Plants grown under Mg absence showed interveinal chlorosis
in all leaves (Figure 2F).
The symptoms of Mg deficiency were poor leaf formation, with irregular borders, and marked internal chlorosis
. This chlorosis
occurs because Mg is an important constituent of the chlorophyll, a greenish pigment found in chloroplasts that is responsible for photosynthesis.
Furthermore, leaf chlorosis
is a typical symptom resulting from NPK deficiency; the more severe the deficiency is, the greater the chlorosis
* Leaf, necrosis-free chlorosis
of Botosani 1 population, partial for a start and total in time (a);
The damage level of the cuttings was evaluated at 60 days after planting, and four levels of damage were identified: (1) cuttings without symptoms, (2) cuttings with symptoms of chlorosis
, (3) cuttings with rot, and (4) necrotic or dead cuttings.
Lastly, I used binary logistic regression to determine if treatment was a significant predictor of the likelihood of leaf chlorosis
in donor plants.
This is known as chlorosis
(loss of chlorophyll), where overall growth is impaired and older leaves begin to drop off.
Both groups showed disease symptoms, most notably chlorosis
, some necrosis, and stunted growth.
Beginning in July 2010, and annually since, symptoms of brown to black foliar spotting with margins of chlorosis
and signs of abundant uredinia production were observed on plots of 3 year-old 'Alamo' and 9 year-old 'EG1101' switchgrass, established at the Leveck Animal Research Facility in Starkville, Mississippi (Figures.
A: Green veins and yellow away from the veins is an indication of chlorosis
, most likely due to an iron deficiency.
The younger leaves showed chlorosis
followed by necrosis, which began in the leaves and moved towards the terminal buds, with a loss of apical dominance (Figure 1).