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Feasibility of breeding male-sterile populations for use in developing interpopulation hybrids of pearl millet

OAR@ICRISAT

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Relation http://oar.icrisat.org/1920/
 
Title Feasibility of breeding male-sterile populations for use in developing interpopulation hybrids of pearl millet
 
Creator Rai, K N
Andrews, D J
Rao, A S
 
Subject Millets
 
Description Inter!population hybrids of pearl millet\ Pennisetum `laucum "L[# R[
Br[\ have a substantial grain yield advantage over open!pollinated var!
ieties that makes them an appropriate and economically viable prop!
osition for many African agricultural situations\ provided that stable
male!sterile populations can be developed for use as seed parents[ The
objective of this research was to examine the feasibility of breeding
stable male!sterile populations\ using the d1 dwarf version of Nigerian
Composite NCD1 and the A3 cytoplasmic�nuclear male sterility system
as a test case[ Results showed that two cycles of recurrent selection for
sterility maintenance ability led to the development of a fully e}ective
maintainer version of NCD1[ There was no signi_cant di}erence
between the original C9 cycle bulk and the C2 cycle bulk "developed
from the third and _nal cycle of recurrent selection# for grain yield
and other agronomic traits[ The male!sterile population at the third
backcross stage\ developed from the maintainer version of NCD1\ had
as high a level of stable male sterility as the A0 system commercial
inbred male!sterile line 730A0[ Thus\ it is concluded that with the use
of the A3 cytoplasmic male!sterile system\ it would be possible rapidly
to develop a maintainer version of any population without detrimental
e}ects on grain yield and agronomic traits[ Male sterility of populations
developed from these maintainers will be highly stable\ paving the way
for their e}ective utilization as seed parents in breeding inter!population
hybrids[
 
Publisher Blackwell Publishing
 
Date 2000
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights —
 
Identifier http://oar.icrisat.org/1920/1/PlBreed119_4_335-339_2000.pdf
Rai, K N and Andrews, D J and Rao, A S (2000) Feasibility of breeding male-sterile populations for use in developing interpopulation hybrids of pearl millet. Plant Breeding, 119 (4). pp. 335-339. ISSN 9068-8430