International Sugar Journal

Narrow-sense heritability estimates of resistance of sugarcane to Sugarcane yellow leaf virus* [Full subscriber]

Abstract     Sugarcane yellow leaf virus (SCYLV) can infect many modern sugarcane varieties and cause insidious yield losses in susceptible cultivars. Information about the heritability of resistance to SCYLV is useful in designing appropriate breeding strategies likely to generate genetic gains and develop resistant varieties. This study aimed at computing quantitative estimates of narrow-sense heritability (h2) of resistance to SCYLV using the parent-offspring regression method. A set of 37 genitors and a total of 41 derived bi-parental progenies were tested in field trials in natural conditions of infection prevailing in Guadeloupe. Parents and progenies were assessed for leaf SCYLV incidence in…

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