1961 Volume 30 Issue 2 Pages 147-152
There have been cultivated for long time many local varieties of turnip in Japan. The author has collected about thirty of such local varieties belonging to the European type. Studies were carried out on the manifestation of characters in F, hybrids to elucidate the relationships among such varieties. 48 hybrids were obtained using 17 varieties, and their characters were examined (Tables 1 and 2). The results are summarized as follows.
1. Leaf and root shape and plant form in the hybrids were nearly intermediate between those of the parents.
2. Anthocyan pigment was dominant over green coloring of hypocotyle. The hybrids between Atsumi (purple hypocotyle) and green varieties, however, had green and in some cases light purple hypocotyle.
3. Purple color of petiole was dominant over green. Purple was resulted in the hybrids between red and green.
4. hairy. was dominant over Glabrous
5. Color of root in the F1 hybrids was as follows (Fig. 1)
On the above-ground portion, green and purple were dominant over white, and purple appeared in the hybrids between red and white.
On the under-ground portion, white was dominant over purple or red.
Purple was dominant over red.
6. The A type of seed coat structure was dominant over the B type.
7. Mutual relationships among the local varieties and utility of F1 hybrids of these varieties were discussed basing on the above mentioned results.
