The use of male sterility of OGURA type in radish breeding for heterosis

The morphological marker characteristics of the flower and cytological features of microgametogenesis and microsporo-genesis in sterile plants have been studied to identify and select plants bearing Ogura male sterility type. As result of analysis of hybrid plants and inbreeding progenies based on male sterile form of Japanese radish the three groups of progenies were observed with 100 % of sterile plants, all of them are to be the initial breeding lines for production of radish hybrids F 1.