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P-85<br />

New triploid seedless table grape cultivar 'Moonlight Seedless' bred in China<br />

S.J. Zhao*, Z.J. Guo, A.H. Ma, C.H. Liu, J.W. Yuan<br />

Changli Research Institute of Fruit Trees, Hebei Academy of Agricultural <strong>and</strong> Forestry Sciences,<br />

Changli, Hebei, China<br />

*Corresponding author: zhaoshengjian@sohu.com<br />

'Moonlight Seedless', released in 2009, is the third cultivar from our triploid seedless table grape<br />

breeding <strong>program</strong> initiated in the early 1980s. The previous releases, 'Earlyred Seedless' (1998),<br />

'Champion Seedless' (2003), are serving as some of the leading cultivars for the seedless table<br />

grape industry in Hebei Province. 'Moonlight Seedless' originated from the cross between the<br />

diploid 'Muscat Hamburg ' V. vinifera<strong>and</strong> the tetraploid 'Kyoho'V. vinifera × V.<br />

labruscamade in 1991. Agrobiological properties, characteristics of bunches <strong>and</strong> berries, <strong>and</strong><br />

productivity of 'Moonlight Seedless' were investigated. 'Moonlight Seedless' is triploid. The<br />

vines are very vigorous. It ripens in late August, at the same time as 'Kyoho'. Bunches are loose<br />

<strong>with</strong> small, seedless berries. GA3 <strong>and</strong> CPPU treatments are necessary to improve bunch <strong>and</strong><br />

berry size. The bunches are conical, relatively compact, averaging 581g <strong>and</strong> the berries are 9.0g<br />

on average, purple black <strong>with</strong> medium crisp flesh. Soluble solid content averages 19.4%. It is<br />

very productive. The resistance of the cultivar to diseases is similar to that of 'Kyoho'.<br />

166


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