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Genetic enhancement of pigeonpea for high latitude areas in southern Africa

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Relation http://oar.icrisat.org/1984/
 
Title Genetic enhancement of pigeonpea for high latitude
areas in southern Africa
 
Creator Gwata, E T
Siambi, M
 
Subject Pigeonpea
 
Description Pigeonpea [Cajanus cajan (L.) Millsp.] is becoming increasingly important in small-holder farming

systems in southern Africa. Abiotic factors such as sensitivity to photoperiod and terminal drought

frequently reduce yields in the region. Sensitivity to photoperiod results in delayed flowering and

maturity which in turn leads to increased susceptibility to terminal drought stress, low winter

temperatures, frost as well as interference from free-ranging domestic livestock. The objective of this
study was to develop enhanced early maturing pigeonpea types that are suitable for production in the
cropping systems prevalent in southern Africa. Segregating populations (through F9) were developed
from crossing combinations between five parental genotypes possessing marked differences in the
genetic control of period to flowering and maturity as well as good agronomic and end-use characters.Using morphological markers and agronomic performance indicators, six elite cultivars with enhanced
duration to flowering (97 d), maturity (161 d) and high yield potential (3.0 t/ha) were identified following
field evaluation for two consecutive seasons at a representative testing location in the prospective
production region. The seed of this elite germplasm was disseminated to growers in order to facilitate
adoption and to increase the flexibility of pigeonpea production in the region.
 
Publisher Academic Publishers
 
Date 2009
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights —
 
Identifier http://oar.icrisat.org/1984/1/African_Journal_of_Biotechnology_Vol._8_%2818%29%2C_pp._4413-4417.pdf
Gwata, E T and Siambi, M (2009) Genetic enhancement of pigeonpea for high latitude areas in southern Africa. African Journal of Biotechnology, 8 (18). pp. 4413-4457. ISSN 1684-5315