e-journal

A Diallel Crossing Approach Aimed On Selection For Ripening Time And Yield In Breeding Of New Strawberry (Fragaria x ananassa Duch.) Cultivars

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The extension of the ripening season in open field production is of high
economic interest for strawberry growers. Therefore, targeted breeding
for extreme early or late ripening cultivars with high yield potential is of
particular interest. Thirteen strawberry cultivars were crossed in a reciprocal
way without selfing, and the 144 resulting F1 populations were
evaluated in a field trial over a period of two consecutive years. The data
were analysed using a mixed-model approach adapted for diallel crossing
designs using SAS 9.3. The variability in the crossing approach is mainly
based on the general combining ability (GCA) of the cultivars (additive
effects). Specific and reciprocal combining abilities (non-additive effects)
appear less important. The highest GCAs for the trait Marketable Yield
were found for the cultivars ‘Polka’ and ‘Yamaska’. The trait Earliness
is bilateral with significantly low GCAs for early ripening in ‘Clery’ and
‘Daroyal’ and significantly high GCAs for late ripening in ‘Yamaska’
and ‘Florence’. Crosses with these cultivars are likely to deliver populations
with both high yield and an extended ripening period.
Key words: Fragaria — ripening period — yield — general
combining ability — specific combining ability

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Informasi Detail

Judul Seri

Plant Breeding

No. Panggil

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Penerbit

: Blackwell Verlag GmbH, wileyonlinelibrary.com., 2014

Deskripsi Fisik

Plant Breeding 133, 115–120 (2014)

Bahasa

English

ISBN/ISSN

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Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

PERTANIAN.

Info Detail Spesifik

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Pernyataan Tanggungjawab

Agus

Versi lain/terkait

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