Summary
Five Hawaiian commercial sugarcane (Saccharum sp. hybrids) clones were crossed in a full diallel. Four morphological characters were studied in the progeny: number of millable stalks per plant, stalk diameter, stalk length, and sucrose content. A fifth character, plant volume, was calculated from stalk number, stalk diameter and stalk length. The five selected parental clones were treated as fixed variables in the analysis. General combining ability (gca) was significant for all five characters; specific combining ability (sca) was significant for stalk diameter, stalk length, and plant volume. The variance for gca was large in all progeny populations. However, the variance for sca was large in the progeny of only some clones and/or for some individual characters. Parents were evaluated on the basis of their general combining ability: clone H49-3533 had high gca for sucrose content, while clone H53-5356 had high gca for plant vigor.
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Communicated by R.W. Allard
Published with the approval of the Director as Journal Series Paper No. 455, Experiment Station, Hawaiian Sugar Planters' Association.
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Wu, K.K., Heinz, D.J., Meyer, H.K. et al. Combining ability and parental evaluation in five selected clones of sugarcane (Saccharum sp. hybrids). Theoret. Appl. Genetics 56, 241–244 (1980). https://doi.org/10.1007/BF00282565
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DOI: https://doi.org/10.1007/BF00282565