Indian Society of Genetics & Plant Breeding

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Early generation identification and utilization of potential inbred lines in modified single cross hybrids of maize (Zea mays L.)

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The essential pre-requisite for commercial production of
single cross maize hybrids is the development of vigorous
high yielding inbred parents. A modified form of Forward
and Reverse Inbreeding Process (FRIP) [1] was used to
develop modified single cross hybrids. This method
involves inbreeding using selfing in the early generations
followed by plant-to-plant sibbing, early generation testing
of lines, deriving sister lines, recombining sister lines and
finally using sister line crosses to develop modified single
cross hybrids. The improved performance of the inbred
lines so derived and also of the experimental hybrids
tested at two diverse locations in this study, substantiates
the effectiveness of this methodology. Inbred testers were
used in test crossing and their utility in hybrid development
is discussed.
 

Keywords: Maize, inbred lines, modified single-cross hybrids, inbred testers.

Info

Year: 2001
Volume: 61
Issue: 3
Article DOI: NA
Print ISSN: 0019-5200
Online ISSN: 0975-6906

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