Yield and Quality Characteristics of Lettuce Lines Developed by Mutation Breeding

Şule Kökpınar; Kadriye Yaprak Kantoglu; Şeküre Şebnem Ellialtıoğlu

doi:10.29133/yyutbd.1666194

Yield and Quality Characteristics of Lettuce Lines Developed by Mutation Breeding

Abstract

In this study, we aimed to create genetic variation through physical mutagen application to lettuce (Lactuca sativa var. longifolia), a vegetable species whose leaves are consumed fresh, to obtain new varieties rich in nutritional content that can create market demand from this gene pool. Cervantes and Escule lettuce seeds were irradiated with effective mutation doses determined specific to the variety using a Cobalt-60 gamma ray source. Selection and inbreeding studies were performed for 4 generations, and 36 mutant lines were selected from the lines at the M4 stage to be used in subsequent experiments. Height, diameter, weight, leaf color, water-soluble dry matter (WSDM), chlorophyll, total carotenoid, vitamin C, lutein and total phenolic content of lettuce heads were examined in 36 mutant lines selected and in 4 commercial control varieties. The differences between the data obtained were statistically significant. Mutant lines numbered 62, 66, 71, 72, 74, 77, 84, and 100 which were found to be superior in terms of both morphological characteristics and nutritional content, were selected for inclusion in yield trials as a variety of candidates. These findings represent a significant step in increasing genetic diversity in agricultural production and developing lettuce varieties with higher yield and nutritional value.

Keywords

Supporting Institution

This research was funded by the Republic of Turkey Ministry of Agriculture and Forestry, General Directorate of Agricultural Research And Policies.

Ethical Statement

Ethical approval is not required for this study because no harm was done to nature and the environment.

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Details

Primary Language

English

Subjects

Crop and Pasture Breeding

Journal Section

Research Article

Authors

Şule Kökpınar ^*
0000-0002-6481-5618
Türkiye

Kadriye Yaprak Kantoglu
0000-0002-7247-9116
Türkiye

Şeküre Şebnem Ellialtıoğlu
0000-0002-3851-466X
Türkiye

Publication Date

December 25, 2025

Submission Date

March 27, 2025

Acceptance Date

July 1, 2025

Published in Issue

Year 1970 Volume: 35 Number: 4

DOI

https://doi.org/10.29133/yyutbd.1666194

IZ

https://izlik.org/JA55DU53ZU

Cite

RIS / Bibtex

APA

Kökpınar, Ş., Kantoglu, K. Y., & Ellialtıoğlu, Ş. Ş. (2025). Yield and Quality Characteristics of Lettuce Lines Developed by Mutation Breeding. Yuzuncu Yıl University Journal of Agricultural Sciences, 35(4), 644-658. https://doi.org/10.29133/yyutbd.1666194