Studies on the droppers of tulip bulbs. IV.

On the effects of differences of producing conditions of seed bulbs upon the formation of droppers in the following generation

Abstract

1. The studies were carried out to examine whether the cultural conditions of the seed bulbs would affect the growth and the formation of droppers of tulips in the following generation when they were grown under the same field conditions.
The seed bulbs were selected from the bulbs produced in the previous studies, namely their produced conditions were differed in depth of planting of seed bulbs, soil moisture, soil nature, soil reaction, day length, and supplying amounts of nitrogen, phosphate, and potassium fertilizers, as mentioned in the previous report.