Disease. Several different plant diseases lead to various parts of plants turning yellow, most commonly the leaves. Viral diseases such as yellow mosaic cause plant leaves or flowers to turn yellow. Some fungal diseases may also cause yellowing. Rust, for instance, might cause yellow powder to form on the leaves.isease. Several different plant diseases lead to various parts of plants turning yellow, most commonly the leaves. Viral diseases such as yellow mosaic cause plant leaves or flowers to turn yellow. Some fungal diseases may also cause yellowing. Rust, for instance, might cause yellow powder to form on the leaves.
â¢ PLOW (verb) The verb PLOW has 3 senses: 1. to break and turn over earth especially with a plow. 2. deal with verbally or in some form of artistic expression. 3. move in a way resembling that of a plow cutting into or going through the soil. Familiarity information: PLOW used as a verb is uncommon.
plow development. ...the heavier soils of northwestern Europe. The wheeled plow, at first drawn by oxen but later by horses, made possible the northward spread of European agriculture. The 18th-century addition of the moldboard, which turned the furrow slice cut by the plowshare, was an important advance.