Studies on the Cause and mechanism of poor plant growth of the F₁ hybrids obtained from the crosses between Hibiscus coccineus (H. coccinea) and H. Moscheutos (H. moschata) : Studies on interspecific and intergeneric hybridization in the Malvaceae VIII

Abstract

(1) In the cross between “Momiji-Aoi” and “Kusa-Fuyo”, the characteristics of F₁ hybrids between H. coccineus and H. Moscheutos obtained from Osaka were extremely different from those of F₁ hybrids between H. coccinea and H. moschata obtained from France about twenty five years ago. Accordingly experiments were to examine whether or not H. coccineus and H. coccinea or H. Moscheutos and H. moschata are identical species and also to determine the characteristics of F₁ hybrids and their causes.