Evaluation of sources of propagating-material for sweet-potato production |
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| Authors: | DO Huett |
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| Institution: | New South Wales Department of Agriculture, Tropical Fruit Research Station, Alstonville, N.S.W.Australia |
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| Abstract: | The yield and variability of sweet-potato cultivars (Ipomoea batatas L.) propagated from high-yielding plants (clonal) was compared with those of random field material. Clonal propagation was based on selection for one season and produced few yield responses.A yield comparison was made of a high- and a low-yielding commercial source of cultivar ‘White Maltese’. The former, which represented continuous selection based on yield and disease incidence, produced higher yields than the low-yielding source. In all experiments and for all cultivars, a yield increase through selection was not consistently associated with a reduction in variability.Propagation from heat-treated and apparently virus-free plants produced a 140% yield increase over virus-infected field material. |
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| Keywords: | Author to whom correspondence should be addressed |
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