Correlation analysis and path coefficients for yield components in nine experimental tomato lines

The objective of the research was to analyze the main variables related to tomato yield, and to guide the selection of materials for the INIAF vegetable breeding program. The experiment was carried out in open field using 9 tomato lines in the farms of the National Center for Vegetable Seed Producti...

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Main Authors:	Gonzalo Quispe-Choque, Nancy Huanca-Alanoca
Format:	Article
Language:	Spanish
Published:	Selva Andina Research Society 2023-08-01
Series:	Journal of the Selva Andina Research Society
Subjects:	path coefficients; performance components; lines
Online Access:	http://www.scielo.org.bo/scielo.php?script=sci_arttext&pid=S2072-92942023000200026&lng=es&nrm=iso&tlng=en
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author	Gonzalo Quispe-Choque Nancy Huanca-Alanoca
author_facet	Gonzalo Quispe-Choque Nancy Huanca-Alanoca
author_sort	Gonzalo Quispe-Choque
collection	DOAJ
description	The objective of the research was to analyze the main variables related to tomato yield, and to guide the selection of materials for the INIAF vegetable breeding program. The experiment was carried out in open field using 9 tomato lines in the farms of the National Center for Vegetable Seed Production, during the 2018-2019 agricultural season. A randomized complete block experimental design was used, with 3 replications and 10 plants per experimental unit. For data analysis, the yield variable was considered as the dependent variable and the variables number of flowers per inflorescence, number of clusters per plant, number of fruits per plant, fruit weight, equatorial and polar diameter as independent variables. Analysis of variance, phenotypic correlations and path coefficients were performed. The yield of line L015 was 80.79 t ha-1 higher than lines L014, L019 and Rio Grande. Fruit yield was significantly correlated with fruit weight per plant followed by polar diameter, equatorial diameter, number of fruits per plant and fruit weight. Path coefficient analysis was that the number of fruits per plant had the highest positive direct effect on fruit yield, fruit weight and polar diameter showing significant correlation and direct effect on fruit yield emerged as the components with coefficients 0.57, 0.33 and 0.46, respectively. These traits may be relevant within the selection criteria in the development of new varieties.
format	Article
id	doaj-art-1507ead241ed448bb2bace3e64bf8435
institution	Kabale University
issn	2072-9294 2072-9308
language	Spanish
publishDate	2023-08-01
publisher	Selva Andina Research Society
record_format	Article
series	Journal of the Selva Andina Research Society
spelling	doaj-art-1507ead241ed448bb2bace3e64bf84352025-08-20T03:40:42ZspaSelva Andina Research SocietyJournal of the Selva Andina Research Society2072-92942072-93082023-08-011422635doi:10.36610/j.jsars.2023.140200026Correlation analysis and path coefficients for yield components in nine experimental tomato linesGonzalo Quispe-Choque0https://orcid.org/0000-0002-7634-5094Nancy Huanca-Alanoca1https://orcid.org/0009-0000-8074-113XNational Directorate for Production and Services. National Vegetable Project. National Institute for Agricultural and Forestry Innovation. Villa Montenegro 23 ½ km, Cochabamba-Oruro road. Tel: +591-2-2 2124404. Cochabamba. Plurinational State of BoliviaNational Directorate for Production and Services. National Vegetable Project. National Institute for Agricultural and Forestry Innovation. Villa Montenegro 23 ½ km, Cochabamba-Oruro road. Tel: +591-2-2 2124404. Cochabamba. Plurinational State of BoliviaThe objective of the research was to analyze the main variables related to tomato yield, and to guide the selection of materials for the INIAF vegetable breeding program. The experiment was carried out in open field using 9 tomato lines in the farms of the National Center for Vegetable Seed Production, during the 2018-2019 agricultural season. A randomized complete block experimental design was used, with 3 replications and 10 plants per experimental unit. For data analysis, the yield variable was considered as the dependent variable and the variables number of flowers per inflorescence, number of clusters per plant, number of fruits per plant, fruit weight, equatorial and polar diameter as independent variables. Analysis of variance, phenotypic correlations and path coefficients were performed. The yield of line L015 was 80.79 t ha-1 higher than lines L014, L019 and Rio Grande. Fruit yield was significantly correlated with fruit weight per plant followed by polar diameter, equatorial diameter, number of fruits per plant and fruit weight. Path coefficient analysis was that the number of fruits per plant had the highest positive direct effect on fruit yield, fruit weight and polar diameter showing significant correlation and direct effect on fruit yield emerged as the components with coefficients 0.57, 0.33 and 0.46, respectively. These traits may be relevant within the selection criteria in the development of new varieties.http://www.scielo.org.bo/scielo.php?script=sci_arttext&pid=S2072-92942023000200026&lng=es&nrm=iso&tlng=enpath coefficients; performance components; lines
spellingShingle	Gonzalo Quispe-Choque Nancy Huanca-Alanoca Correlation analysis and path coefficients for yield components in nine experimental tomato lines Journal of the Selva Andina Research Society path coefficients; performance components; lines
title	Correlation analysis and path coefficients for yield components in nine experimental tomato lines
title_full	Correlation analysis and path coefficients for yield components in nine experimental tomato lines
title_fullStr	Correlation analysis and path coefficients for yield components in nine experimental tomato lines
title_full_unstemmed	Correlation analysis and path coefficients for yield components in nine experimental tomato lines
title_short	Correlation analysis and path coefficients for yield components in nine experimental tomato lines
title_sort	correlation analysis and path coefficients for yield components in nine experimental tomato lines
topic	path coefficients; performance components; lines
url	http://www.scielo.org.bo/scielo.php?script=sci_arttext&pid=S2072-92942023000200026&lng=es&nrm=iso&tlng=en
work_keys_str_mv	AT gonzaloquispechoque correlationanalysisandpathcoefficientsforyieldcomponentsinnineexperimentaltomatolines AT nancyhuancaalanoca correlationanalysisandpathcoefficientsforyieldcomponentsinnineexperimentaltomatolines

Correlation analysis and path coefficients for yield components in nine experimental tomato lines

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