Agronomy and Horticulture Department


Date of this Version



Published in Crop Science (May-June 1961) 1: 219-221.


Treatment of dormant seeds of a wide variety of plants with X-rays or thermal neutrons results in pronounced effects on stature, survival, and various other attributes in seedlings grown from the treated seeds. It seems highly probable that some of these effects involve alterations in the protein metabolism of the seedling, and these alterations might be expected to lead to changes in levels of such ninhydrin-positive substances as amino acids and peptides. This paper is concerned with a preliminary study in which filter paper chromatography was used to investigate possible differences in ninhydrin-positive substances in etiolated maize shoots grown from control and irradiated seeds.