The Influence of Some Environmental Factors Upon the Chromosome Phenotype in Meristematic Cells of Rye

Abstract

The chromosome phenotype in rye changes with growth and development of the plant, such that the largest chromosome volume is attained under conditions of maximum relative growth rate. In addition, a number of environmental factors, viz;-mineral nutrition, growth substances, temperature and root excision, which cause reduced growth, also affect the chromosome phenotype. Slower growth is associated with reduced chromosome volume and a reduced level of total nuclear protein.