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Mass-selection strategies for pearl millet improvement

OAR@ICRISAT

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Relation http://oar.icrisat.org/6938/
 
Title Mass-selection strategies for pearl millet improvement
 
Creator Rattunde, H F W
 
Subject Millets
 
Description Mass selection is frequently used for genetically improving pearl
millet (Pennisetum slaucum R. Br.). To ascertain the ability of mass selection
to modify traits of agronomic importance to pearl millet, this
study determined (a) the heritability and interrelationships of those
traits and (b) the realized gains obtained from selection. SO and S
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populations of three pearl millet composites were evaluated for an array
of agronomic and developmental traits. Parent-offspring heritability
values ranged from 0.46 to 0.64 for panicle size and seed traits, from
0.27 to 0.58 for productivity traits, and from 0.16 to 0.32 for partitioning
traits, when averaged over three pearl millet composites. Interrelationships
among traits were identified by factor analyses and found to be
similar in the three composites. Unique groups of traits were associated
with biological yield, panicle size, and seed factors. Certain traits,
however, were associated with both the biological yield and the partitioning
factors. The orientations of S plants along the biological yield,
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panicle size, and seed parameters factors were siqnificantly related to
orientations of their S progenies along the correspondinq factors......
 
Date 1988
 
Type Thesis
NonPeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://oar.icrisat.org/6938/1/T%2058620.pdf
Rattunde, H F W (1988) Mass-selection strategies for pearl millet improvement. PhD thesis, Iowa State University.