Why do orchid leaves turn yellow? The main reasons.
Why do orchid leaves turn yellow and what to do? In this video, we'll discuss the causes. We'll also discuss the biological processes occurring in orchid leaves that lead to yellowing and death. The causes of yellowing under a microscope include orchid pests and pathogens. You'll be surprised, but there aren't many causes of leaf yellowing.
Does mechanical damage cause leaf yellowing? Absolutely not! Mechanical damage triggers the release of the phytohormone ethylene, which is called the damage hormone, and it causes the rapid formation of scar tissue, a cork-like structure that transforms the leaf parenchyma. This appears as a whitish scar. The leaf, however, usually remains completely green. Can excessive light cause yellowing? Absolutely not. On the contrary, the more UV light, the more intense photosynthesis, the more chloroplasts, and the greener the leaves. #orchidhome #orchids #orchidcare #phalaenopsisorchid #phalaenopsis #orchidreanimation #orchidreanimation #phalaenopsis #orchidroots #orchidwatering #orchidvideo #orchomania #terrarium #moss #orchidcareandgrowing
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