山东地方普通小麦品种与黑麦杂交亲和性的研究

６５个山东地方普通小麦品种与奥地利黑麦进行杂交，结果表明，高亲和材料在山东麦区普遍存在。其中结实率大于５０％的有１０个品种，并有长芒透龙白，码昨头火麦、小芒麦和白秃头４个品种的亲和性与中国春小麦相似，经ｔ检验无显著差异，其基因型可能为ｋｒ１ｋｒ１ｋｒ２ｋｒ２；结实率在３０％￣５０％间的品种有６个（其基因型可能为ｋｒ１ｋｒ１Ｋｒ２Ｋｒ２）；结实率在１０％￣３０％间的品种有６个（其基因型可能为Ｋｒ１Ｋ

Crossability of Some Land Wheat Races from Shandong with Rye

land wheat races were crossed with rye to detect the difference of crossability among wheat genotypes of Shandong.The results showed that 31 land races from Shandong were crossable with rye.There were 10 land races with a seedsetting ratio of more than 50%,4 of which were similar to the Chinese spring,their genotype might be kr1 kr1 kr2 kr2; 6 land races with seedsetting ratio 30-50% ( kr 1 kr 1 Kr 2 Kr]2);6 landraces with seedsetting ratio of 10-30% ( Kr 1 Kr 1 kr 2 kr 2); 34 landraces with a seedsetting of less than 5% ( Kr 1 Kr 1 Kr 2 Kr 2);and the other 9 landraces with the seedsetting ratio of 5-10%,their genotype was unknown.The genotypic distribution of the crossability showed that there were higher frequencies of high crossable land races in the southern and the middle regions of Shandong province.