INBREEDING AND CROSSING IN AUTOTETRAPLOID MAIZE
INBREEDING AND CROSSING IN AUTOTETRAPLOID MAIZE
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DOI：
10.2135/cropsci1967.0011183x000700010025x
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发表时间：
1967-01-01
期刊：
影响因子：
2.3
通讯作者：
ALEXANDER, DE
中科院分区：
文献类型：
--
作者：
LEVINGS, CS;DUDLEY, JW;ALEXANDER, DE
测定了同源四倍体玉米的株高、穗长、穗重3个性状的杂交和近交效应。3个性状的世代均数排序为双交单交F2>；F3>；行。回归分析表明，几乎所有世代间的变异都可以用近交水平的差异来解释。讨论了这些结果对同源四倍体物种育种者的影响。
The effect of crossing and inbreeding was determined in autotetraploid maize for 3 characters, plant height, ear length, and ear weight. Rank of generation means for the 3 characters was in the order, double crosses > single crosses >F2 > F3 > lines. Regression analysis indicated that nearly all the variability among generation means could be accounted for by differences in level of inbreeding. Implications of these results for breeders of autotetraploid species were discussed.