The Distribution of Substances similar to Gibberellic Acid in Higher Plants

Abstract

Gibberellic-acid-like substances have been found in extracts from all parts of seedlings of tall and dwarf peas and in mature seeds of wheat, French bean and tall and dwarf peas. They were present in amounts equivalent to o‘1–0’3 μg-gibberellic acid in 100 plants (F.W. 100–200 g.). Immature runner bean seed yielded larger quantities, equivalent to 0.25 μg. gibberellic acid per gram fresh weight, distributed between testas, cotyledons, and embryos.