Expected responses to aggregate trait selection in maize (Zea mays L.)

Expected responses to aggregate trait selection in maize (Zea mays L.)

This study was conducted with the objective of predicting and comparing expected gains for two selection indices and to aid identification of a better index to improve maize populations for a target environment, in thiscase, small-farm conditions. Data from S2 lines from each of three populations evaluated at three locations in 1988 were subjected to (a) an index that uses economic weights and (b) rank summation index (RSI) that is both weight and parameter free. Responses to single trait selections were much higher than using an index. RSI was considered a better index because it was operationally more efficient and simpler. Selection through RSI will in addition to improving the aggregate trait in the desired direction, improve grain yield and will not increase height much.

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Bibliographic Details
Main Author: Ajala, S.
Format: Journal Article biblioteca
Language:English
Published: 2010
Subjects:zea mays, maize, aggregate data,
Online Access:https://hdl.handle.net/10568/89384
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spelling dig-cgspace-10568-893842023-06-12T08:17:34Z Expected responses to aggregate trait selection in maize (Zea mays L.) Ajala, S. zea mays maize aggregate data This study was conducted with the objective of predicting and comparing expected gains for two selection indices and to aid identification of a better index to improve maize populations for a target environment, in thiscase, small-farm conditions. Data from S2 lines from each of three populations evaluated at three locations in 1988 were subjected to (a) an index that uses economic weights and (b) rank summation index (RSI) that is both weight and parameter free. Responses to single trait selections were much higher than using an index. RSI was considered a better index because it was operationally more efficient and simpler. Selection through RSI will in addition to improving the aggregate trait in the desired direction, improve grain yield and will not increase height much. 2010 2017-11-14T08:07:52Z 2017-11-14T08:07:52Z Journal Article Ajala, S.O. (2010). Expected responses to aggregate trait selection in maize (Zea mays L.). Journal of Food, Agriculture & Environment, 8(1), 185-189. 1459-0255 https://hdl.handle.net/10568/89384 en Limited Access 185-189 Journal of Food, Agriculture and Environment
institution CGIAR
collection DSpace
country Francia
countrycode FR
component Bibliográfico
access En linea
databasecode dig-cgspace
tag biblioteca
region Europa del Oeste
libraryname Biblioteca del CGIAR
language English
topic zea mays
maize
aggregate data
zea mays
maize
aggregate data
spellingShingle zea mays
maize
aggregate data
zea mays
maize
aggregate data
Ajala, S.
Expected responses to aggregate trait selection in maize (Zea mays L.)
description This study was conducted with the objective of predicting and comparing expected gains for two selection indices and to aid identification of a better index to improve maize populations for a target environment, in thiscase, small-farm conditions. Data from S2 lines from each of three populations evaluated at three locations in 1988 were subjected to (a) an index that uses economic weights and (b) rank summation index (RSI) that is both weight and parameter free. Responses to single trait selections were much higher than using an index. RSI was considered a better index because it was operationally more efficient and simpler. Selection through RSI will in addition to improving the aggregate trait in the desired direction, improve grain yield and will not increase height much.
format Journal Article
topic_facet zea mays
maize
aggregate data
author Ajala, S.
author_facet Ajala, S.
author_sort Ajala, S.
title Expected responses to aggregate trait selection in maize (Zea mays L.)
title_short Expected responses to aggregate trait selection in maize (Zea mays L.)
title_full Expected responses to aggregate trait selection in maize (Zea mays L.)
title_fullStr Expected responses to aggregate trait selection in maize (Zea mays L.)
title_full_unstemmed Expected responses to aggregate trait selection in maize (Zea mays L.)
title_sort expected responses to aggregate trait selection in maize (zea mays l.)
publishDate 2010
url https://hdl.handle.net/10568/89384
work_keys_str_mv AT ajalas expectedresponsestoaggregatetraitselectioninmaizezeamaysl
_version_ 1779048734228742144

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