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Studies on variability and character association in selfed and biparental progenies in bhendi (Abelmoschus esculentus (L.) Moench)

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Title Studies on variability and character association in selfed and biparental progenies in bhendi (Abelmoschus esculentus (L.) Moench)
 
Creator C.K.Raju
 
Contributor G.Shantha Kumar
 
Subject Genetics and Plant Breeding
 
Description Okra (Abelmoschus esculentus (L) Monech) is an important vegetable crop grown in
the tropical and sub-tropical parts of the world. The present investigation was carried out
during kharif and summer season 2007-08 at Agriculture Research Station, Hanumanamatti
to study the nature and magnitude of variability generated for different quantitative traits in
the population obtained by attempting crosses in F2 generation of 4 commercial single cross
private bhendi hybrids i.e. safal, rasi, seminis and ph101. The study was also aimed at to
know relative efficiency of BIPs over F3 generation. Crossing and selfing were attempted in
the first season and evaluation was done in the next season.
The results revealed that mean value were in high F3 than BIPs because of wider
variability generated in BIPs. The magnitudes of GCV, PCV, heritability and genetic advance
were enhanced in BIPs for all the characters studied except 100 seed weight than the selfed
populations. Bipaerntal mating also resulted in shift in the magnitude as well as direction of
correlation coefficients.
This approach will help in creating new population with high frequencies of rare
recombinants which can not otherwise be realized in small segregating populations normally
being raised through conventional method of breeding especially when desired genes are
unfavourably linked. In addition to these, it will also help in maintaining a greater variability
for selection to be effective for longer period and will thus avoid the early fixation of genes in
homozygous state.
 
Date 2016-10-27T15:59:10Z
2016-10-27T15:59:10Z
2008
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/82587
 
Format application/pdf
 
Publisher UAS, Dharwad