Etiolation
Physical changes in the growth patterns of a plant brought on by sustained absence of light. These changes are characterized by lengthened internodes which produce long weak stems, fewer leaves, and pale yellow color (chlorosis). The physiological basis for etiolation is induction of the phytohormone, AUXIN.
Learning
Soil
Association Learning
Soil Microbiology
The presence of bacteria, viruses, and fungi in the soil. This term is not restricted to pathogenic organisms.
Aphonia
Golf
A game whose object is to sink a ball into each of 9 or 18 successive holes on a golf course using as few strokes as possible.
Environmental Health
Agrostis
A plant genus of the family POACEAE.