John F. Pelton


If it were possible to find readily observable morphological features by which survival of grasses subjected to overgrazing might be predicted it would doubtless be of considerable use in range management practice and research. Reliability of estimates of the condition of the range would thereby be appreciably increased, a much needed goal in the management of grasslands. This paper is a report on experiments designed to test the correlation between several readily measurable criteria of size and apparent vegetative vigor of individual bunches of porcupine grass, Stipa spartea Trin., and their survival from defoliation.