Selective fertilization in plants in relation to plant breeding. I. Chinese cabbage(Brassica pekineesis RUPR. ). 1 . Existence of selective fertilization and its essential dependency on compatibility between varieties.

Abstract

In order to explore the possibility of hybrid seed production in Chinese cabbage, a series of experi mnents were carried out to first ascertain the exis. tence or otherwise of selective fertilization in in this crop. Combination of any two from among the five varieties, viz., Matsushimashin No. 2, Kashin, Hotoren, Nozaki No.2 and Aichi were mix-planted in isolated fields (Tables 1 and 2) .