Profiling the diversity of morphological traits for future Malaysian breeding programme in capsicum genetic resources

Capsicum spp. is a very important crop in Malaysia because of high demand in local market. However, local chili production is low mainly due to poor seed quality or unavailability of high yielding varieties under tropical environment. Thus, the aim of the research project was to assess the morpholog...

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Main Author:	Sarobo, Zulaikha
Format:	Thesis
Language:	English
Published:	2019
Subjects:	Q Science (General)
Online Access:	http://eprints.utm.my/id/eprint/81177/1/ZulaikhaSaroboMFS2019.pdf
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id	my-utm-ep.81177
record_format	uketd_dc
spelling	my-utm-ep.811772019-07-24T03:35:12Z Profiling the diversity of morphological traits for future Malaysian breeding programme in capsicum genetic resources 2019-01 Sarobo, Zulaikha Q Science (General) Capsicum spp. is a very important crop in Malaysia because of high demand in local market. However, local chili production is low mainly due to poor seed quality or unavailability of high yielding varieties under tropical environment. Thus, the aim of the research project was to assess the morphological characteristics in 45 Capsicum genetic resources, collected from local and exotic resources. The Capsicum genotypes were characterized for speed of germination (SG), germination energy (GE), plant height (PH), leaf area (LA), days to flowering (DFL), days to fruiting (DFR), total fruit weight (TFW), fruit length (FL), fruit dry weight (FDW) and seed dry weight (SDW). The data of these traits were subjected to analysis of variance (ANOVA), correlation analysis and multivariate analysis using cluster analysis based on percent similarity coefficient. ANOVA revealed that local as well as exotic Capsicum genetic resources exhibited diversity for all the morphological parameters. TFW showed the maximum diversity as compared to other traits. However, the least diversity was shown in PH trait. TFW exhibited positive correlation with FDW, SDW, LA, DFR, DFR and FL for both exotic and local Capsicum spp. Thus, direct selection for traits; TFW, FDW, SDW, LA, DFL, DFR, and FL will be helpful for selection of chili varieties in Malaysia. Through cluster analysis, both genotypes of exotic and local Capsicum spp. had been clustered into two major cluster at 64.08% similarity coefficient, and also grouped into 12 sub-clusters at 78.88% similarity coefficient. Cluster I to cluster VIII was in major group 1 while cluster IX to XII in major group 2. For better emphasis, PA10, PA38 and L10 were the most unique compared to the rest because they were classified as a single genotype in a node with similarity coefficient at 76.34%. Genotype L10 was the most outstanding compared to the rest due to its uniformed flowering and fruiting. Therefore, the selection of high yielding variety within both major clusters can be an advantage for future breeding programme. 2019-01 Thesis http://eprints.utm.my/id/eprint/81177/ http://eprints.utm.my/id/eprint/81177/1/ZulaikhaSaroboMFS2019.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:124979 masters Universiti Teknologi Malaysia, Faculty of Science Faculty of Science
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	Q Science (General)
spellingShingle	Q Science (General) Sarobo, Zulaikha Profiling the diversity of morphological traits for future Malaysian breeding programme in capsicum genetic resources
description	Capsicum spp. is a very important crop in Malaysia because of high demand in local market. However, local chili production is low mainly due to poor seed quality or unavailability of high yielding varieties under tropical environment. Thus, the aim of the research project was to assess the morphological characteristics in 45 Capsicum genetic resources, collected from local and exotic resources. The Capsicum genotypes were characterized for speed of germination (SG), germination energy (GE), plant height (PH), leaf area (LA), days to flowering (DFL), days to fruiting (DFR), total fruit weight (TFW), fruit length (FL), fruit dry weight (FDW) and seed dry weight (SDW). The data of these traits were subjected to analysis of variance (ANOVA), correlation analysis and multivariate analysis using cluster analysis based on percent similarity coefficient. ANOVA revealed that local as well as exotic Capsicum genetic resources exhibited diversity for all the morphological parameters. TFW showed the maximum diversity as compared to other traits. However, the least diversity was shown in PH trait. TFW exhibited positive correlation with FDW, SDW, LA, DFR, DFR and FL for both exotic and local Capsicum spp. Thus, direct selection for traits; TFW, FDW, SDW, LA, DFL, DFR, and FL will be helpful for selection of chili varieties in Malaysia. Through cluster analysis, both genotypes of exotic and local Capsicum spp. had been clustered into two major cluster at 64.08% similarity coefficient, and also grouped into 12 sub-clusters at 78.88% similarity coefficient. Cluster I to cluster VIII was in major group 1 while cluster IX to XII in major group 2. For better emphasis, PA10, PA38 and L10 were the most unique compared to the rest because they were classified as a single genotype in a node with similarity coefficient at 76.34%. Genotype L10 was the most outstanding compared to the rest due to its uniformed flowering and fruiting. Therefore, the selection of high yielding variety within both major clusters can be an advantage for future breeding programme.
format	Thesis
qualification_level	Master's degree
author	Sarobo, Zulaikha
author_facet	Sarobo, Zulaikha
author_sort	Sarobo, Zulaikha
title	Profiling the diversity of morphological traits for future Malaysian breeding programme in capsicum genetic resources
title_short	Profiling the diversity of morphological traits for future Malaysian breeding programme in capsicum genetic resources
title_full	Profiling the diversity of morphological traits for future Malaysian breeding programme in capsicum genetic resources
title_fullStr	Profiling the diversity of morphological traits for future Malaysian breeding programme in capsicum genetic resources
title_full_unstemmed	Profiling the diversity of morphological traits for future Malaysian breeding programme in capsicum genetic resources
title_sort	profiling the diversity of morphological traits for future malaysian breeding programme in capsicum genetic resources
granting_institution	Universiti Teknologi Malaysia, Faculty of Science
granting_department	Faculty of Science
publishDate	2019
url	http://eprints.utm.my/id/eprint/81177/1/ZulaikhaSaroboMFS2019.pdf
_version_	1747818314796630016

Profiling the diversity of morphological traits for future Malaysian breeding programme in capsicum genetic resources

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