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In exploitation of genetic diversity in potato breeding
Huazhong Agricultural University, China.
Högskolan i Skövde, Institutionen för vård och natur. Högskolan i Skövde, Forskningscentrum för Systembiologi.
University of Rajshahi, Bangladesh.
Huazhong Agricultural University, China.
Vise andre og tillknytning
2010 (engelsk)Inngår i: Agronomski Glasnik (Agronomy Journal), ISSN 1848-8900, Vol. 72, nr 4-5, s. 261-276Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

With a view to select divergent parents genetic diversity was estimated among twenty genotypes. Thirty F1 progenies developed by line-tester mating were studied from seedling generation to first clonal generation for five important agronomic traits. Cluster analysis reveals that the parents could be grouped into seven different clusters. Cluster means showed wide range of variation for several traits among singles as well as multi genotypic clusters. Considering diversity pattern, parents should select from cluster I, III, IV, and V for the improvement of potato. Analysis of variance revealed that all most all the sources of variation were highly significant for all the studied traits in both generations. Parents Challisha, Lalpakri, Patnai, Chamak, Sadagoti, TPS-67 and TPS-364 were found to be good general combiners for tuber yield and yield contribution traits due to their gca effects. The sca effects showed that out of 30 hybrids 12 were found to have specific combining ability for tuber yield and those hybrids also exhibited considerable heterosis for tuber yield and yield contributing traits.

sted, utgiver, år, opplag, sider
Zagreb: Hrvatsko agronomsko društvo , 2010. Vol. 72, nr 4-5, s. 261-276
Emneord [en]
Combining ability, first clonal generation, genetic diversity, heterosis, seedling generation, Solanum tuberosum
HSV kategori
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Naturvetenskap
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URN: urn:nbn:se:his:diva-5628OAI: oai:DiVA.org:his-5628DiVA, id: diva2:511823
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ISSN 0002-1954 (Print)

Tilgjengelig fra: 2012-03-23 Laget: 2012-03-23 Sist oppdatert: 2017-11-27bibliografisk kontrollert

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