NATURAL CROSS-POLLINATION OF 12 SOYBEAN CULTIVARS IN ARKANSAS
NATURAL CROSS-POLLINATION OF 12 SOYBEAN CULTIVARS IN ARKANSAS
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DOI：
10.2135/cropsci1994.0011183x003400020013x
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发表时间：
1994-03-01
期刊：
影响因子：
2.3
通讯作者：
CAVINESS, CE
中科院分区：
文献类型：
--
作者：
AHRENT, DK;CAVINESS, CE
以前的试验表明，一些异花授粉（通常为0.05）的百分比异花授粉在1990年，但在1991年和2年合并时不同。“竞争者”的异花授粉率（1.22%）显著高于本MG内的其他品种。1990年，MG V和VI内的品种差异显著，但1991年差异不大。根据2年的平均值，异花授粉变化从低的0.09%的“沃尔特斯”到高的1.63%的“边缘”。结果表明，不同品种间异花授粉的程度差异显著（P > 0.05），在有足够传粉者和其他有利条件的环境中，MG IV、V和VI品种的异花授粉率可达2.5%。基于这些结果，大豆育种者应该使用比过去通常使用的新品种的初始后代行和育种种子更大的隔离，因为一些品种的异交潜力增加。
Previous experiments have shown that some cross-pollination (usually 0.05) for percent cross-pollination in 1990, but were different in 1991 and when the 2 yr were combined. 'Competitor' was significantly higher for percent cross-pollination (1.22%) than the other cultivars within this MG. Cultivars within MG V and VI differed significantly in 1990 but were not different in 1991. Based on a 2-yr average, cross-pollination varied from a low of 0.09% for 'Walters' to a high of 1.63% for 'Brim'. Results show that cultivars differ significantly (P > 0.05) in the extent of cross-pollination and as much as 2.5% outcrossing may occur in MG IV, V, and VI cultivars in some environments where adequate pollinators are present and other conditions are favorable. Based on these results, soybean breeders should use greater isolation of initial progeny rows and breeder seed of a new cultivar than has commonly been used in the past because of the increased potential for outcrossing of some cultivars.