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Heterosis Studies in Line × Tester Crosses of Maize for Yield and its Component Traits in Maize (Zea mays L.) Across Locations

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Title Heterosis Studies in Line × Tester Crosses of Maize for Yield and its Component Traits in Maize (Zea mays L.) Across Locations
Not Available
 
Creator Bichewar, N.D
Prasad, B.V
Kumar, M.V
Sunil, N
Mallaiah, B
Meena, A
 
Subject : Useful heterosis, Hybrids, Checks
 
Description Not Available
Heterosis is a quantifiable, trait-dependent and environment-specific phenotype, and the
response of parental lines and their hybrids to environments resulted in various levels of heterosis hence,
conformation of standard heterosis in maize hybrids is essential to exploit them commercially and
thereupon uplifting their production potential. Therefore, the present study was designed in order to
deduce the hybrid potential and useful heterosis to magnify the production and productivity of maize.
Thirty single cross hybrids along with four standard checks were evaluated at three location using
randomized block design during rabi, 2022-23. Analysis of variance due to mean square of genotype exhibit
significant difference for all the studied traits indicating the presence of sufficient variation. Thirteen
hybrids recorded the higher grain yield than the best check Bio 9544 and GP 329×GP 83, GP 82×GP 83
and PFSR 145×GP 69 were the top performers. Seven hybrids (GP 329×GP 83, GP 82×GP 83, PFSR
145×GP 69, GP 329×GP 86, PFSR 393×GP 107, GP 329×GP 107 and PFSR 204× GP 107) exhibited the
significant and positive heterosis over the best check hybrid. Hybrid PFSR 393×GP 86 for ear length, GP
329×GP 69 for ear girth, GP 329×GP 86 for number of kernel per ear and number of kernel per row and
PFSR 393×GP 83 for 100 grain weigh reported the significant heterosis in desirable direction over best
checks. The hybrid GP 329×GP 83 had higher yield potential and found to be early in maturity indicating
its significance in developing potential early maturing maize hybrid. The identified promising hybrids
could be endorsed for future breeding programme following the conformation of results by repeating the
research across locations.
Not Available
 
Date 2024-03-05T10:10:59Z
2024-03-05T10:10:59Z
1001-01-01
 
Type Journal
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/81559
 
Language English
 
Relation Not Available;
 
Publisher Not Available