The volume of flame, however, is increased by inert gas, and there is a proportionate diminution of the heating effect. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 3 Various. Nitrogen by itself is an inert gas, colorless and uninflammable. Scientific American Supplement No. 819 Various.
Plants that have been damaged are particularly susceptible to being infected by tomato early blight alternaria. When a plant is infected with Alternaria Alternata, it will normally appear first on the lower leaves of the plant in the form of plant leaf spots that are either brown or black. These tomato leaf spots will eventually migrate to the stem and even the fruit of the tomato.
Stem has gone brown halfway up. Q. My tomatoes are grown in a greenhouse along with pepper plants. The stems have gone completely brown about half way up the stem, with a brown patch about 2 inches long. Some leaves have gone brown as well. Some of the tomatoes went brown. I have picked them off.