Summary
Two soybean cultivars of a respectively determinate type and semi-determinate type were subject to reciprocal crossings with two varieties of an indeterminate type. The study was concerned with the performance of the parents and their reciprocal F1 hybrids in terms of mature plant weight, seed yield, harvest index, and percentage of oil and proteins in the seed. In some cases, the comparison with the better of the two parents showed that heterosis had occurred for the plant weight and seed yield. As for the other characteristics, the averages obtained for the hybrids were intermediate between those of the parents. Significant reciprocal differences were noted not only in the plant weight and seed yield, but also in the protein content, suggesting a possible positive cytoplasmic effect of the SWIFT cultivar on these characters.
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Daydé, J., Ecochard, R. & Marmey, P. The possible influence of cytoplasm on the performance of reciprocal soybean hybrids. Euphytica 44, 49–53 (1989). https://doi.org/10.1007/BF00022598
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DOI: https://doi.org/10.1007/BF00022598