抄録
1. Cytogenetical researches were conducted on the F1 plants raised from Triticum Spelta with 2species of Secale (Vavilovii and africanum). 2. The percentage of the matured F1 plants to the number of pollinated flowers in these hybrids were found to be 0.311 and 0.393 percent respectively.3. The external characters of both F1 plants raised from the 2 combinations resembled more closely to the mother plant T. Spelta than the intermediate of bot.h parents.4. TSpeSaF1 plant showed very low percentage of fertility while TSpeSVF1 was completelysterile. 5. The number of somatic chromosomes in root tip cells of the 2 F1 hybrids was 28 which corresponds exactly to the sum of the gametic number of chromosomes of the parents,
