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They have a magnesium deficiency.
Magnesium is a mineral that is important in making chlorophyll (the green pigment that makes leaves green.) So a lack of it means that the leaves go yellow.
Wiki User
∙ 14y ago
Wiki User
∙ 12y agoOncidium leaves turn yellow due to a natural process of loosing old growth. If the oncidium is in full sun, yellowing can be causd by too much sun. If you have had it for more than two years and leaves turn yellow it may be time to repot it. Rotting medium causes a nitrogen deficiency and causes yellowing of leaves
Wiki User
∙ 13y agoeither because they have been over watered or because they have not gotten enough sunlight/energy or water. basically they turn yellow when they die, and those are the main natural reasons
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What plant has oblong leaves?
tapioca plants
What makes the yucca cane plant leaves turn yellow?
on of the most common reasons why leaves fall off yucca plants is due to over watering
Characteristics that helped seedless plants become better adapted to land?
Stomata on leaves
Does magnesium create dead leaves and yellow leaves on a plant?
Magnesium deficiency create dead leaves and yellow leaves on a plant.
Why are your English laurel leaves turning yellow in June?
Because they are acid loving plants. Put miracle grow miracid on them and be amazed! I was!
What causes yellowing leaves on a Rhododendron?
I think it's a deficiency of nitrates, which help plants to produce chlorophyll, and which is the pigment that turns leaves green, and without it, leaves can become yellow.
What are the two types of leaves?
The two types are the green and yellow leaves
What are the symptoms of plants that are dificient in nitrogen?
stunted growth, yellow leaves
How do you prevent yellowing leaves on pepper plants?
Yellow leaves are usually a sign of overwatering.
Why do the leaves of plants become yellow or pale green when they are kept in the dark?
If they are over or under watered they can turn yellow. But if kept in the dark they turn yellow because the chlorophyll (which gives plants its green hue) is unable to absorb energy from light to start the process of photosynthesis. If your plants are turning yellow, try and find a sunnier spot, or get a lamp for it.
Are yellow or orange pigments that appear in fall leaves?
the pigments become visible in the leaves as the seasons change! (A+)
What plant has oblong leaves?
tapioca plants
What happens in lack of phosphate ions in plants?
A lack of phosphates in plants causes poor growth and leaves that turn a dull green with purple or yellow tints. Sometimes leaf margins may become slightly scorched. HaSr
What is 'yellow vein mosaic of bhendi'?
Bhendi yellow vein mosaic is a disease that infects plants and causes yellow and green alternating patches on the leaves. Plants that have the disease need to be burned. The disease was first identified in 1924.
Why leaves are said to be excretophores?
Leaves are said to be excretophores because in the uptake of nutrients delivered from soil through root tips, through stems and into the leaf, nutrients become part of the leaf. Having absorbed the nutrients, the leaf develops by way of photosynthesis. Having developed and having remained attached to the plant for awhile, the leaf detaches from the plant, (or is excreted) taking the ingested nutrients (that may even include contaminants) with it as it falls from the plant.
What happens to plants when they do not get all their minerals?
If plants don't get minerals their leaves will go yellow, pale andthin because they need light and water.
What makes the yucca cane plant leaves turn yellow?
on of the most common reasons why leaves fall off yucca plants is due to over watering
