Combining Ability on Main Agronomic Traits and Genetic Clustering of Nine New Breeds of Sweet Corns

ZHANG Yang; LIAO Chang-jian; LIN Jian-xin; LU He-ding; CHEN Shan-hu

doi:10.19303/j.issn.1008-0384.2019.01.003

Volume 34 Issue 1

Mar. 2019

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Article Navigation > Fujian Journal of Agricultural Sciences > 2019 > 34(1): 16-21

ZHANG Yang, LIAO Chang-jian, LIN Jian-xin, LU He-ding, CHEN Shan-hu. Combining Ability on Main Agronomic Traits and Genetic Clustering of Nine New Breeds of Sweet Corns[J]. Fujian Journal of Agricultural Sciences, 2019, 34(1): 16-21. doi: 10.19303/j.issn.1008-0384.2019.01.003

Citation:

ZHANG Yang, LIAO Chang-jian, LIN Jian-xin, LU He-ding, CHEN Shan-hu. Combining Ability on Main Agronomic Traits and Genetic Clustering of Nine New Breeds of Sweet Corns[J]. Fujian Journal of Agricultural Sciences, 2019, 34(1): 16-21. doi: 10.19303/j.issn.1008-0384.2019.01.003

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Combining Ability on Main Agronomic Traits and Genetic Clustering of Nine New Breeds of Sweet Corns

doi: 10.19303/j.issn.1008-0384.2019.01.003

Crop Research Institute, Fujian Academy of Agricutural Sciences, Fuzhou, Fujian 350013, China

Received Date: 2018-05-28
Rev Recd Date: 2018-09-20
Publish Date: 2019-01-28

Abstract

Abstract

Objective Genetic backgrounds and combining abilities of 9 newly bred sweet corn inbred lines were studied. Method The inbred lines included 5 white sweet corn female parents P1 (i.e., TS01-1, BS02-1, GS132, AS67 and SS1) and 4 sweet corn male parents P2 (i.e., Mintianxi 688, Mintianxi G73, Mintianxi 197 and X90-34). They were cross-bred into 20 two-tone crosses by a 5×4 incomplete diallel design. The combining ability on 10 traits including plant height, ear location, panicle length, ear girth, ear row count, grains per row, hundred-grain weight, kernel ratio, panicle weight with and without husk, of each hybrid was determined. Result Based on the de-husk panicle weight, the general combining abilities of the white sweet corn inbred lines were in the order of AS67 > GS132 > TS01-1 > BS02-1 > SS1, and those of the yellow sweet corns Mintianxi 688 > X90-34 > Mintianxi G73 > Mintianxi 197. AS67×Mintianxi 688 exhibited the highest specific combining ability with the greatest actual yield among all. The genetic cluster analysis classified the 9 parents into yellow-and white-kernel groups. Conclusion The yellow-kernel and white-kernel sweet corn inbred lines crossed between the 9 parents showed superior heterosis, and the classifications were consistent between the parents and the experimental design.
- sweet corn,
- inbred lines,
- combining ability,
- genetic clustering,

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References(16)

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