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Heritability of components of a simple physiological model for yield in groundnut under semiarid rainfed conditions

OAR@ICRISAT

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Relation http://oar.icrisat.org/5100/
http://dx.doi.org/10.1016/S0378-4290(98)00083-5
 
Title Heritability of components of a simple physiological model for yield in groundnut under semiarid rainfed conditions
 
Creator Ntare, B R
Williams, J H
 
Subject Groundnut
 
Description Use of physiological models has been suggested as a means to improve efficiency of breeding for higher yield. Our objectives
were to estimate heritabilities of yield components of groundnut (Arachis hypogaea L.) identified in a yield model [crop
growth rate (C), reproductive duration (DR) and partitioning (p)] and determine their predictive value in early generations.
Forty bulk populations and nine parental lines were evaluated in replicated trials in 1992 (F2), 1993 (F3) and 1994 (F4) at three
contrasting locations in Niger. Physiological components of yield were estimated from final yield and biomass as well as data
on ¯owering and maturity. Differences were observed among populations for pod yield and model components. The effects of
locations were signi®cant (P
 
Publisher Elsevier
 
Date 1998
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights —
 
Identifier http://oar.icrisat.org/5100/1/FieldCropsRes58%281%2925-33.pdf
Ntare, B R and Williams, J H (1998) Heritability of components of a simple physiological model for yield in groundnut under semiarid rainfed conditions. Field Crops Research, 58 (1). pp. 25-33. ISSN 0378-4290