Reference Report for IND22071642
| Title: | Early tall determinate soybean genotype E1E1e3e3e4e4dt1dt1 sets high bottom pods |
| Authors: | Cober, E.R., Madill, J., Voldeng, H.D. |
| Source: | Can. J. Plant Sci. 2000, 80(3):527-531 |
| Abstract: | The height of bottom pods on soybean (Glycine max (L.) Merr.) plants can be a major factor affecting seed loss at harvest. Tall determinate lines have been observed to have bottom pods set higher compared with indeterminate cultivars. This study was conducted to compare bottom pod height and other agronomic characteristics of indeterminate cultivars and elite tall determinate lines. Ten indeterminate cultivars and ten tall determinate lines adapted to maturity group 00 to I were evaluated at Ottawa (45degree23'N lat.) and Winchester (45degree6'N lat.), Ontario, in 1996 and 1997. Bottom pods on tall determinate lines were set almost twice as high as bottom pods on indeterminate cultivars. While main stem height did not differ between the two stem types, indeterminate plants had 0.2 more main stem nodes and two additional reproductive nodes than the tall determinate lines. Tall determinate lines yielded only 90% of the indeterminate cultivars and had smaller seeds and increased lodging. These results suggest that tall determinate lines may be valuable in environments where harvesting losses result from low bottom pods, but they still require further agronomic improvement to overcome yield limitations. |
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