic, necrotic new leaves and tapered trunk. This palm died shortly after this photo was taken. |
| 5475271 |
manganese deficiency |
|
Severe Mn deficiency symptoms on Syagrus romanzoffiana with only necrotic petiole stubs emerging. |
| 5475262 |
magnesium deficiency |
|
Older leaf of Phoenix canariensis showing Mg deficiency symptoms towards the leaf base and K deficiency symptoms towards the leaf tip. |
| 5475253 |
iron deficiency |
|
Severe Fe deficiency on queen palm seedling (left). Normal palm on right for comparision. |
| 5475212 |
boron deficiency |
|
Zigzag shaped leaflet tips ("hookleaf") in coconut is caused by a mild and temporary boron deficiency. |
| 5475211 |
boron deficiency |
|
Crumpled ("accordion-leaf") young leaves caused by a chronic and severe boron deficiency. Note that the youngest leaf is emerging normally, indicating that this palm is recovering. |
| 5475209 |
boron deficiency |
|
Severe epinasty in Roystonea regia caused by chronic boron deficiency. |
| 5475207 |
boron deficiency |
|
Leaf truncation in coconut caused by periodic temporary boron deficiency. This pattern was the result of heavy rainfall events approximately every 10 days during the development of the leaf in the center. |
| 5475203 |
boron deficiency |
|
Branching in queen palm caused by boron deficiency. |
| 5427722 |
iron deficiency |
|
Interveinal chlorosis due to iron deficiency
|
| 5427737 |
iron deficiency |
|
Interveinal chlorosis due to iron deficiency |
| 1399026 |
nutrient deficiency |
|
chlorosis |
| 1399027 |
nutrient deficiency |
|
chlorosis |
| 1440092 |
calcium deficiency |
|
Ca deficiency in burley tobacco is not common but sometimes occurs when soil exchange capacities and/or Ca saturation levels are low. Such conditions are most likely to occur in sandy soils with low pH. Ca deficiency symptoms first appear in the upper or youngest leaves because Ca is immobile within the plant. Typically, symptoms begin in the bud with the development of a pale green color, followed by rolling and downward curing of the new leaves. As the deficiency becomes more acute, dead or necrotic areas develop at tips and along edges of leaves. Under extreme deficiencies, the terminal bud eventually dies. Lower and middle leaves of Ca deficient plants may develop a darker a darker than normal green color. |
| 1398098 |
oak tatters |
|
|
| 1399067 |
iron deficiency |
|
iron deficiency |
| 5410680 |
straight head |
|
Upright heads with sterile grain due to the straight head disorder. |
| 5367481 |
nutrient deficiency |
|
Pig showing symptoms of hairless pig malady, caused by a deficiency of iodine in its diet. |
| 5367439 |
nutrient excess or toxicity (general) |
|
Hoof of a horse showing symptoms of selenium toxicity. |
| 5390557 |
straight head |
|
Upright rice head in filed due to straight head disorder |
| 5368761 |
zinc deficiency |
|
Zinc deficiency. Shortening of internodes and light streaking of leaves followed by a broad stripe of bleached tissue on each side of the midrib. Occasionally the leaf edges and interior of the stalks at the nodes appear purplish. |
| 5368762 |
nutrient deficiency |
|
Shortening of internodes and light streaking of leaves followed by a broad stripe of bleached tissue on each side of the midrib. Occasionally the leaf edges and interior of the stalks at the nodes appear purplish. Zinc deficiency |
| 5332036 |
magnesium deficiency |
|
|
| 5373176 |
nutrient deficiency |
|
Physiological minor element def. bent tip |
| 5373163 |
boron deficiency |
|
|
| 5366465 |
iron deficiency |
|
Ornamental rose bush showing symptoms of iron chlorosis. |
| 5361287 |
nutrient deficiency |
|
Ears of corn showing fertility stress on a pile of seeds being weighed after harvest. |
| 5361281 |
nutrient deficiency |
|
Field corn plant, the bottom leaf of which is showing symptoms of nitrogen deficiency. |
| 1494156 |
iron deficiency |
|
Iron deficiency |
| 1505035 |
nutrient deficiency |
|
Nutrient deficiency; Shoal Creek RD |
| 5045078 |
oak tatters |
|
|
| 5054053 |
iron deficiency |
|
iron chlorosis |
| 5054057 |
iron deficiency |
|
iron chlorosis |
| 1254076 |
iron deficiency |
|
Iron chlorosis on foliage, Fort Collins, CO. |
| 1254075 |
iron deficiency |
|
Iron chlorosis on foliage of trident maple, Fort Collins, CO. |
