New Jersey Agricultural Experiment Station Annual Report 27: 441-443 (1906)
Byron D. Halsted, Sc.D.
Earle H. Owen, B.S., Assistant

Reciprocal Hybrids of American and Chinese Eggplants.

Seventeen blend plants were grown this season of the "Dwarf Purple" upon the ''Scarlet Chinese"órepresented in the records by the fraction 6/25. This set of plants was very uniform in size (two and a half feet high), and had purple foliage and stems, agreeing quite closely with the male parent. The bloom appeared the middle of June, and the plants continued to be full of flowers until cut down by the autumn frosts. There were only a few fruits produced, and these were small, much corrugated, and of a light orange color. The "Chinese" parent evidently was strongly prepotent in the fruit qualities, while the "American" seems to be more influential in the vegetative organs, but, upon the other hand, the "spines" of the "Chinese" were somewhat intensified.

A total of seventy-six (76) fruits of this hybrid was gathered upon October 23d, varying from two inches to three-fourths inch in longest diameter. The smaller fruits were all seedless, and the largest had only a few seeds.

The reciprocal of the above hybrid was represented by eleven thrifty plants, resulting from the union of the "Scarlet Chinese" upon the "Dwarf Purple," the record fraction here being 25/6, that is, the reverse of the last. The plants were in full bloom upon August 9th, and the record shows that the plants were practically the same as those of 6/25, above described, excepting in the matter of size, they being uniformly over a third larger (four feet). The plants were almost covered with blossoms throughout the season, but were not prolific. A total of one hundred and fourteen fruits was gathered upon October 23d, varying from three-fourths inch to two inches in longest diameter; the latter only contained any seeds.

When the gathered crop of these two blocks of reciprocals was studied side by side a close resemblance was observed in size and form of the fruits, those of 25/6 being more uniform, but had the whole one hundred and ninety specimens been mixed together, it would have been impossible to separate them again into their respective piles. It is noted that the 6/25 produced only four and a half fruits per plant, while its reciprocal, 25/6, yielded an average of ten. In both hybrids there were plants entirely without fruits, and it was further observed that the smaller plants of each set were the most prolific.


PLATE XI
Eggplants. The upper half shows a series of stems with fruits of the “American-Chinese” hybrids (second generation). The types of the parents being shown at 1 and 12. In the lower half of the plate are shown samples of the blend of “Pride of Sunnyside” upon the “Scarlet Chinese,” the parents being given at 1 and 20.